IT Essentials Final 1-10

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| By Pstam424512

Pstam424512

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Quizzes Created: 2 | Total Attempts: 666

Questions: 281 | Attempts: 87 | Updated: Nov 10, 2023

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Questions and Answers

1.

What is the purpose of an IRQ
- A.
  
  Perform input/output between the CPU and peripherals.
- B.
  
  Establish peer-to-peer communication between devices and software
- C.
  
  Request information from the CPU.
- D.
  
  Access the computer RAM for reading and writing
Correct Answer
C. Request information from the CPU.

Explanation
The purpose of an IRQ is to request information from the CPU.

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2.

When calculating the total cost of ownership of a printer it is necessary to consider the cost of the consumables. Which two consumables are associated with an inkjet printer? (Choose two.)
- A.
  
  Drum
- B.
  
  Ink cartridge
- C.
  
  Ink ribbon
- D.
  
  Paper
- E.
  
  Toner
Correct Answer(s)
B. Ink cartridge
D. Paper

Explanation
When calculating the total cost of ownership of an inkjet printer, it is important to consider the cost of the consumables. Two consumables associated with an inkjet printer are ink cartridges and paper. Ink cartridges are necessary for printing and need to be replaced when they run out. Paper is also essential for printing documents and needs to be regularly replenished. The drum, ink ribbon, and toner are not associated with inkjet printers and therefore not relevant to the question.

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3.

Which network device uses a MAC address table to segment the network
- A.
  
  Concentrator
- B.
  
  Hub
- C.
  
  PBX
- D.
  
  Router
- E.
  
  Switch
Correct Answer
E. Switch

Explanation
A switch uses a MAC address table to segment the network. This means that the switch can forward network traffic only to the device it is intended for, based on its MAC address. Switches create a separate collision domain for each port, allowing for simultaneous communication between devices connected to different ports. This improves network performance and security by reducing network congestion and preventing unauthorized access to network resources.

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4.

A technician has replaced a failing floppy drive. While testing the new drive, the technician notices that the floppy drive light constantly. What is most likely the cause of the problem?
- A.
  
  The new floppy drive is faulty
- B.
  
  The ribbon cable is installed incorrectly.
- C.
  
  The jumper settings are set incorrectly for the floppy drive.
- D.
  
  The floppy drive has been disabled in the BIOS.
Correct Answer
B. The ribbon cable is installed incorrectly.

Explanation
The most likely cause of the problem is that the ribbon cable is installed incorrectly. This can cause issues with the communication between the floppy drive and the computer, leading to the constant activity of the floppy drive light.

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5.

When installing the Windows XP operating system, a technician is given a choice of file systems to use. If security is a requwhich file system should be chosen?
- A.
  
  FAT32
- B.
  
  HPFS
- C.
  
  NFS
- D.
  
  NTFS
Correct Answer
D. NTFS

Explanation
NTFS should be chosen as the file system when installing the Windows XP operating system if security is a requirement. NTFS (New Technology File System) provides advanced security features such as file and folder permissions, encryption, and auditing. It allows for better control and protection of data, making it the preferred choice for securing sensitive information on a Windows XP system.

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6.

When analyzing a protocol used on the network, it is discovered that multicast messages are being sent to network devices. class of IP addressing is being used to send these messages?
- A.
  
  A
- B.
  
  B
- C.
  
  C
- D.
  
  D
- E.
  
  E
Correct Answer
D. D

Explanation
The correct answer is D. The reason why class D IP addressing is used to send multicast messages on the network is because class D addresses are reserved for multicast communication. Multicast messages are sent to a group of devices that have joined a multicast group, allowing for efficient distribution of data to multiple recipients. Class D addresses range from 224.0.0.0 to 239.255.255.255.

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7.

What do the terms refresh rate, interlace, and aspect ratio explain?
- A.
  
  Hard drive efficiency
- B.
  
  Audio signal
- C.
  
  Scanner output
- D.
  
  Image properties of a monitor
Correct Answer
D. Image properties of a monitor

Explanation
The terms refresh rate, interlace, and aspect ratio all pertain to the image properties of a monitor. The refresh rate refers to the number of times per second that the image on the screen is refreshed or updated. Interlace refers to a technique where the image is displayed by alternating between even and odd lines, which can affect the overall image quality. Aspect ratio refers to the proportional relationship between the width and height of the image on the screen, which can determine the shape and size of the displayed content.

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8.

A user has been writing data to a USB flash memory drive. What should the user do before removing the device?
- A.
  
  Shut down the computer
- B.
  
  Click on the Safely Remove Hardware icon in the system tray then on the device.
- C.
  
  Right-click on the drive in My Computer, then click on Remove Drive .
- D.
  
  Remove the power to the drive.
Correct Answer
B. Click on the Safely Remove Hardware icon in the system tray then on the device.

Explanation
Before removing a USB flash memory drive, it is important to properly eject it to avoid data loss or corruption. Clicking on the Safely Remove Hardware icon in the system tray and then selecting the device ensures that all read and write operations are completed and the drive is safely disconnected from the computer. This allows the file system to be properly closed and any cached data to be written to the drive, ensuring that no data is lost or corrupted.

