1.
RAM stands for
Correct Answer
B. Random Access Memory
Explanation
RAM stands for Random Access Memory. This is a type of computer memory that allows data to be read from or written to in almost the same amount of time, regardless of the physical location of the data within the memory. It is used as the main memory in a computer system and provides temporary storage for data that is actively being used by the CPU. The term "random access" refers to the fact that data can be accessed in any order, rather than sequentially.
2.
What is 1 MB ?
Correct Answer
C. 1024 Kilo Bytes
Explanation
1 MB is equal to 1024 Kilo Bytes. This is because in the binary system, 1 kilobyte is equal to 1024 bytes, and 1 megabyte is equal to 1024 kilobytes. Therefore, 1 MB is equal to 1024 x 1024 bytes, or 1024 kilobytes.
3.
How many bits to make a byte?
Correct Answer
A. 8 bits
Explanation
A byte is a unit of digital information that consists of 8 bits. Each bit can represent a value of either 0 or 1, and when combined, 8 bits form a byte. Therefore, the correct answer is 8 bits.
4.
A network belonging to an organization accessible only by the organization's members or employees.
Correct Answer
C. Intranet
Explanation
An intranet is a private network that is accessible only by the members or employees of an organization. It allows them to securely share information, collaborate on projects, and access internal resources such as documents, databases, and applications. Unlike the Internet, which is a global network accessible to anyone, an intranet is restricted to authorized users within the organization. It provides a secure and controlled environment for communication and information sharing within the organization's boundaries.
5.
The motherboard is
Correct Answer
D. A main circuit board of the computer
Explanation
The motherboard is the main circuit board of the computer. It is responsible for connecting and allowing communication between all the different components of the computer, such as the processor, memory, storage devices, and input/output devices. It provides the electrical and physical connections necessary for these components to function together as a complete system. Without a motherboard, the computer would not be able to operate.
6.
This topology has a central connection point, which is normally a device such as a hub, switch, or router.
Correct Answer
A. Star
Explanation
A star topology is characterized by a central connection point, usually a hub, switch, or router, where all the devices in the network are connected. This central connection point acts as a central point of control and allows for easy management and troubleshooting of the network. In a star topology, each device has its own dedicated connection to the central point, which helps to prevent network congestion and allows for efficient data transmission.
7.
Which of the following network topologies contains a backbone which runs the length of the network?
Correct Answer
C. Bus
Explanation
A bus network topology contains a backbone that runs the length of the network. In this type of topology, all devices are connected to a single cable called the backbone or bus. The backbone acts as a shared communication medium, allowing data to be transmitted from one device to another. This topology is commonly used in local area networks (LANs) and is relatively easy to set up and expand. However, a single point of failure exists in the backbone, as if it fails, the entire network may be affected.
8.
What is the purpose VPN?
Correct Answer
A. Uses the Internet to provide remote offices with secure access to their organization's network
Explanation
A VPN, or Virtual Private Network, is used to provide secure access to an organization's network for remote offices. It utilizes the Internet as a means of connection, allowing employees in different locations to access resources and data securely. By encrypting the data transmitted over the network, VPNs ensure that sensitive information remains protected from unauthorized access. This enables remote workers to connect to their organization's network and access resources as if they were physically present in the office, enhancing productivity and facilitating collaboration.
9.
In a QuickPath Interconnect architecture, the main RAM connects to the:
Correct Answer
C. CPU
Explanation
In a QuickPath Interconnect architecture, the main RAM connects directly to the CPU. This is because QuickPath Interconnect is a high-speed interconnect technology that allows for faster communication between the CPU and other components. By connecting the main RAM directly to the CPU, it reduces latency and improves overall system performance. The Northbridge and Memory Hub are not directly involved in the connection between the main RAM and CPU in this architecture. The Front Side Bus is also not the correct answer as it is a bus that connects the CPU to the Northbridge, not the main RAM.
10.
Hyperthreading is
Correct Answer
C. A method by which one CPU is partitioned into two virtual CPU's
11.
Which of the following is located inside the processor?
