1.
Contiguous files are created by...
Correct Answer
B. Disk defragmenter
Explanation
Disk defragmenter is the correct answer because it is a tool that reorganizes the data on a computer's hard drive, making it more efficient and improving performance. When files are saved or deleted on a computer, they can become fragmented, meaning that different parts of the file are stored in different locations on the hard drive. Disk defragmenter brings all the fragmented parts of a file together and stores them in contiguous locations on the hard drive, making it easier and faster for the computer to access the file.
2.
What is the expected data rate of USB 2 interfaces?
Correct Answer
D. 480Mbps
Explanation
The expected data rate of USB 2 interfaces is 480Mbps. This is the correct answer because USB 2.0 has a maximum data transfer rate of 480 megabits per second.
3.
The ISO layer responsible for handling IP addresses is
Correct Answer
C. The network layer
Explanation
The network layer is responsible for handling IP addresses. This layer is responsible for routing and forwarding data packets across different networks. It assigns logical addresses (IP addresses) to devices and determines the best path for data transmission. The network layer also handles fragmentation and reassembly of packets, ensuring efficient and reliable delivery of data.
4.
On which of the following interfaces would you NOT expect to find a disc drive in a typical PC architecture:
Correct Answer
D. PCI
Explanation
PCI (Peripheral Component Interconnect) is a bus interface used for connecting peripheral devices to a computer's motherboard. It is not typically used for connecting disc drives in a PC architecture. SATA (Serial ATA), SCSI (Small Computer System Interface), and IDE (Integrated Drive Electronics) are all interfaces commonly used for connecting disc drives in a typical PC architecture.
5.
What is a very common symptom of the IDE cable for a floppy drive being connected upside down?
Correct Answer
B. Drive led is permanently lit
Explanation
When the IDE cable for a floppy drive is connected upside down, the drive led is permanently lit. This means that the light on the drive will remain on continuously, indicating that there is a problem with the connection. The incorrect orientation of the cable prevents the proper communication between the drive and the computer, resulting in the led staying lit without any variation.
6.
What is the default subnet mask for the IP address 201.120.120.10?
Correct Answer
A. 255.255.255.0
Explanation
The default subnet mask for the IP address 201.120.120.10 is 255.255.255.0. This is because the IP address falls within the range of a Class C network, which has a default subnet mask of 255.255.255.0.
7.
What is the purpose of a driver?
Correct Answer
B. Tells the operating system how to interact with the device
Explanation
A driver is a software component that enables the operating system to communicate and interact with a specific device. It provides the necessary instructions and protocols for the operating system to effectively control and utilize the device's functionalities. By telling the operating system how to interact with the device, the driver ensures seamless communication between the software and hardware components, allowing users to effectively utilize and control the device.
8.
The DOS command ipconfig/all reveals
Correct Answer
A. The current network configuration of the pc
Explanation
The DOS command ipconfig/all reveals the current network configuration of the PC. This command provides detailed information about the IP address, subnet mask, default gateway, DNS servers, and other network settings of the computer. It does not reveal the hardware configuration or the configuration of the web browser.
9.
What expansion bus types do most modern motherboards support?
Correct Answer
B. ISA, PCI, AGP
Explanation
Most modern motherboards support the expansion bus types ISA, PCI, and AGP. ISA (Industry Standard Architecture) is an older bus type that was commonly used in early PCs. PCI (Peripheral Component Interconnect) is a newer and faster bus type that replaced ISA. AGP (Accelerated Graphics Port) is a specialized bus type used specifically for connecting graphics cards. These three bus types are commonly supported on modern motherboards to provide compatibility with a wide range of expansion cards and devices.
10.
Which of the following should you NEVER attempt to service in the field?
Correct Answer
A. PSU
Explanation
PSU stands for Power Supply Unit, which is responsible for providing power to all the components in a computer. It is not recommended to attempt to service the PSU in the field because it involves working with high voltage electricity, which can be dangerous if not handled properly. It is always advisable to seek professional help or replace the PSU if there are any issues with it.
11.
What does ZIF stand for in relation to a CPU type?
