1.
The software used to drive microprocessor-based systems is called:
Correct Answer
A. Assembly Language Programs
Explanation
Assembly language programs are the software used to drive microprocessor-based systems. Assembly language is a low-level programming language that is specific to a particular microprocessor. It uses mnemonic codes to represent machine instructions, making it easier for programmers to understand and write code for the microprocessor. Assembly language programs are converted into machine code through an assembler, which can then be executed by the microprocessor. Firmware refers to software that is embedded into a hardware device, while BASIC Interpreter Instructions and Flowchart Instructions are not specific to microprocessor-based systems.
2.
A microprocessor unit, a memory unit, and an input/output unit form a:
Correct Answer
C. Microcomputer
Explanation
A microcomputer is formed by the combination of a microprocessor unit, a memory unit, and an input/output unit. The microprocessor unit is responsible for executing instructions and performing calculations, the memory unit stores data and instructions, and the input/output unit allows communication between the microcomputer and external devices. Therefore, a microcomputer is the correct answer as it encompasses all three components.
3.
Index hole is related to?
Correct Answer
D. CPU
Explanation
The index hole is related to the CPU. In computer systems, the index hole is a physical hole or notch on the edge of a punched card or paper tape that is used to indicate the start of a new record or block of data. The CPU uses the index hole to detect the beginning of a new set of data and process it accordingly. This helps in organizing and reading data from punched cards or paper tapes efficiently.
4.
Secondry memory is also know as?
Correct Answer
A. Auxiliary memory
Explanation
Secondary memory is another term used to refer to auxiliary memory. It is a type of storage device that is external to the computer's main memory (primary memory). Examples of secondary memory include hard disk drives, solid-state drives, and optical drives. Virtual memory, on the other hand, is a technique used by the operating system to extend the computer's main memory by using disk space. Therefore, the correct answer is "Auxiliary memory."
5.
It holds the address of the active memory?
Correct Answer
A. MAR
Explanation
The Memory Address Register (MAR) holds the address of the active memory location. It is responsible for storing the address of the memory location that needs to be accessed or written to. The MAR is an essential component in the memory management process, as it allows the processor to locate and retrieve data from the correct memory location.
6.
In latest generation computers, the instructions are executed
Correct Answer
C. Both sequentially and parallel
Explanation
In the latest generation computers, instructions are executed both sequentially and in parallel. This means that some instructions are executed one after the other in a sequential manner, while other instructions are executed simultaneously in parallel. This combination of sequential and parallel execution allows for efficient processing and utilization of the computer's resources, resulting in faster and more effective performance.
7.
Which printer is very commonly used for desktop publishing?
Correct Answer
A. Laser printer
Explanation
The laser printer is commonly used for desktop publishing because it offers high-quality printing with sharp and precise text and graphics. It uses a laser beam to create an image on a drum, which is then transferred to the paper using toner. Laser printers are fast, efficient, and produce professional-looking documents, making them the preferred choice for desktop publishing tasks.
8.
Which of the following will happen when data is entered into a memory location?
Correct Answer
C. It will erase the previous content
Explanation
When data is entered into a memory location, it will erase the previous content. This means that the new data will replace the existing data in that memory location.
9.
____ is a simple Application layer protocol used to synchronize the clocks of computers on a network.
Correct Answer
B. NTP
Explanation
NTP (Network Time Protocol) is a simple Application layer protocol used to synchronize the clocks of computers on a network. It allows computers to maintain accurate time by querying and adjusting their clocks with reference to a reliable time source. NTP uses a hierarchical system of time servers to distribute time information across the network, ensuring that all devices have synchronized clocks. By using NTP, organizations can ensure that their systems operate with accurate and consistent time, which is crucial for various network operations, security protocols, and time-sensitive applications.
10.
A ____ is a repeater with more than one output port
Correct Answer
C. hub
Explanation
A hub is a repeater with more than one output port. A hub is a networking device that allows multiple devices to connect to a network and share data. It receives data packets from one port and broadcasts them to all other ports, allowing all connected devices to receive the data. Therefore, a hub acts as a repeater by amplifying and transmitting the data to multiple output ports.
11.
____ are combinations of networking hardware and software that connect two dissimilar kinds of networks.
Correct Answer
C. Gateways
Explanation
Gateways are combinations of networking hardware and software that connect two dissimilar kinds of networks. Unlike routers and switches, which primarily handle the routing and switching of data within a network, gateways are specifically designed to facilitate communication between different types of networks. They serve as an interface between two networks with different protocols, allowing them to exchange information and enabling seamless connectivity. Gateways are essential for connecting networks with varying technologies, such as connecting a local area network (LAN) to a wide area network (WAN).