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9.

A network administrator is troubleshooting a server that keeps crashing. While monitoring traffic to the server, the administrepeated, larger than normal pings to the server. What is the name of this type of attack?
- A.
  
  Multi-ping attack
- B.
  
  Phishing
- C.
  
  Ping bomb
- D.
  
  Ping of death
- E.
  
  Spoofing
- F.
  
  Zombie attack
Correct Answer
D. Ping of death

Explanation
The correct answer is "ping of death". This type of attack involves sending repeated, larger than normal pings to a server, causing it to crash or become unresponsive. This attack takes advantage of vulnerabilities in the server's handling of oversized or malformed ping packets, overwhelming the system's resources and causing it to fail.

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10.

A supervisor received a complaint that one of the technicians was rude and disrespectful. Which action by the technician most caused the customer to complain?
- A.
  
  The technician interrupted a number of times to ask questions.
- B.
  
  The technician occasionally confirmed an understanding of the problem.
- C.
  
  The customer was escalated to a level-two technician.
- D.
  
  The technician ended the call without saying "Have a nice day".
Correct Answer
B. The technician occasionally confirmed an understanding of the problem.

Explanation
The technician occasionally confirming an understanding of the problem could have caused the customer to complain because it suggests that the technician was not fully engaged or actively listening to the customer's concerns. This lack of attentiveness and empathy may have made the customer feel unheard and disrespected, leading to the complaint.

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11.

When installing a service pack or security patches on an operating system, what should be done to protect the system in faulty or aborted installation?
- A.
  
  Create a restore point.
- B.
  
  Check the updates for the latest ones.
- C.
  
  Disable Automatic Updates to prevent interference with the current operation.
- D.
  
  Test all aspects to ensure that the update is correct for the operating system.
Correct Answer
A. Create a restore point.

Explanation
Creating a restore point is the best way to protect the system in the event of a faulty or aborted installation of service packs or security patches. A restore point allows the user to revert the system back to its previous state before the installation, effectively undoing any changes that may have caused issues. This ensures that the system can be restored to a stable state without any adverse effects.

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12.

What is a benefit of using the USB or FireWire ports to connect peripherals to a laptop?
- A.
  
  The peripherals can be plugged in and out without turning the laptop off.
- B.
  
  Data transfer is more controlled than using the parallel or serial ports.
- C.
  
  The peripherals do not need drivers to communicate with the OS.
- D.
  
  Connections are much more reliable.
Correct Answer
C. The peripHerals do not need drivers to communicate with the OS.

Explanation
Using USB or FireWire ports to connect peripherals to a laptop eliminates the need for drivers to communicate with the operating system. This means that the peripherals can be easily connected and used without having to install any additional software or drivers. This simplifies the process and saves time for the user.

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13.

Which two technologies enable printers to be accessed by multiple network users? (Choose two.)
- A.
  
  Wi-Fi
- B.
  
  SCSI
- C.
  
  Ethernet
- D.
  
  USB
- E.
  
  IEEE 1394
Correct Answer(s)
A. Wi-Fi
C. Ethernet

Explanation
Wi-Fi and Ethernet are the two technologies that enable printers to be accessed by multiple network users. Wi-Fi allows wireless connectivity, allowing users to connect to the printer without the need for physical cables. Ethernet, on the other hand, uses wired connections to connect printers to the network, allowing multiple users to access the printer simultaneously. Both technologies provide convenient and efficient ways for multiple network users to connect and use printers.

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14.

Which power mode should be used by a laptop so that all the data is saved, all the applications the user was working on are and there is no power used by the laptop?
- A.
  
  Hibernate
- B.
  
  Suspend
- C.
  
  Left on with no power mode
- D.
  
  Soft shutdown
Correct Answer
A. Hibernate

Explanation
Hibernate is the correct answer because it allows the laptop to save all the data and applications the user was working on, while also conserving power. When a laptop is put into hibernate mode, it saves the current state of the system to the hard drive and shuts down completely. This means that no power is used by the laptop, but when it is turned back on, the user can resume exactly where they left off with all their data and applications intact.

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15.

A technician wishes to boot a computer using a CD-ROM that contains a limited operating system and diagnostic utilities. Where the technician set the boot order for the PC?
- A.
  
  My Computer
- B.
  
  Control Panel
- C.
  
  Device Manager
- D.
  
  BIOS
- E.
  
  Start Menu
Correct Answer
D. BIOS

Explanation
The technician would need to set the boot order in the BIOS (Basic Input/Output System) of the computer. The BIOS is responsible for initializing hardware components and loading the operating system. By setting the boot order in the BIOS, the technician can specify that the computer should first attempt to boot from the CD-ROM, allowing them to use the limited operating system and diagnostic utilities contained on the CD-ROM.

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16.

Which two quick solutions are commonly recommended when a technician is troubleshooting a laptop? (Choose two.)
- A.
  
  Reboot the laptop.
- B.
  
  Reinstall the operating system.
- C.
  
  Disconnect the peripherals.
- D.
  
  Have the customer verify the problem.
- E.
  
