IT Essentials Chapters 1-10
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Questions and Answers
- 1.
What is the special type of memory called when the CPU is executing one step of the programme and the remaining instructions are stored nearby?
- A.
Reduced Instruction Set Computer
- B.
Cache
- C.
BTX
- D.
Parity
- E.
BIOS
Correct Answer
B. CacheExplanation
Cache is a special type of memory that stores frequently accessed data and instructions near the CPU. It helps to improve the performance of the CPU by reducing the time it takes to access data from the main memory. When the CPU is executing one step of a program, the remaining instructions are stored in the cache, allowing for faster retrieval and execution. This helps to reduce latency and improve overall system performance.Rate this question:
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- 2.
The Motherboard accomodates the ......, BIOS Chip and also the Heat/sink fan assembly
Correct Answer
RAM sockets ports
random access memory
Random Access Memory
ramExplanation
The correct answer is RAM. The motherboard accommodates the RAM, which stands for Random Access Memory. RAM is a type of computer memory that allows data to be read from and written to quickly. It is an essential component of a computer system as it stores data that is currently being used by the computer's operating system and applications. The motherboard also accommodates other components such as sockets and ports, but in this context, the specific component being referred to is RAM.Rate this question:
- 3.
The CPU must be inserted into the Motherboard with ..................
Correct Answer
Zero Insertion Force
zero insertion force
ZIF
zifExplanation
The CPU must be inserted into the motherboard using zero insertion force (ZIF) to avoid damaging the delicate pins on the CPU and the socket on the motherboard. Zero insertion force means that no pressure or force is required to insert the CPU, as it can be easily placed into the socket without any resistance. This ensures a safe and secure connection between the CPU and the motherboard, preventing any potential damage.Rate this question:
- 4.
What can be destructive to the computer?
- A.
Power Surge
- B.
Standby mode
- C.
Electrostatic Discharge
- D.
Brownout
- E.
Loopback adapter
Correct Answer
C. Electrostatic DischargeExplanation
Electrostatic discharge can be destructive to a computer because it is a sudden flow of electricity between two objects with different electrical charges. When this discharge occurs, it can damage or destroy computer components such as the motherboard, memory, or processor. This can lead to system crashes, data loss, or complete hardware failure. It is important to take precautions such as using anti-static wristbands or mats to prevent electrostatic discharge when working with computer components.Rate this question:
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- 5.
Name one disk management tool?
- A.
Firewall
- B.
Antivirus software
- C.
GUI
- D.
Format
- E.
Loopback adapter
Correct Answer
D. FormatExplanation
Format is a disk management tool that allows users to prepare a storage device for use by organizing, partitioning, and initializing it. This tool erases all data on the disk and sets up a file system, making it ready to store files and folders. It is commonly used when installing a new operating system or when wanting to wipe a disk clean. By selecting the format option, users can customize the disk's file system, such as FAT32 or NTFS, depending on their needs and compatibility.Rate this question:
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- 6.
Adapter Cards are installed to add functionality to a computer. Adapter cards must be.......... with the expansion slot
Correct Answer
compatible
CompatibleExplanation
Adapter cards are installed in a computer to enhance its functionality. These cards need to be compatible with the expansion slot in order to be properly installed and function correctly. Compatibility ensures that the card is designed to work with the specific type of expansion slot, allowing for seamless integration and optimal performance.Rate this question:
- 7.
Which cable does the HDD connect to?
- A.
SATA
- B.
PATA
- C.
Floppy data cable
- D.
Berg Connector
- E.
Ethernet
Correct Answer(s)
A. SATA
B. PATAExplanation
The HDD (Hard Disk Drive) connects to either a SATA (Serial ATA) or a PATA (Parallel ATA) cable. SATA and PATA are both types of data cables used to connect storage devices like hard drives to a computer's motherboard. The Floppy data cable, Berg Connector, and Ethernet are not used to connect HDDs.Rate this question:
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- 8.
If the POST boots and stops, then user should access the ..........
Correct Answer(s)
BIOS
biosExplanation
If the POST (Power-On Self Test) successfully boots but stops afterwards, the user should access the BIOS (Basic Input/Output System). The BIOS is a firmware that is responsible for initializing the hardware components of the computer and providing the necessary instructions for the operating system to load. By accessing the BIOS, the user can make changes to the system configuration, such as adjusting boot order or enabling/disabling certain hardware components, which may help in resolving the issue causing the system to stop after booting.Rate this question:
- 9.
When you access the event viewer, you can access the following information
- A.
Event ID number
- B.
Device manager
- C.
Beep codes
- D.
Manufacturer FAQ's
- E.
Daye and time of the problem
Correct Answer
A. Event ID numberExplanation
When accessing the event viewer, one can view the event ID number. This number is a unique identifier assigned to each specific event that occurs on a computer system. It helps in tracking and troubleshooting various issues, such as system crashes, errors, warnings, and informational events. By analyzing the event ID number, users can gain insights into the cause and impact of the events and take appropriate actions to resolve any problems or errors.Rate this question:
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- 10.
Operating systems perform the following functions
- A.
Control hardware access
- B.
Manage files and folders
- C.
All mentioned
- D.
Provide a user interface
- E.