Correct Answer
C. Zero insertion force
Explanation
ZIF stands for Zero insertion force. This term refers to a type of CPU socket that allows for easy installation and removal of a CPU chip. With a ZIF socket, the CPU can be inserted or removed without applying any force, reducing the risk of damaging the chip or the socket. This type of socket is commonly used in desktop computers and allows for quick and hassle-free CPU upgrades or replacements.
12.
IRQ lines ………
Correct Answer
B. Allow devices to interrupt the flow of programs in the CPU
Explanation
IRQ lines are used on modern motherboards and processors to allow devices to interrupt the flow of programs in the CPU. This means that when a device needs to communicate with the CPU, it can send an interrupt signal through the IRQ line, causing the CPU to temporarily pause its current task and handle the interrupt. This allows for efficient multitasking and ensures that important tasks are prioritized. The statement "All of the above" is correct because it encompasses the previous statements about IRQ lines being used on modern motherboards and processors and allowing devices to interrupt the flow of programs in the CPU.
13.
Which file extension does not apply to a library file used by an executable program?
Correct Answer
C. .exe
Explanation
The file extension .exe does not apply to a library file used by an executable program. The .exe extension is used for executable files, which are the files that can be directly run by the operating system. Library files, on the other hand, have extensions like .lib and .dll, which are used to store reusable code that can be shared by multiple programs. Therefore, the correct answer is .exe.
14.
A site licence allows the user to...
Correct Answer
B. Use the software covered by the licence on every machine on the specified site
Explanation
A site licence allows the user to use the software covered by the licence on every machine on the specified site. This means that the user is not limited to a single copy of the software, but can install and use it on multiple machines within the specified site. This provides flexibility and convenience for the user, as they can access and utilize the software on any machine within the site without any restrictions.
15.
The NTFS filing system can NOT be used by...
Correct Answer
A. Windows 95
Explanation
Windows 95 does not support the NTFS filing system. NTFS was introduced with Windows NT 3.1 and is not compatible with Windows 95. Windows 95 uses the FAT32 filing system instead.
16.
Which chip sits between the CPU and the RAM on a modern motherboard?
Correct Answer
B. Northbridge
Explanation
The Northbridge chip sits between the CPU and the RAM on a modern motherboard. It is responsible for handling the communication between the CPU and the RAM, as well as other high-speed devices such as the graphics card. The Northbridge chip plays a crucial role in ensuring efficient data transfer and overall system performance.
17.
What is the smallest storage access unit on an IDE hard drive?
Correct Answer
C. Sector
Explanation
The smallest storage access unit on an IDE hard drive is a sector. A sector is a subdivision of a track on a hard drive and is the basic unit of storage on the drive. Each sector typically holds a fixed amount of data, usually 512 bytes. The operating system and file system use sectors to organize and store data on the hard drive.
18.
A laser printer which starts to print smudgy vertical lines on the paper as well as the desired image is probably suffering from
Correct Answer
C. A failure to clean the drum properly
Explanation
If a laser printer starts to print smudgy vertical lines on the paper along with the desired image, it is likely suffering from a failure to clean the drum properly. The drum in a laser printer is responsible for transferring toner onto the paper, and if it is not cleaned properly, excess toner may remain on the drum's surface. This excess toner can then be transferred onto the paper, resulting in smudgy vertical lines.
19.
What interrupt is traditionally used by the Real Time Clock?
Correct Answer
A. IRQ 8
Explanation
The Real Time Clock (RTC) is traditionally connected to IRQ 8, which is an interrupt request line used by hardware devices to signal the CPU for attention. IRQ 8 is commonly used for time-related functions and is specifically designated for the RTC.
20.
AGP stands for …
Correct Answer
C. Accelerated grapHics port
Explanation
AGP stands for Accelerated Graphics Port. It is a high-speed point-to-point channel for attaching a graphics card to a computer's motherboard. The AGP interface provides a dedicated pathway for the graphics card to access the system memory, allowing for faster data transfer and improved graphics performance. This technology was commonly used in older computer systems to enhance graphics capabilities for gaming and multimedia applications.