  Call a level-2 technician.
Correct Answer(s)
A. Reboot the laptop.
C. Disconnect the peripHerals.

Explanation
When troubleshooting a laptop, rebooting the laptop is a commonly recommended solution as it can resolve many software-related issues. Rebooting refreshes the system and can fix temporary glitches. Disconnecting the peripherals is also commonly recommended as it helps identify if any external devices are causing the problem. By disconnecting the peripherals, the technician can isolate the issue and determine if it is related to the laptop itself or any connected devices.

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17.

ABC Inc. decided to integrate redundancy by connecting multiple hard disks to duplicate the information they store. Which adapter will need to be installed on the servers to accomplish the desired redundancy?
- A.
  
  NIC
- B.
  
  Wireless NIC
- C.
  
  USB gateway
- D.
  
  RAID adapter
- E.
  
  Multiple slave hard disk adapter
Correct Answer
D. RAID adapter

Explanation
To accomplish the desired redundancy of duplicating information stored on multiple hard disks, ABC Inc. will need to install a RAID adapter on the servers. RAID stands for Redundant Array of Independent Disks, and it is a technology that allows for data to be distributed across multiple disks in a way that provides redundancy and improves performance. By using a RAID adapter, ABC Inc. can configure the hard disks in a RAID array, ensuring that if one disk fails, the data can still be accessed from the other disks. This helps to prevent data loss and minimize downtime.

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18.

Which network protocol is used to automatically assign an IP address to a computer on a network?
- A.
  
  FTP
- B.
  
  DHCP
- C.
  
  ICMP
- D.
  
  SMTP
- E.
  
  APIPA
Correct Answer
B. DHCP

Explanation
DHCP (Dynamic Host Configuration Protocol) is the correct answer because it is a network protocol used to automatically assign IP addresses to computers on a network. It allows devices to obtain an IP address, subnet mask, default gateway, and other network configuration settings automatically, without manual intervention. This protocol simplifies the process of network administration and saves time by automatically assigning IP addresses to devices as they connect to the network.

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19.

A mobile training room uses a generator to power the PCs, servers, and printers. The company that runs the room upgraded equipment but then found that when all the devices are powered up they become unreliable, with some PCs shutting down. cause this power problem?
- A.
  
  The printer is creating electrical noise when it is printing, which causes the computers to shut off.
- B.
  
  The power consumption of all devices is too much for the electrical circuit that is provided
- C.
  
  The power consumption of all the computers and printers operating simultaneously is causing a power surge.
- D.
  
  The power requirements of the printer warm-up cycle cause a spike, which results in the computers shutting down.
Correct Answer
B. The power consumption of all devices is too much for the electrical circuit that is provided

Explanation
The power consumption of all devices being too much for the electrical circuit provided is a likely explanation for the power problem. When all the devices are powered up simultaneously, the circuit may not be able to handle the load, leading to unreliable performance and even shutdowns of some PCs. This suggests that the circuit is not adequately designed to handle the power demand of the upgraded equipment.

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20.

The technician has been asked to upgrade the printer driver for an old printer. What is the best source for a new driver?
- A.
  
  Manufacturer's website
- B.
  
  Microsoft Update website
- C.
  
  Printer installation disk
- D.
  
  Windows Device Manager
- E.
  
  Windows hardware profiles
Correct Answer
A. Manufacturer's website

Explanation
The best source for a new driver for an old printer would be the manufacturer's website. This is because the manufacturer's website is likely to have the most up-to-date and compatible driver for the specific printer model. The manufacturer's website is also a reliable source as it is directly from the company that produced the printer.

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21.

Which Registry file contains information about all software that is installed on a Windows XP computer?
- A.
  
  HKEY_CLASSES_ROOT
- B.
  
  HKEY_CURRENT_USER
- C.
  
  HKEY_LOCAL_MACHINE
- D.
  
  HKEY_CURRENT_CONFIG
Correct Answer
C. HKEY_LOCAL_MACHINE

Explanation
HKEY_LOCAL_MACHINE is the correct answer because it is a registry file that contains information about all software installed on a Windows XP computer. The HKEY_LOCAL_MACHINE hive stores settings and configuration data for the entire computer system, including software installations and hardware settings.

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22.

A customer used the convert.exe utility to take advantage of NTFS security features. The customer later discovered that the application on the computer can only read FAT32 files. After the hard drive was formatted back to FAT32, the customer noticed all of the data files are missing. What should the customer do next?
- A.
  
  Run convertFAT32.exe.
- B.
  
  Restore the data files that were backed up in preparation for the conversion.
- C.
  
  Reset the file attribute to show hidden files.
- D.
  
  Restart the computer after updating the hard drive to FAT32.
Correct Answer
B. Restore the data files that were backed up in preparation for the conversion.

Explanation
The customer should restore the data files that were backed up in preparation for the conversion. When the hard drive was formatted back to FAT32, all of the data files were erased. By restoring the backed up data files, the customer can recover the missing data.

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23.

Which Windows tool should be run before upgrading the operating system?
- A.
  
  Convert
- B.
  
  Fdisk
- C.
  