12.
A physical topology ____.
Correct Answer
B. Depicts a network in broad scope
Explanation
A physical topology refers to the physical layout or arrangement of devices in a network. It describes how devices are connected to each other and the overall structure of the network. By depicting a network in broad scope, a physical topology provides a high-level view of how devices are interconnected, without going into specific details about device types or protocols used. It helps in understanding the overall structure and layout of the network, which is essential for network planning and troubleshooting.
13.
The most common logical topologies are ____ and ring.
Correct Answer
A. Bus
Explanation
The most common logical topologies are bus and ring. A bus topology is a network layout where all devices are connected to a central cable called a bus. Each device on the network can communicate directly with any other device. In a ring topology, all devices are connected in a closed loop, with each device connected to two neighboring devices. Data travels in one direction around the ring, passing through each device until it reaches its destination.
14.
NICs contain a(n) ____ which transmits and receives data signals.
Correct Answer
C. Data transceiver
Explanation
NICs (Network Interface Cards) are hardware devices that allow computers to connect to a network. They contain a data transceiver, which is responsible for transmitting and receiving data signals between the computer and the network. This allows the computer to send and receive data over the network, enabling communication with other devices and accessing resources on the network. The data transceiver acts as a bridge between the computer and the network, converting data signals into a format that can be transmitted over the network and vice versa.
15.
TCP is a(n)___ sub protocol.
Correct Answer
C. Connection-oriented
Explanation
TCP (Transmission Control Protocol) is a connection-oriented sub protocol. This means that it establishes a reliable and ordered connection between two devices before transmitting data. TCP ensures that all packets are received in the correct order and any lost or corrupted data is retransmitted. It also manages flow control to prevent overwhelming the receiver with too much data at once. This connection-oriented nature of TCP makes it suitable for applications that require a reliable and error-free data transfer, such as web browsing, file transfers, and email communication.
16.
Traditional switches operate at the ____ layer of the OSI model.
Correct Answer
B. Data link
Explanation
Traditional switches operate at the data link layer of the OSI model. The data link layer is responsible for the reliable transfer of data between adjacent network nodes over a physical link. Switches operate at this layer by examining the data link layer addresses (MAC addresses) in incoming frames and forwarding them to the appropriate destination based on these addresses. They use this information to build and maintain a MAC address table, allowing for efficient and accurate forwarding of data within a local area network.
17.
The sub protocol that enables TCP/IP to internetwork - that is, to traverse more than one LAN segment and more than one type of network throughout a router is ____
Correct Answer
D. IP
Explanation
The correct answer is IP. IP (Internet Protocol) is the sub protocol that enables TCP/IP to internetwork. It allows TCP/IP to traverse multiple LAN segments and different types of networks through a router. TCP/IP uses IP for addressing and routing packets across different networks, ensuring that data reaches its intended destination. ICMP (Internet Control Message Protocol) is used for error reporting and diagnostic functions, UDP (User Datagram Protocol) is a connectionless protocol used for sending datagrams, and TCP (Transmission Control Protocol) is a connection-oriented protocol used for reliable and ordered delivery of data.
18.
By far, the most popular expansion board NIC today is one that uses a(n) ____ bus.
Correct Answer
B. PCIe
Explanation
The correct answer is PCIe. PCIe stands for Peripheral Component Interconnect Express, which is a high-speed serial computer expansion bus standard. It is currently the most popular expansion board NIC (Network Interface Card) because it offers faster data transfer speeds compared to other bus standards like ISA or ExpressCard. PCIe provides improved performance and scalability, making it the preferred choice for modern computer systems.
19.
To eliminate the possibility of a broadcast storm, switches and bridges implement the ____.
Correct Answer
B. STP (Spanning Tree Protocol)
Explanation
Switches and bridges implement the Spanning Tree Protocol (STP) to eliminate the possibility of a broadcast storm. A broadcast storm occurs when broadcast packets are continuously forwarded and flooded throughout a network, causing network congestion and performance issues. STP prevents this by creating a loop-free topology and blocking redundant paths, ensuring that there is only one active path between any two network devices. This helps to maintain network stability and prevent the excessive propagation of broadcast packets.
20.
In IPv4 addressing, a node with an IP address of 168.34.88.29 belongs to a Class ____ network.