Correct Answer
D. Level 1 Cache
Explanation
Level 1 Cache is located inside the processor. It is a small amount of memory that stores frequently accessed data and instructions, allowing for faster access compared to main memory (RAM). It is built directly into the processor chip, providing quick access to the most commonly used data, reducing the need to retrieve it from the slower RAM. This helps improve the overall performance and efficiency of the processor.
12.
Data is transfered from the Ram to the Processor Cache via the __________.
Correct Answer
B. North Bridge
Explanation
The North Bridge is responsible for connecting the processor to other components on the motherboard, including the RAM. It acts as a bridge between the processor and the RAM, allowing data to be transferred from the RAM to the processor cache. The South Bridge, on the other hand, is responsible for connecting peripherals such as USB ports and hard drives. The Bus is a general term referring to the pathways through which data travels within a computer system. A chip circuit is not a specific component related to data transfer between RAM and the processor cache.
13.
Which of the following is the newest cable for connecting a hard drive to the Motherboard?
Correct Answer
C. SATA
Explanation
SATA (Serial ATA) is the newest cable for connecting a hard drive to the motherboard. It replaced the older IDE (Integrated Drive Electronics) and EIDE (Enhanced IDE) cables. SATA cables have a higher data transfer rate and are more efficient compared to IDE cables, making them the preferred choice for modern hard drives. RATA is not a valid option and does not exist as a cable for connecting a hard drive to the motherboard.
14.
What can be used to protect one network from
another, untrusted?
Correct Answer
D. Firewall
Explanation
A firewall can be used to protect one network from another untrusted network. It acts as a barrier between the two networks, monitoring and controlling incoming and outgoing network traffic based on predetermined security rules. It helps to prevent unauthorized access, malicious attacks, and the spread of malware or viruses from the untrusted network to the protected network. By filtering and blocking potentially harmful traffic, a firewall enhances the security and privacy of the network, ensuring that only authorized and safe connections are allowed.
15.
This service will allocate an IP address to a dynamically configured host in the event that DHCP fails to initialize the host.
Correct Answer
D. APIPA
Explanation
APIPA stands for Automatic Private IP Addressing. It is a feature in Windows operating systems that allows a host to automatically assign itself an IP address when it is unable to obtain one from a DHCP server. In the given scenario, if DHCP fails to initialize the host, the service will allocate an IP address to the host using APIPA. This ensures that the host can still connect to the network and communicate with other devices, even without a DHCP server.
16.
DHCP utulizes this to reserve IP addresses for a certain host:
Correct Answer
D. Media Access Control (MAC) Address
Explanation
DHCP (Dynamic Host Configuration Protocol) uses the Media Access Control (MAC) Address to reserve IP addresses for a certain host. The MAC address is a unique identifier assigned to the network interface card of a device. DHCP uses the MAC address to identify and assign a specific IP address to a device, ensuring that the same IP address is consistently assigned to that device each time it connects to the network. This allows for efficient and organized IP address management within a network.
17.
Batch files can be created using?
Correct Answer
A. Notepad
Explanation
Batch files can be created using notepad because notepad is a simple text editor that allows users to write and save plain text files. Batch files are essentially scripts that contain a series of commands and instructions that can be executed by the operating system. Notepad provides a basic and straightforward platform for creating and editing these batch files, making it a suitable tool for this purpose. Microsoft Word and Photoshop, on the other hand, are not designed for creating batch files and lack the necessary functionality for this task.
18.
How do you access the command line in windows?
Correct Answer
B. Going to start then run then typing CMD and hitting ok
Explanation
To access the command line in Windows, you can go to the start menu, then select "Run". In the Run dialog box, type "CMD" (which stands for Command Prompt) and hit "OK". This will open the command line interface where you can enter and execute various commands to interact with the operating system.
19.
Some command line commands include?
Correct Answer
C. Ping, nbtstat, netstat, tracert
Explanation
The given answer lists command line commands such as ping, nbtstat, netstat, and tracert. These commands are commonly used for network troubleshooting and diagnostics. The "ping" command is used to test network connectivity between two devices. "Nbtstat" is used to troubleshoot NetBIOS name resolution issues. "Netstat" displays active network connections and listening ports. "Tracert" is used to trace the route taken by packets across an IP network. These commands are essential for network administrators to identify and resolve network issues effectively.