  Msconfig
- D.
  
  Ntbackup
Correct Answer
D. Ntbackup

Explanation
Before upgrading the operating system, it is recommended to run the Windows tool called Ntbackup. This tool allows users to create backups of important files and settings on their computer. By running Ntbackup before the upgrade, users can ensure that their data is safely backed up, minimizing the risk of losing important files during the upgrade process.

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24.

The technician has been asked to upgrade the printer driver for an old printer. What is the best source for a new driver?
- A.
  
  Manufacturer's website
- B.
  
  Microsoft Update website
- C.
  
  Printer installation disk
- D.
  
  Windows Device Manager
- E.
  
  Windows hardware profiles
Correct Answer
A. Manufacturer's website

Explanation
The best source for a new driver for an old printer is the manufacturer's website. This is because the manufacturer's website is likely to have the most up-to-date and compatible driver for the specific printer model. The manufacturer knows their product best and regularly updates their website with the latest drivers, ensuring optimal performance and compatibility. Other sources like the Microsoft Update website, printer installation disk, Windows Device Manager, or Windows hardware profiles may not have the most recent driver version or may not support the specific printer model.

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25.

What is the best way to fully ensure that data is unable to be recovered from a hard drive?
- A.
  
  Formatting the drive
- B.
  
  Deleting the partitions on the hard drive
- C.
  
  Overwriting data multiple times, rendering the data unusable
- D.
  
  Shattering the hard drive platters with a hammer
Correct Answer
D. Shattering the hard drive platters with a hammer

Explanation
Shattering the hard drive platters with a hammer is the best way to fully ensure that data is unable to be recovered from a hard drive. This method physically destroys the platters, making it impossible to retrieve any data stored on them. Formatting the drive or deleting partitions may still leave traces of data that can be recovered using specialized software. Overwriting data multiple times can make it more difficult to recover, but it is still possible with advanced techniques. Shattering the hard drive platters is the most effective method to guarantee data destruction.

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26.

A technician is troubleshooting a user complaint that a printer is not printing a report. Which step is one of the first that the technician should take?
- A.
  
  Reinstall the printer driver.
- B.
  
  Ensure that there is paper in the paper tray.
- C.
  
  Supply a spare printer for the user until the problem is solved
- D.
  
  Check the Device Manager on the user computer for hardware problems.
Correct Answer
B. Ensure that there is paper in the paper tray.

Explanation
The technician should first ensure that there is paper in the paper tray. This is because a common issue with printers not printing is that there is no paper or not enough paper in the paper tray. By checking and adding paper if necessary, the technician can eliminate this as a possible cause of the problem before moving on to other troubleshooting steps.

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27.

A supervisor received a complaint that one of the technicians was rude and disrespectful. Which action by the technician most likely caused the customer to complain?
- A.
  
  The technician interrupted a number of times to ask questions.
- B.
  
  The technician occasionally confirmed an understanding of the problem.
- C.
  
  The customer was escalated to a level-two technician.
- D.
  
  The technician ended the call without saying "Have a nice day".
Correct Answer
B. The technician occasionally confirmed an understanding of the problem.

Explanation
The technician occasionally confirming an understanding of the problem could have caused the customer to complain because it suggests that the technician was not fully attentive or actively listening to the customer's concerns. This lack of empathy and engagement may have made the customer feel unheard and disrespected, leading them to file a complaint.

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28.

A technician installed a network adapter in a computer and wants to test network connectivity. The ping command can only receive a response from local workstations. What could be causing the problem?
- A.
  
  The NIC driver is out of date.
- B.
  
  The operating system is not compatible with the remote sites.
- C.
  
  The TCP/IP protocol stack is not loaded.
- D.
  
  The default gateway is not set.
Correct Answer
D. The default gateway is not set.

Explanation
The default gateway is not set. In order to communicate with devices outside of the local network, a default gateway needs to be configured on the computer. The default gateway is the IP address of the router or gateway device that connects the local network to other networks. Without a default gateway, the computer does not know where to send network traffic that is destined for remote sites. Therefore, the ping command can only receive responses from local workstations because it can only communicate within the local network.

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29.

A technician is asked to wire a network that supports CSMA/CD. Which architecture and physical topology should the technician use for supporting this access control method?
- A.
  
  Ethernet and Star
- B.
  
  FDDI and Ring
- C.
  
  Token Ring and Double Ring
- D.
  
  Wireless and Ring
Correct Answer
A. Ethernet and Star

Explanation
The technician should use Ethernet and Star architecture and physical topology to support CSMA/CD access control method. In Ethernet, multiple devices are connected to a central hub or switch in a star topology, allowing for easy troubleshooting and scalability. CSMA/CD (Carrier Sense Multiple Access with Collision Detection) is the access control method used in Ethernet networks, where devices listen for carrier signals before transmitting data and detect collisions if multiple devices transmit at the same time. Therefore, Ethernet and Star topology are the appropriate choices for supporting CSMA/CD.

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30.

A company uses a single computer to receive and test all Windows updates. When the most recent update was installed, several programs failed. What is the first course of action that a technician should attempt to remove the update?
- A.
  