Correct Answer
B. B
Explanation
A node with an IP address of 168.34.88.29 belongs to a Class B network. This is because in IPv4 addressing, the first octet of the IP address determines the class of the network. In this case, the first octet is 168, which falls within the range of 128-191, indicating a Class B network.
21.
The default subnet mask for a Class B network is ____.
Correct Answer
B. 255.255.0.0
Explanation
The default subnet mask for a Class B network is 255.255.0.0. In Class B networks, the first two octets are used to identify the network, while the last two octets are used to identify the hosts. The subnet mask 255.255.0.0 allows for a larger number of hosts compared to the other options.
22.
On an Ethenet network, a(n) ____ is the portion of a network in which collisions occur if two nodes transmit data at the same time.
Correct Answer
A. Collision domain
Explanation
On an Ethernet network, a collision domain is the portion of the network where collisions occur if two nodes transmit data at the same time. In other words, when multiple devices on the network try to send data simultaneously, a collision can occur, leading to data loss and decreased network performance. By dividing the network into collision domains, the chances of collisions are reduced, allowing for more efficient data transmission.
23.
A ____ is a multiport connectivity device that directs data between nodes on a network
Correct Answer
C. Router
Explanation
A router is a multiport connectivity device that directs data between nodes on a network. Unlike a switch or bridge, which operate at the data link layer of the OSI model and only forward data within a local network, a router operates at the network layer and can forward data between different networks. A gateway, on the other hand, is a device that connects two different types of networks, such as a local network and the internet. Therefore, a router is the correct answer as it is specifically designed to direct data between nodes on a network.
24.
In IPv4 addressing, each IP address is a unique ____ number
Correct Answer
B. 32-bit
Explanation
In IPv4 addressing, each IP address is a unique 32-bit number. This means that an IPv4 address consists of four sets of 8 bits each, separated by periods. The 32-bit address space allows for a total of approximately 4.3 billion unique addresses, which are used to identify devices on a network.
25.
From what location are the 1st computer instructions available on boot up?
Correct Answer
A. ROM BIOS
Explanation
The 1st computer instructions are available on boot up from ROM BIOS. ROM BIOS, or Read-Only Memory Basic Input/Output System, is a firmware that is stored on a chip on the computer's motherboard. It contains the initial instructions that the computer needs to start up and load the operating system. These instructions include the Power-On Self-Test (POST) and the initialization of hardware components. Therefore, ROM BIOS is responsible for the first set of instructions executed by the computer during the boot up process.
26.
What could cause a fixed disk error.
Correct Answer
D. Incorrect CMOS settings
Explanation
Incorrect CMOS settings can cause a fixed disk error. The CMOS (Complementary Metal-Oxide-Semiconductor) settings store important information about the computer's hardware configuration. If these settings are not properly configured, it can lead to errors when accessing the fixed disk. This could include issues such as the disk not being recognized or being unable to read/write data. Therefore, incorrect CMOS settings can be a potential cause for a fixed disk error.
27.
With respect to a network interface card, the term 10/100 refers to
Correct Answer
C. Megabits per seconds
Explanation
The term 10/100 in relation to a network interface card refers to the maximum speed at which data can be transmitted and received, measured in megabits per second (Mbps). It indicates that the network interface card is capable of supporting both 10 Mbps and 100 Mbps speeds, allowing for compatibility with different network speeds.
28.
Which Motherboard form factor uses one 20 pin connector
Correct Answer
A. ATX
Explanation
The correct answer is ATX. ATX is a motherboard form factor that uses one 20 pin connector. This form factor was introduced by Intel in 1995 and has become the most common form factor for desktop computers. It provides a standardized layout and power connections, making it easier for manufacturers to produce compatible components. AT and BABY AT are older form factors that use different power connectors and are not as commonly used today. Therefore, the correct answer is ATX.
29.
A hard disk is divided into tracks which are further subdivided into:
Correct Answer
B. Sectors
Explanation
A hard disk is divided into tracks, which are circular paths on the disk's surface. Each track is further divided into sectors, which are small, fixed-size units of storage. Sectors are the basic units for reading and writing data on a hard disk. Clusters, on the other hand, refer to a group of sectors that are allocated together to store a file. Vectors are not relevant to the division of a hard disk. Heads, though important components of a hard disk, are not involved in the division of tracks or sectors.
30.
The 34-pin connection on an I/O card is for?