20.
If I want to delete a folder on
my desktop permanently! Which
shortcut command key should I use?
Correct Answer
B. SHIFT + DELETE.
Explanation
The correct answer is SHIFT + DELETE. When you press SHIFT + DELETE, it permanently deletes the selected folder without moving it to the Recycle Bin. This means that the folder will not be recoverable and will be completely removed from the system.
21.
Which of the following is/are open-source?
Correct Answer
B. Linux
Explanation
Linux is the correct answer because it is an open-source operating system. Open-source refers to software that is freely available for users to view, modify, and distribute. Linux is developed collaboratively by a community of developers and is known for its stability, security, and flexibility. In contrast, Microsoft Windows and Mac OS are proprietary operating systems, meaning they are owned and controlled by their respective companies and their source code is not freely accessible to the public.
22.
While working with MS-DOS, which command will you use to transfer a specific file from one disk to another?
Correct Answer
B. COPY
Explanation
The correct answer is COPY. COPY command is used to transfer files from one disk to another in MS-DOS.
23.
In printer Properties box, it is showing all printed documents, but Print is not coming. Where can I clear and restart the services?
Correct Answer
A. Services.msc
Explanation
In order to clear and restart the services related to printing, you can access the "services.msc" option. This option allows you to view and manage all the services running on your computer. By accessing this option, you can locate the specific printing service that is causing the issue and restart it to resolve the problem.
24.
We can convert the file system FAT 32 to NTFS. (Yes/No)
Correct Answer
A. Yes
Explanation
FAT32 and NTFS are two different file systems used by Windows operating systems. It is possible to convert a file system from FAT32 to NTFS without losing any data. This can be done using the built-in Windows utility called "convert". The convert command allows users to convert a FAT32 partition to NTFS without formatting the drive. Therefore, the correct answer is "Yes".
25.
Which is the layer of a computer system between the hardware and the user program
Correct Answer
C. Operating system
Explanation
The operating system is the layer of a computer system that sits between the hardware and the user program. It manages the hardware resources, provides a user interface, and allows the user program to interact with the hardware. The operating system acts as an intermediary, translating the commands and requests from the user program into instructions that the hardware can understand and execute. It also handles tasks such as memory management, file system management, and process scheduling.
26.
Which class does 192.168.1.10 belong to?
Correct Answer
C. Class C
Explanation
The IP address 192.168.1.10 belongs to Class C. In IP addressing, the first octet of a Class C address ranges from 192 to 223. Since the given IP address starts with 192, it falls within this range and is therefore classified as Class C. Class C addresses are typically used for small to medium-sized networks.
27.
Which class does 127.0.0.1 belong to?
Correct Answer
C. For loopback or localhost only
Explanation
The IP address 127.0.0.1 belongs to the loopback or localhost address range. This address is reserved for testing and communication within the local machine itself. It is commonly used to access network services running on the same host via the loopback interface. This address is not assigned to any specific class, as it is reserved for a specific purpose rather than general network communication.
28.
Which class does 111.111.111.1 belong to?
Correct Answer
A. Class A
Explanation
The IP address 111.111.111.1 belongs to Class A. Class A IP addresses are in the range of 1.0.0.0 to 126.0.0.0 and are used for large networks with a large number of hosts. The first octet of the IP address is in the range of 1 to 126, indicating that it belongs to Class A.
29.
Which class does 224.0.0.0 belong to?
Correct Answer
D. Class D
Explanation
224.0.0.0 belongs to Class D. Class D IP addresses are used for multicast communication, where data is sent from one sender to multiple receivers simultaneously. These addresses range from 224.0.0.0 to 239.255.255.255 and are reserved for multicast groups.
30.
Unicast is considered a one to one type of communication ?
Correct Answer
A. True
Explanation
Unicast is indeed considered a one-to-one type of communication. In a unicast communication, data is sent from a single sender to a specific receiver. This means that the sender and receiver have a direct, dedicated connection, allowing for private and targeted communication. Unicast is commonly used in applications such as email, instant messaging, and video conferencing, where the sender wants to reach a specific recipient without broadcasting the message to multiple recipients.