  Run a System Restore from the last restore point.
- B.
  
  Use the Add or Remove Hardware applet in the Control Panel to remove the update
- C.
  
  Restore the hard drive from the last system backup.
- D.
  
  Use the Recovery Console to restore the operating system.
Correct Answer
A. Run a System Restore from the last restore point.

Explanation
The first course of action that a technician should attempt to remove the update is to run a System Restore from the last restore point. This will revert the computer's settings and configuration back to a previous state, before the update was installed, potentially resolving any issues caused by the update.

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31.

A customer needs to purchase a new power supply for a computer. What must be considered when selecting an appropriate power supply?
- A.
  
  The power supply converts DC to AC.
- B.
  
  The power supply has sufficient wattage to support all components inside the computer.
- C.
  
  The power supply provides at least 800 V.
- D.
  
  The power supply must have both a P-8 and P-9 connector.
Correct Answer
B. The power supply has sufficient wattage to support all components inside the computer.

Explanation
When selecting an appropriate power supply for a computer, it is important to consider whether the power supply has sufficient wattage to support all components inside the computer. This is because different components require different amounts of power, and if the power supply does not have enough wattage, it may not be able to provide enough power to all the components, leading to instability or failure of the system.

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32.

ABC Inc. decided to integrate redundancy by connecting multiple hard disks to duplicate the information they store. Which type of adapter will need to be installed on the servers to accomplish the desired redundancy?
- A.
  
  NIC
- B.
  
  Wireless NIC
- C.
  
  USB gateway
- D.
  
  RAID adapter
- E.
  
  Multiple slave hard disk adapter
Correct Answer
D. RAID adapter

Explanation
To accomplish the desired redundancy of duplicating information stored on multiple hard disks, ABC Inc. would need to install a RAID adapter on the servers. RAID (Redundant Array of Independent Disks) is a technology that allows for the simultaneous use of multiple hard drives to improve performance, reliability, and redundancy. By using a RAID adapter, the server can manage and control the multiple hard disks effectively, ensuring that data is duplicated and stored across the disks for redundancy purposes.

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33.

What is the purpose of an IRQ?
- A.
  
  Perform input/output between the CPU and peripherals.
- B.
  
  Establish peer-to-peer communication between devices and software.
- C.
  
  Request information from the CPU.
- D.
  
  Access the computer RAM for reading and writing.
Correct Answer
C. Request information from the CPU.

Explanation
The purpose of an IRQ is to request information from the CPU. IRQ stands for Interrupt Request, and it is a signal sent by a device to the CPU to request its attention. When a device needs to communicate with the CPU, it sends an interrupt request, which interrupts the normal execution of the CPU and transfers control to a specific interrupt handler. The interrupt handler then processes the request and provides the necessary information to the device. Therefore, the correct answer is "Request information from the CPU."

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34.

A user reports that a printer is printing unknown characters on documents. What is a possible solution to this issue?
- A.
  
  Replace the toner or ink cartridge.
- B.
  
  Uninstall and reinstall the printer driver.
- C.
  
  Replace the paper with some from a new ream.
- D.
  
  Delete the print job from the queue and print again.
Correct Answer
D. Delete the print job from the queue and print again.

Explanation
If a printer is printing unknown characters on documents, it is possible that the print job in the queue is corrupted or contains incompatible data. By deleting the print job from the queue and printing again, it allows for a fresh start and ensures that the printer receives a clean and compatible print job, which may resolve the issue of printing unknown characters.

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35.

A technician wishes to boot a computer using a CD-ROM that contains a limited operating system and diagnostic utilities. Where would the technician set the boot order for the PC?
- A.
  
  My Computer
- B.
  
  Control Panel
- C.
  
  Device Manager
- D.
  
  BIOS
- E.
  
  Start Menu
Correct Answer
D. BIOS

Explanation
The technician would set the boot order for the PC in the BIOS. The BIOS (Basic Input/Output System) is a firmware that is responsible for initializing hardware components during the boot process. It allows the technician to configure various settings, including the boot order, which determines the sequence in which the computer looks for bootable devices. By setting the CD-ROM as the first boot device in the BIOS, the technician can ensure that the computer boots from the CD-ROM containing the limited operating system and diagnostic utilities.

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36.

When installing a service pack or security patches on an operating system, what should be done to protect the system in the event of a faulty or aborted installation?
- A.
  
  Create a restore point.
- B.
  
  Check the updates for the latest ones.
- C.
  
  Disable Automatic Updates to prevent interference with the current operation.
- D.
  
  Test all aspects to ensure that the update is correct for the operating system.
Correct Answer
A. Create a restore point.

Explanation
When installing a service pack or security patches on an operating system, it is important to create a restore point to protect the system in the event of a faulty or aborted installation. A restore point allows the system to be rolled back to a previous state before the installation, effectively undoing any changes made during the installation process. This ensures that if something goes wrong or the installation is not successful, the system can be restored to its previous working condition without any major consequences.

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37.

Which network protocol is used to automatically assign an IP address to a computer on a network?
- A.
  
  FTP
- B.
  
  DHCP
- C.
  