Correct Answer
A. Floppy drive
Explanation
The 34-pin connection on an I/O card is for a floppy drive. Floppy drives used to be a common storage device for computers, and they required a 34-pin connection to connect to the I/O card. This connection allowed the transfer of data between the floppy drive and the computer system. However, with the advancement of technology, floppy drives have become obsolete, and other storage devices like SCSI drives, IDE drives, and Zip drives have taken their place.
31.
Which standard govern parallel communications?
Correct Answer
D. IEEE 1284
Explanation
IEEE 1284 is the correct answer because it is the standard that governs parallel communications. This standard defines the electrical and physical specifications for parallel ports and cables used for connecting devices such as printers to computers. It specifies the signaling, data transfer rates, protocols, and connectors used in parallel communications. RS232 and RS-232a are standards for serial communications, while CAT 5 is a standard for Ethernet networking.
32.
Resistance is measured in ?
Correct Answer
D. Ohms
Explanation
Resistance is a measure of how much a material opposes the flow of electric current. It is measured in ohms, which is represented by the symbol Ω. Ohms is the correct answer because it is the unit used to quantify the amount of resistance in a circuit. Volts, amps, and watts are all units of measurement related to voltage, current, and power, respectively, but they are not used to directly measure resistance.
33.
Which provides the fastest access to large video files?
Correct Answer
C. SCSI hard drives
Explanation
SCSI hard drives provide the fastest access to large video files compared to the other options listed. SCSI (Small Computer System Interface) is a high-performance interface that allows for faster data transfer rates and lower latency compared to IDE and EIDE hard drives. This makes SCSI hard drives ideal for handling large video files, which require quick access and retrieval. Optical drives, on the other hand, are not as fast as SCSI hard drives when it comes to accessing large video files.
34.
RS-232 is a standard that applies to:
Correct Answer
A. serial ports
Explanation
RS-232 is a standard that applies to serial ports. Serial ports are used to connect devices and transfer data one bit at a time, making them suitable for applications that require a slower data transfer rate but longer cable distances. RS-232 defines the electrical and mechanical characteristics of the interface, allowing devices to communicate and exchange data reliably. This standard is commonly used in computer systems, telecommunications equipment, and other devices that require serial communication.
35.
You just installed a new IDE hard drive, but your system BIOS will not recognize the new drive, what should you check first.
Correct Answer
B. jumpers on the hard drive
Explanation
When installing a new IDE hard drive, the first thing to check is the jumpers on the hard drive. Jumpers are small connectors that determine the drive's settings, such as whether it is the primary or secondary drive. If the jumpers are not set correctly, the BIOS may not recognize the new drive. By checking and adjusting the jumpers as needed, the system should be able to recognize the new hard drive.
36.
Which of the memories below is often used in a typical computer operation?
Correct Answer
A. RAM
Explanation
RAM, or Random Access Memory, is often used in a typical computer operation. It is a type of computer memory that allows data to be read from and written to quickly. RAM is volatile, meaning that its contents are lost when the computer is powered off or restarted. It is used by the computer's operating system and applications to store data that is being actively used, providing fast access to this data for efficient processing.
37.
Data (information) is stored in computers as
Correct Answer
A. Files
Explanation
Data is stored in computers as files. Files are the basic units of storage in a computer system, where data is organized and stored in a structured format. They can contain various types of information such as text, images, videos, and more. Files are stored in directories, which help in organizing and managing the data on a computer. Floppies were a common storage medium in the past, but they are not commonly used anymore. "Matter" is not a correct option as it does not accurately represent the way data is stored in computers.
38.
Floppy Disk Drives were originally designed by
Correct Answer
B. Sony
Explanation
Sony is the correct answer because they were one of the major contributors to the development of floppy disk drives. In the early 1980s, Sony introduced the 3.5-inch floppy disk, which became the most popular format for floppy disks. Sony's innovative design and manufacturing capabilities played a significant role in making floppy disk drives a widely used storage medium. While other companies like IBM and Panasonic also played a part in the development of floppy disk drives, Sony's contribution was particularly significant. Samsung, on the other hand, is not known for its involvement in the development of floppy disk drives.
39.
Programs stored in ROM are called ___
Correct Answer
B. Firmware
Explanation
Firmware refers to programs or software that are permanently stored in read-only memory (ROM). Unlike software, which can be modified or deleted, firmware is typically not easily changed or updated. It is embedded in hardware devices and provides the necessary instructions for the device to function properly. Therefore, the correct answer is firmware.
40.
