Q91. What is the primary function of a modem in a computer network?
a) To manage internal storage
b) To provide power to network devices
c) To convert digital data to analog signals and vice versa for communication over phone lines
d) To enhance the graphics performance
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Correct Answer: c) To convert digital data to analog signals and vice versa for communication over phone lines
Explanation: A modem (modulator-demodulator) converts digital data from a computer into analog signals for transmission over phone lines or other analog communication systems. It also converts incoming analog signals back into digital data for the computer to process, enabling internet connectivity.
Q92. What is the function of the chipset on a motherboard?
a) To provide storage space
b) To manage data flow between the CPU, RAM, and peripherals
c) To control power supply to the computer
d) To enhance audio quality
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Correct Answer: b) To manage data flow between the CPU, RAM, and peripherals
Explanation: The chipset on a motherboard manages data flow between the CPU, RAM, and other peripherals. It controls communication and data exchange between these components, ensuring that they work together efficiently and effectively.
Q93. Which type of software is used to perform calculations and data analysis?
a) Spreadsheet software
b) Web browser
c) Media player
d) Text editor
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Correct Answer: a) Spreadsheet software
Explanation: Spreadsheet software, such as Microsoft Excel or Google Sheets, is used to perform calculations and data analysis. It provides tools for creating tables, charts, and formulas, making it suitable for organizing and analyzing numerical data.
Q94. Which device is primarily used to display visual output from a computer?
a) Printer
b) Monitor
c) Scanner
d) Keyboard
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Correct Answer: b) Monitor
Explanation: A monitor is the primary device used to display visual output from a computer. It shows the graphical user interface, applications, and content generated by the computer, allowing users to interact with the system and view results.
Q95. What is the purpose of a system update in a computer operating system?
a) To upgrade hardware components
b) To fix security vulnerabilities and improve system performance
c) To add new software applications
d) To change the computer’s physical appearance
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Correct Answer: b) To fix security vulnerabilities and improve system performance
Explanation: A system update in an operating system addresses security vulnerabilities, fixes bugs, and enhances system performance. Updates may include patches, improvements, and new features that help maintain the stability and security of the operating system.
Q96. What does the acronym ‘USB’ stand for?
a) Universal System Bus
b) Unified Serial Bus
c) Universal Serial Bus
d) United Storage Bus
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Correct Answer: c) Universal Serial Bus
Explanation: USB stands for Universal Serial Bus, a standard interface used to connect various peripherals to a computer. It supports data transfer and power supply to devices such as keyboards, mice, printers, and storage drives.
Q97. Which of the following is an example of a secondary storage device?
a) CPU
b) RAM
c) Hard disk drive
d) Cache memory
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Correct Answer: c) Hard disk drive
Explanation: A hard disk drive (HDD) is an example of a secondary storage device used for long-term data storage. It retains data even when the computer is powered off, unlike primary storage devices like RAM that are used for temporary data processing.
Q98. What is the main advantage of using an SSD over an HDD?
a) Higher storage capacity
b) Faster data access speed
c) Lower cost
d) More durability
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Correct Answer: b) Faster data access speed
Explanation: The main advantage of using an SSD (Solid-State Drive) over an HDD (Hard Disk Drive) is its faster data access speed. SSDs use flash memory, which allows for quicker read and write operations compared to the mechanical components of an HDD.
Q99. What type of port is commonly used for connecting external storage devices to a computer?
a) VGA port
b) HDMI port
c) USB port
d) Ethernet port
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Correct Answer: c) USB port
Explanation: The USB port is commonly used for connecting external storage devices, such as USB flash drives and external hard drives, to a computer. It provides both data transfer and power connections, making it a versatile and widely used interface.
Q100. Which of the following is an example of a peripheral device?
a) CPU
b) Motherboard
c) Printer
d) RAM
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Correct Answer: c) Printer
Explanation: A peripheral device is any external device that connects to a computer to add functionality or enable input/output operations. A printer is an example of a peripheral device used to produce physical copies of digital documents and images.