  ICMP
- D.
  
  SMTP
- E.
  
  APIPA
Correct Answer
B. DHCP

Explanation
DHCP (Dynamic Host Configuration Protocol) is the correct answer because it is the network protocol used to automatically assign an IP address to a computer on a network. DHCP allows network administrators to manage and allocate IP addresses dynamically, making it easier to connect devices to a network without manually configuring each one. FTP (File Transfer Protocol) is used for transferring files, ICMP (Internet Control Message Protocol) is used for network error reporting, SMTP (Simple Mail Transfer Protocol) is used for sending emails, and APIPA (Automatic Private IP Addressing) is a feature that assigns a private IP address when DHCP is not available.

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38.

A network administrator is troubleshooting a server that keeps crashing. While monitoring traffic to the server, the administrator notices repeated, larger than normal pings to the server. What is the name of this type of attack?
- A.
  
  Multi-ping attack
- B.
  
  Phishing
- C.
  
  Ping bomb
- D.
  
  Ping of death
- E.
  
  Spoofing
- F.
  
  Zombie attack
Correct Answer
D. Ping of death

Explanation
The correct answer is "ping of death". In a ping of death attack, the attacker sends oversized or malformed ping packets to the target server, causing it to crash or become unresponsive. This type of attack takes advantage of vulnerabilities in the server's handling of ICMP (Internet Control Message Protocol) packets. By repeatedly sending large pings, the attacker can overwhelm the server's resources and disrupt its normal operation.

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39.

A technician notices that a data floppy disk is in the floppy disk drive of a computer when it is powered on. Which error message could this potentially cause?
- A.
  
  Device / service failed to start
- B.
  
  Floppy disk corrupted
- C.
  
  Invalid system disk
- D.
  
  Corrupted driver
Correct Answer
C. Invalid system disk

Explanation
If a data floppy disk is in the floppy disk drive of a computer when it is powered on, it could potentially cause an error message stating "invalid system disk." This is because the computer is expecting a valid system disk, typically the hard drive, to boot the operating system from. Since a data floppy disk does not contain the necessary system files, the computer recognizes it as an invalid system disk and displays the corresponding error message.

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40.

When analyzing a protocol used on the network, it is discovered that multicast messages are being sent to network devices. Which class of IP addressing is being used to send these messages?
- A.
  
  A
- B.
  
  B
- C.
  
  C
- D.
  
  D
- E.
  
  E
Correct Answer
D. D

Explanation
The correct answer is D. The IP addressing class being used to send multicast messages to network devices is Class D. Class D addresses are reserved for multicast addresses, which are used to send messages to a group of devices simultaneously. Multicast messages are sent to a specific multicast group address and devices that have joined that group will receive the messages.

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41.

A technician needs to configure the hard drive on a computer so that there appears to be one drive for the operating system and four drives for data from different applications. How can the hard drive be configured to provide this perception?
- A.
  
  Create five primary partitions
- B.
  
  Create one extended partition with five logical drives within it.
- C.
  
  Create one primary partition and an extended partition with four logical drives within it.
- D.
  
  Create five extended partitions.
- E.
  
  Create one logical partition with five primary partitions within it.
- F.
  
  Create one primary partition and one logical partition with four logical drives within it.
Correct Answer
C. Create one primary partition and an extended partition with four logical drives within it.

Explanation
By creating one primary partition and an extended partition with four logical drives within it, the technician can configure the hard drive to provide the perception of one drive for the operating system and four drives for data from different applications. The primary partition will be used for the operating system, while the extended partition will be divided into four logical drives to store data from different applications. This configuration allows for the organization and separation of data, providing the desired perception of multiple drives.

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42.

A technician is asked to configure the time the system must be idle before the hard disk spins down on all the Windows-based laptops in the company. The technician configured the power options in Windows but it appears to have no effect. Where should the technician look to enable power management?
- A.
  
  Administrative Tools
- B.
  
  BIOS
- C.
  
  Command Prompt
- D.
  
  Safe mode
- E.
  
  System Registry
Correct Answer
A. Administrative Tools

Explanation
The technician should look in the Administrative Tools to enable power management. This is because the power options in Windows are typically controlled through the Administrative Tools, which provide access to various system management and configuration utilities. By configuring the power options in the Administrative Tools, the technician can set the desired time for the system to be idle before the hard disk spins down on all the Windows-based laptops in the company.

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43.

A user has been writing data to a USB flash memory drive. What should the user do before removing the device?
- A.
  
  Shut down the computer.
- B.
  
  Click on the Safely Remove Hardware icon in the system tray then on the device.
- C.
  
  Right-click on the drive in My Computer, then click on Remove Drive .
- D.
  
  Remove the power to the drive.
Correct Answer
B. Click on the Safely Remove Hardware icon in the system tray then on the device.

Explanation
Before removing a USB flash memory drive, it is important to safely eject it to avoid data loss or corruption. Clicking on the Safely Remove Hardware icon in the system tray and then selecting the device ensures that all data transfers are completed and the drive is safely disconnected from the computer. This allows the operating system to properly close any open files and ensure that the drive is ready to be removed without causing any damage or data loss.