Computer software includes ____
Correct Answer
D. All of these
Explanation
Computer software includes operating system programs, application programs, and packaged programs. Operating system programs are the software that manage computer hardware and provide services for other software. Application programs are software designed for specific tasks or purposes, such as word processing or graphic design. Packaged programs are commercially available software that is sold as a product. Therefore, the correct answer is "All of these" as computer software includes all of these types of programs.
41.
IC are classified on the basis of ___
Correct Answer
C. Number of transistors
Explanation
ICs (Integrated Circuits) are classified on the basis of the number of transistors they contain. The number of transistors in an IC determines its complexity and functionality. ICs with a higher number of transistors can perform more complex tasks and have more advanced features. Therefore, the number of transistors is a crucial factor in categorizing ICs and determining their capabilities.
42.
A source program is
Correct Answer
B. A program to be translated into machine language
Explanation
A source program refers to a program that is written in a high-level programming language and is intended to be translated into machine language. It is the original code written by a programmer, which needs to be compiled or interpreted into a form that can be understood and executed by a computer. The source program is not written in machine language directly, but it serves as the input for the translation process to convert it into machine language instructions that the computer can execute.
43.
What is the name of the series of Laptop computers manufactured by IBM called?
Correct Answer
B. ThinkPad
Explanation
ThinkPad is the correct answer because it is the name of the series of laptop computers manufactured by IBM. The ThinkPad series is well-known for its durability, reliability, and high performance. It has been a popular choice among professionals and business users for many years.
44.
Direct X is a _____
Correct Answer
B. Software that drives GrapHic hardware
Explanation
DirectX is a software technology developed by Microsoft that serves as an interface between the operating system and the computer's graphics hardware. It provides a set of APIs (Application Programming Interfaces) that allow developers to access and utilize the capabilities of the graphics hardware, such as rendering 2D and 3D graphics, handling multimedia tasks, and managing input devices. Therefore, the correct answer is "Software that drives Graphic hardware."
45.
What are the units used to count the speed of a printer?
Correct Answer
D. BIT
46.
Which of the following cables can transmit data at high speeds?
Correct Answer
B. Optic Fiber Cable
Explanation
Optic Fiber Cable can transmit data at high speeds because it uses light signals to transmit data. Unlike other cables, it uses glass or plastic fibers to carry the data signals, which allows for faster transmission over longer distances. The light signals can travel at a much higher speed compared to the electrical signals used in other cables, making Optic Fiber Cable ideal for high-speed data transmission.
47.
What is the name of the software that allows us to browse through web pages called?
Correct Answer
A. Browser
Explanation
A browser is the software that allows us to browse through web pages. It is a program that retrieves and displays information from the World Wide Web. Browsers interpret and render HTML code, allowing users to navigate through websites, view images, play videos, and interact with web content. Popular examples of browsers include Google Chrome, Mozilla Firefox, Microsoft Edge, and Safari.
48.
Which of the following was not an improvement of Windows 7 over Windows Vista?
Correct Answer
D. Bit Locker
Explanation
Bit Locker was not an improvement of Windows 7 over Windows Vista. Bit Locker is a feature that was introduced in Windows Vista and was also available in Windows 7. It is a disk encryption tool that allows users to encrypt their entire hard drive to protect their data. Therefore, it cannot be considered as an improvement of Windows 7 over Windows Vista since it was already present in the previous version.
49.
Which edition of Windows 7 is the minimum needed to fully support Home Groups and DVD Video Playback and authoring?
Correct Answer
B. Windows 7 Home Premium
Explanation
Windows 7 Home Premium is the minimum edition needed to fully support Home Groups and DVD Video Playback and authoring. This edition includes all the necessary features and functionalities to enable Home Groups, which allows users to easily share files, folders, and printers with other computers on the same network. Additionally, Windows 7 Home Premium includes Windows Media Center, which supports DVD Video Playback and authoring, allowing users to play and create DVDs. Windows 7 Home Basic does not include these features, while Windows 7 Professional and Windows 7 Enterprise offer additional functionalities that are not necessary for fully supporting Home Groups and DVD Video Playback and authoring.
50.
The area where the clock and a few select system icons is located on the taskbar is called what?
Correct Answer
B. The Notification Area
Explanation
The area where the clock and a few select system icons are located on the taskbar is called the Notification Area. This is where various notifications and alerts are displayed, such as system updates, network connectivity, and battery status. It provides quick access to important system functions and allows users to monitor and manage their system's status.