Manage applications
Correct Answer
C. All mentionedExplanation
Operating systems perform all of the mentioned functions. They control hardware access by managing the communication between software and hardware components. They also manage files and folders by organizing and storing data in a structured manner. Operating systems provide a user interface that allows users to interact with the computer system. Additionally, they manage applications by allocating system resources and facilitating the execution of programs. Therefore, all of the mentioned functions are performed by operating systems.Rate this question:
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- 11.
What is used in all modern operating systems? pick 3
- A.
Multiuser
- B.
Multitasking
- C.
Antivirus software
- D.
Command Line Interface
- E.
All above
Correct Answer(s)
A. Multiuser
B. Multitasking
D. Command Line InterfaceExplanation
All modern operating systems use multiuser functionality, allowing multiple users to access and use the system simultaneously. They also support multitasking, allowing multiple tasks or processes to run concurrently. Additionally, command line interfaces are used in modern operating systems to interact with the system through text-based commands. Therefore, the correct answer is multiuser, multitasking, and command line interface.Rate this question:
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- 12.
By typing in the command ............., the computer can remove a directory
Correct Answer(s)
RD
rdExplanation
The command "RD" or "rd" is used to remove or delete a directory in a computer. This command allows the user to delete a directory and all its contents, including files and subdirectories. By typing either "RD" or "rd" followed by the directory name, the computer will execute the command and remove the specified directory from the system.Rate this question:
- 13.
Apple MAC OS is a customised version of .........
Correct Answer(s)
UNIX
Linux
unix
linux
LINUXExplanation
Apple MAC OS is a customised version of UNIX and Linux. Apple's operating system, known as macOS, is built on a Unix-based foundation. This allows it to have a stable and secure architecture, similar to other Unix-based systems. Additionally, macOS incorporates certain elements from the Linux operating system, such as the use of the Terminal and support for open-source software. This combination of Unix and Linux influences makes macOS a unique and powerful operating system.Rate this question:
- 14.
Power management options of windows XP are: Pick 2
- A.
Hard drive
- B.
Shut down
- C.
Hibernate
- D.
CMOS
- E.
All of the above
Correct Answer(s)
B. Shut down
C. HibernateExplanation
The power management options of Windows XP include "Shut down" and "Hibernate". Shutting down the computer completely turns off all power to the system, while hibernating saves the current state of the computer to the hard drive and then powers off, allowing the user to resume their work later. The other options mentioned, such as "Hard drive" and "CMOS", are not power management options but rather components or settings related to the computer's hardware. Therefore, the correct answer is "Shut down" and "Hibernate".Rate this question:
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- 15.
To acces and configure the power setting on your computer ,which are kept via memory in the ROM because they can always be found on the computer even when you power off the computer, are start>....................>power options.
Correct Answer(s)
Control Panel
control panelExplanation
The correct answer is "Control Panel, control panel." The Control Panel is where you can access and configure various settings on your computer, including power options. These power settings are stored in the Read-Only Memory (ROM) of the computer, which allows them to be retained even when the computer is powered off. By going to the Control Panel, specifically the power options section, you can customize how your computer behaves when it comes to power management.Rate this question:
- 16.
The quality of printing is measured in....
- A.
Dpi
- B.
Mbps
- C.
Pixels
- D.
Ppm
- E.
Metres
Correct Answer
A. DpiExplanation
The quality of printing is measured in dpi (dots per inch). DPI refers to the number of dots that can be placed in a one-inch line. The higher the dpi, the more dots are used to create an image, resulting in a higher quality print with more detail and sharpness. Therefore, dpi is the correct unit of measurement for printing quality.Rate this question:
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- 17.
USB 2.0 can support ...... devices
Correct Answer
127Explanation
USB 2.0 can support up to 127 devices. This is because USB 2.0 uses a 7-bit addressing system, allowing for a maximum of 127 unique addresses. Each device connected to the USB 2.0 bus is assigned a unique address, and the bus can support up to this maximum number of devices.Rate this question:
- 18.
USB 2.0 has a transfer rate of ....
- A.
480bps
- B.
480Kbps
- C.
480Mbps
- D.
400 Kbps
- E.
400 Mbps
Correct Answer
C. 480MbpsExplanation
USB 2.0 has a transfer rate of 480Mbps. Mbps stands for megabits per second, which is a unit of data transfer speed. USB 2.0 is capable of transferring data at a maximum rate of 480 megabits per second. This high transfer rate allows for faster and more efficient data transfer between devices connected through USB 2.0 ports.Rate this question:
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- 19.
Switches are sometimes called ................
Correct Answer
multiport bridgesExplanation
Switches are sometimes called multiport bridges because they both operate at the data link layer of the network and serve a similar purpose of connecting multiple devices together. Like bridges, switches have multiple ports that allow them to receive and forward data packets to the appropriate destination device. They use MAC addresses to make forwarding decisions, ensuring that data is sent only to the intended recipient. Therefore, the term "multiport bridges" accurately describes switches and highlights their ability to efficiently connect multiple devices in a network.Rate this question:
- 20.
A switch maintains a table of the ................ for computers that are connected to each port
Correct Answer
MAC addresses
mac addresses
MAC
macExplanation
A switch maintains a table of the MAC addresses for computers that are connected to each port. MAC addresses are unique identifiers assigned to network interfaces, allowing the switch to determine which devices are connected to each port and efficiently route network traffic. By keeping track of the MAC addresses, the switch can forward incoming data packets to the appropriate destination device based on its MAC address. This helps in organizing and managing the network connections effectively.Rate this question:
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