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44.

What do the terms refresh rate, interlace, and aspect ratio explain?
- A.
  
  Hard drive efficiency
- B.
  
  Audio signal
- C.
  
  Scanner output
- D.
  
  Image properties of a monitor
Correct Answer
D. Image properties of a monitor

Explanation
The terms refresh rate, interlace, and aspect ratio are all related to the image properties of a monitor. The refresh rate refers to the number of times per second that the image on the monitor is refreshed or redrawn. Interlace is a technique used in video display where alternating lines are drawn in two separate passes, resulting in a smoother image. Aspect ratio refers to the proportional relationship between the width and height of the image displayed on the monitor. These terms are all used to describe and understand the visual characteristics and quality of the images displayed on a monitor.

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45.

Which Registry file contains information about all software that is installed on a Windows XP computer?
- A.
  
  HKEY_CLASSES_ROOT
- B.
  
  HKEY_CURRENT_USER
- C.
  
  HKEY_LOCAL_MACHINE
- D.
  
  HKEY_CURRENT_CONFIG
Correct Answer
C. HKEY_LOCAL_MACHINE

Explanation
The HKEY_LOCAL_MACHINE registry file contains information about all software that is installed on a Windows XP computer. This registry file is a hierarchical database that stores configuration settings and options for the operating system and installed software. It includes information about system hardware, device drivers, and software settings. The HKEY_LOCAL_MACHINE registry file is accessible to all users on the computer and is commonly used for system-wide settings and configurations.

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46.

When a Windows XP computer has completed the POST for each adapter card that has a BIOS, what is the next step during the boot sequence?
- A.
  
  BIOS reads the MBR.
- B.
  
  NTDETECT.COM is used to detect any installed hardware
- C.
  
  NTDLR reads the registry files.
- D.
  
  The WINLOGON.EXE program is started.
Correct Answer
A. BIOS reads the MBR.

Explanation
After completing the POST for each adapter card that has a BIOS, the next step during the boot sequence is for the BIOS to read the MBR (Master Boot Record). The MBR contains the boot loader, which is responsible for loading the operating system. By reading the MBR, the BIOS can locate and initiate the boot loader, allowing the operating system to start loading.

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47.

A customer reports that after using a computer for over a year, the computer now takes more time to access the files. Which management tool can be used first, before any other complex procedure?
- A.
  
  Fdisk
- B.
  
  Format
- C.
  
  Defrag
- D.
  
  Disk management
- E.
  
  System file checker
Correct Answer
C. Defrag

Explanation
Defragmentation (defrag) is the correct management tool to be used first in this scenario. Over time, as files are created, modified, and deleted, they become fragmented, meaning they are stored in non-contiguous locations on the hard drive. This can lead to slower access times as the computer has to search for each piece of the file. Defragmentation rearranges the fragmented files, placing them in contiguous locations, which improves the computer's performance and reduces file access time. Therefore, running a defrag tool would be the first step to address the issue of slow file access.

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48.

Which network device uses a MAC address table to segment the network?
- A.
  
  Concentrator
- B.
  
  Hub
- C.
  
  PBX
- D.
  
  Router
- E.
  
  Switch
Correct Answer
E. Switch

Explanation
A switch is a network device that uses a MAC address table to segment the network. The MAC address table allows the switch to identify the MAC addresses of devices connected to its ports and forward network traffic only to the appropriate destination. This segmentation helps to optimize network performance and improve security by preventing unnecessary traffic from being sent to all devices on the network.

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49.

What characterizes spoofing?
- A.
  
  Making data appear to come from a source other than the actual source.
- B.
  
  Sending abnormally large amounts of data to a remote server to prevent user access to the server services.
- C.
  
  Intercepting or inserting false information in traffic between two hosts.
- D.
  
  Sending bulk e-mail to individuals, lists, or domains intending to prevent users from accessing e-mail.
Correct Answer
A. Making data appear to come from a source other than the actual source.

Explanation
Spoofing is characterized by making data appear to come from a source other than the actual source. This means that the attacker manipulates the data in such a way that it appears to be originating from a different sender than it actually is. This technique is commonly used in phishing attacks, where the attacker impersonates a trusted entity to deceive the recipient into revealing sensitive information or performing certain actions. By disguising the true source of the data, the attacker aims to gain unauthorized access or manipulate the recipient's behavior for malicious purposes.

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50.

Which power mode should be used by a laptop so that all the data is saved, all the applications the user was working on are left open, and there is no power used by the laptop?
- A.
  
  Hibernate
- B.
  
  Suspend
- C.
  
  Left on with no power mode
- D.
  
  Soft shutdown
Correct Answer
A. Hibernate

Explanation
Hibernate is the correct answer because it allows the laptop to save all the data and keep all the applications the user was working on open. In hibernate mode, the laptop shuts down completely, but it saves the current state of the system to the hard drive. This allows the laptop to resume exactly where it left off when it is powered on again. Additionally, hibernate mode consumes no power, making it an energy-efficient option.