31.
Which layer of the OSI model does an access layer LAN switch use to make a forwarding decision?
Correct Answer
B. Layer 2
Explanation
An access layer LAN switch uses Layer 2 of the OSI model to make a forwarding decision. Layer 2, also known as the Data Link Layer, is responsible for the reliable transmission of data frames between devices on the same network. The access layer switch examines the MAC addresses in the data frames to determine the destination device and forwards the frames accordingly. It does not involve routing or IP addresses, which are handled at higher layers of the OSI model.
32.
What command is use to check the Connectivity?
Correct Answer
B. PING
Explanation
The correct answer is PING. The PING command is used to check the connectivity between two devices on a network. It sends a small packet of data to the specified IP address or hostname and waits for a response. If a response is received, it indicates that the devices are connected and communication is possible. This command is commonly used to troubleshoot network connectivity issues and to measure the response time (latency) between devices.
33.
What are devices on the network called?
Correct Answer
B. Nodes
Explanation
Devices on a network are commonly referred to as nodes. This term encompasses various devices such as computers, routers, gateways, and any other device that is connected to the network. Nodes play a crucial role in the network infrastructure as they enable communication and data transfer between different devices on the network.
34.
Which expansion slot is used for a video card?
Correct Answer
A. AGP
Explanation
AGP (Accelerated Graphics Port) is the correct answer because it is a dedicated expansion slot specifically designed for video cards. AGP provides a faster connection between the video card and the motherboard, allowing for better performance and higher bandwidth compared to other expansion slots like ATA, ISA, and IDE, which are not designed for video cards.
35.
What is the name of the Windows database for hardware and software configuration information?
Correct Answer
C. Registry
Explanation
The correct answer is Registry. The Windows Registry is a hierarchical database that stores configuration settings and options for the operating system, hardware, and software installed on a computer. It contains information about user preferences, system settings, device drivers, and more. The Registry is an essential component of the Windows operating system, as it allows for the centralized management and organization of configuration data, making it easier for applications and the operating system to access and modify settings.
36.
The following term refers to the method of using the hard drive as though it were RAM:
Correct Answer
C. Virtual memory
Explanation
Virtual memory refers to the method of using the hard drive as though it were RAM. This technique allows the computer to compensate for the limited physical memory by temporarily storing data on the hard drive. When the RAM becomes full, the operating system moves less frequently used data from RAM to the hard drive, freeing up space for more important data. This allows the computer to effectively expand its available memory and improve overall performance.
37.
What is the maximum data speed of high-speed USB 2.0?
Correct Answer
D. 480 Mbps
Explanation
The correct answer is 480 Mbps. USB 2.0, also known as Hi-Speed USB, has a maximum data speed of 480 Mbps. This speed allows for faster data transfer rates compared to the previous USB 1.1 standard.
38.
Which IEEE standard defines the FireWire technology?
Correct Answer
B. 1394
Explanation
The IEEE standard that defines the FireWire technology is 1394.
39.
How many USB devices can be connected to a USB port?
Correct Answer
B. 127
Explanation
A USB port can support up to 127 USB devices. This is because USB uses a 7-bit address scheme, allowing for a maximum of 127 unique addresses. Each USB device connected to the port will be assigned a unique address, and the port can handle communication with all of them simultaneously.
40.
What is the default subnet mask
for a Class A network?
Correct Answer
D. 255.0.0.0
Explanation
The default subnet mask for a Class A network is 255.0.0.0. This subnet mask allows for a large number of network addresses and a small number of host addresses. In a Class A network, the first octet is used to identify the network, while the remaining three octets are used to identify the hosts within that network. Therefore, a subnet mask of 255.0.0.0 means that the first octet is used for the network address, while the remaining three octets are available for host addresses.
41.
Which network device uses a MAC
address table to segment the network?
Correct Answer
E. Switch
Explanation
A switch uses a MAC address table to segment the network. This table keeps track of the MAC addresses of devices connected to the switch and their corresponding ports. When a packet arrives at the switch, it checks the destination MAC address and forwards the packet only to the port where the device with that MAC address is connected. This allows the switch to efficiently send data only to the intended recipient, reducing network congestion and improving network performance.