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Aug 16, 2012

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IT Essentials Final 1-10

What is the purpose of an IRQ

When calculating the total cost of ownership of a printer it is necessary to consider the cost of the consumables. Which two consumables are associated with an inkjet printer? (Choose two.)

Which network device uses a MAC address table to segment the network

A technician has replaced a failing floppy drive. While testing the new drive, the technician notices that the floppy drive light constantly. What is most likely the cause of the problem?

When installing the Windows XP operating system, a technician is given a choice of file systems to use. If security is a requwhich file system should be chosen?

When analyzing a protocol used on the network, it is discovered that multicast messages are being sent to network devices. class of IP addressing is being used to send these messages?

What do the terms refresh rate, interlace, and aspect ratio explain?

A user has been writing data to a USB flash memory drive. What should the user do before removing the device?

A network administrator is troubleshooting a server that keeps crashing. While monitoring traffic to the server, the administrepeated, larger than normal pings to the server. What is the name of this type of attack?

A supervisor received a complaint that one of the technicians was rude and disrespectful. Which action by the technician most caused the customer to complain?

When installing a service pack or security patches on an operating system, what should be done to protect the system in faulty or aborted installation?

What is a benefit of using the USB or FireWire ports to connect peripherals to a laptop?

Which two technologies enable printers to be accessed by multiple network users? (Choose two.)

Which power mode should be used by a laptop so that all the data is saved, all the applications the user was working on are and there is no power used by the laptop?

A technician wishes to boot a computer using a CD-ROM that contains a limited operating system and diagnostic utilities. Where the technician set the boot order for the PC?

Which two quick solutions are commonly recommended when a technician is troubleshooting a laptop? (Choose two.)

ABC Inc. decided to integrate redundancy by connecting multiple hard disks to duplicate the information they store. Which adapter will need to be installed on the servers to accomplish the desired redundancy?

Which network protocol is used to automatically assign an IP address to a computer on a network?

A mobile training room uses a generator to power the PCs, servers, and printers. The company that runs the room upgraded equipment but then found that when all the devices are powered up they become unreliable, with some PCs shutting down. cause this power problem?

The technician has been asked to upgrade the printer driver for an old printer. What is the best source for a new driver?

Which Registry file contains information about all software that is installed on a Windows XP computer?

Which Windows tool should be run before upgrading the operating system?

The technician has been asked to upgrade the printer driver for an old printer. What is the best source for a new driver?

What is the best way to fully ensure that data is unable to be recovered from a hard drive?

A technician is troubleshooting a user complaint that a printer is not printing a report. Which step is one of the first that the technician should take?

A supervisor received a complaint that one of the technicians was rude and disrespectful. Which action by the technician most likely caused the customer to complain?

A technician installed a network adapter in a computer and wants to test network connectivity. The ping command can only receive a response from local workstations. What could be causing the problem?

A technician is asked to wire a network that supports CSMA/CD. Which architecture and physical topology should the technician use for supporting this access control method?

A company uses a single computer to receive and test all Windows updates. When the most recent update was installed, several programs failed. What is the first course of action that a technician should attempt to remove the update?

A customer needs to purchase a new power supply for a computer. What must be considered when selecting an appropriate power supply?

ABC Inc. decided to integrate redundancy by connecting multiple hard disks to duplicate the information they store. Which type of adapter will need to be installed on the servers to accomplish the desired redundancy?

What is the purpose of an IRQ?

A user reports that a printer is printing unknown characters on documents. What is a possible solution to this issue?

A technician wishes to boot a computer using a CD-ROM that contains a limited operating system and diagnostic utilities. Where would the technician set the boot order for the PC?

When installing a service pack or security patches on an operating system, what should be done to protect the system in the event of a faulty or aborted installation?

Which network protocol is used to automatically assign an IP address to a computer on a network?

A network administrator is troubleshooting a server that keeps crashing. While monitoring traffic to the server, the administrator notices repeated, larger than normal pings to the server. What is the name of this type of attack?

A technician notices that a data floppy disk is in the floppy disk drive of a computer when it is powered on. Which error message could this potentially cause?

When analyzing a protocol used on the network, it is discovered that multicast messages are being sent to network devices. Which class of IP addressing is being used to send these messages?

A technician needs to configure the hard drive on a computer so that there appears to be one drive for the operating system and four drives for data from different applications. How can the hard drive be configured to provide this perception?

A technician is asked to configure the time the system must be idle before the hard disk spins down on all the Windows-based laptops in the company. The technician configured the power options in Windows but it appears to have no effect. Where should the technician look to enable power management?

A user has been writing data to a USB flash memory drive. What should the user do before removing the device?

What do the terms refresh rate, interlace, and aspect ratio explain?

Which Registry file contains information about all software that is installed on a Windows XP computer?

When a Windows XP computer has completed the POST for each adapter card that has a BIOS, what is the next step during the boot sequence?

A customer reports that after using a computer for over a year, the computer now takes more time to access the files. Which management tool can be used first, before any other complex procedure?

Which network device uses a MAC address table to segment the network?

What characterizes spoofing?

Which power mode should be used by a laptop so that all the data is saved, all the applications the user was working on are left open, and there is no power used by the laptop?