42.
In what year was the IEEE 802 committee formed?
Correct Answer
A. 1980
Explanation
The IEEE 802 committee was formed in 1980.
43.
A strong password should contain:
Correct Answer
C. At least 8 characters, and a combination of letters, numbers, and characters.
Explanation
A strong password should have at least 8 characters, and it should be a combination of letters, numbers, and characters. This combination makes the password more complex and harder to guess or crack. Having both uppercase and lowercase letters adds an extra layer of security, as it increases the number of possible combinations. Using a word that is easy to remember, such as the name of a pet, makes the password vulnerable to dictionary attacks or guessing. Therefore, the correct answer is to have at least 8 characters, and a combination of letters, numbers, and characters.
44.
Which protocol is the most common in today's computer networks?
Correct Answer
A. TCP/IP
Explanation
TCP/IP is the most common protocol in today's computer networks because it is the foundation of the internet and is widely used for communication between devices. It provides a reliable and efficient way to transmit data packets over a network, ensuring that information is delivered accurately and in the correct order. TCP/IP is also compatible with various operating systems and network devices, making it a versatile and widely adopted protocol.
45.
How can using msconfig help speed up a slow computer?
Correct Answer
A. It allows you to access the start-up menu to view which programs start when the computer boots
Explanation
By accessing the start-up menu through msconfig, you can see a list of programs that start automatically when the computer boots up. This allows you to identify any unnecessary programs that may be slowing down the computer's startup process. By disabling or removing these programs from the start-up menu, you can improve the computer's boot time and overall performance.
46.
The FASTEST cache in a computer is:
Correct Answer
A. L1.
Explanation
The L1 cache is the fastest cache in a computer. It is located closest to the CPU, providing quick access to frequently used data and instructions. L1 cache has a smaller capacity compared to higher-level caches like L2 and L3, but its proximity to the CPU allows for faster retrieval of data, resulting in reduced latency and improved overall system performance.
47.
Which of the following is used to list all of the hops from a starting point to a final destination?
Correct Answer
A. Tracert
Explanation
Tracert is used to list all of the hops from a starting point to a final destination. It is a command-line tool that traces the route taken by packets across an IP network. By sending a series of ICMP Echo Request messages with varying Time-To-Live (TTL) values, tracert determines the path that packets take to reach the final destination. It provides detailed information about each hop, including the IP address, hostname, and response time.
48.
Which of the following commands is used to obtain an IP address from the DHCP server?
Correct Answer
A. Ipconfig/renew
Explanation
The command "ipconfig/renew" is used to obtain an IP address from the DHCP server. This command is specifically used to renew the IP address lease from the DHCP server. DHCP (Dynamic Host Configuration Protocol) is a network protocol that automatically assigns IP addresses to devices on a network. By using the "ipconfig/renew" command, the device sends a request to the DHCP server to renew its IP address lease, allowing it to obtain a new IP address if necessary.
49.
1024 Gb are... ?
Correct Answer
D. 1 Tb
Explanation
1024 Gb is equal to 1 Tb. In computer storage, data is often measured in binary units, where 1 kilobyte (Kb) is equal to 1024 bytes, 1 megabyte (Mb) is equal to 1024 kilobytes, and so on. Therefore, when converting from Gb to Tb, we divide by 1024 to get the equivalent value. In this case, 1024 Gb divided by 1024 equals 1 Tb.
50.
What is a south bridge fuction? (choose all relevant)
Correct Answer(s)
B. Usb management
C. HDD communications
D. Bios
Explanation
The South Bridge is a chip on the motherboard that handles various functions. USB management refers to the South Bridge's ability to control USB ports and devices connected to them. HDD communications involve the South Bridge's role in managing data transfer between the motherboard and hard drives. BIOS, which stands for Basic Input/Output System, is also handled by the South Bridge. It is responsible for initializing hardware components during the boot process. Therefore, the correct answer includes USB management, HDD communications, and BIOS as relevant functions of the South Bridge.