101. What is the primary purpose of a GPU in a computer system?
- a) Rendering graphics and images
- b) Storing operating system files
- c) Managing network connections
- d) Processing audio signals
Answer: A - GPUs (Graphics Processing Units) specialize in parallel processing for visual computations.
102. Which of these is a characteristic of a solid-state drive (SSD) compared to a hard disk drive (HDD)?
- a) No moving parts
- b) Higher capacity per dollar
- c) Slower read/write speeds
- d) Better for long-term archival storage
Answer: A - SSDs use flash memory, making them more durable and faster than mechanical HDDs.
103. What is the function of the Northbridge in a traditional chipset architecture?
- a) Handles high-speed communication between CPU, RAM, and GPU
- b) Manages USB and SATA connections
- c) Controls power distribution
- d) Processes audio signals
Answer: A - The Northbridge was responsible for memory and graphics bus control in older systems.
104. Which type of memory is typically used for CPU cache?
- a) SRAM (Static RAM)
- b) DRAM (Dynamic RAM)
- c) ROM (Read-Only Memory)
- d) Flash Memory
Answer: A - SRAM is faster and more expensive, making it ideal for CPU cache memory.
105. What does the term "form factor" refer to in computer hardware?
- a) Physical size and layout specifications
- b) Processing speed of components
- c) Color and aesthetic design
- d) Power consumption rating
Answer: A - Form factor defines dimensions and mounting patterns (e.g., ATX, ITX for motherboards).
106. Which of these is a function of an operating system's device manager?
- a) View and update hardware drivers
- b) Create and format partitions
- c) Compress files and folders
- d) Scan for viruses
Answer: A - Device Manager allows users to control hardware components and their drivers.
107. What is the purpose of thermal paste in a computer system?
- a) Improves heat transfer between CPU and heatsink
- b) Protects against electrical shorts
- c) Acts as an adhesive for components
- d) Reduces electromagnetic interference
Answer: A - Thermal paste fills microscopic gaps to enhance thermal conductivity.
108. Which of these is a characteristic of ECC RAM?
- a) Detects and corrects memory errors
- b) Faster than non-ECC RAM
- c) Less expensive than standard RAM
- d) Used only in gaming PCs
Answer: A - ECC (Error-Correcting Code) RAM is used in servers/workstations for reliability.
109. What is the primary function of a PSU (Power Supply Unit)?
- a) Converts AC to DC power for components
- b) Manages CPU operations
- c) Stores temporary data
- d) Controls network traffic
Answer: A - PSUs provide stable DC power at various voltages (3.3V, 5V, 12V).
110. Which interface is commonly used for connecting external graphics cards?
- a) PCIe (Peripheral Component Interconnect Express)
- b) SATA (Serial ATA)
- c) USB (Universal Serial Bus)
- d) HDMI (High-Definition Multimedia Interface)
Answer: A - PCIe slots provide high bandwidth needed for GPUs (x16 lanes).
111. What is the purpose of the Windows Registry?
- a) Stores system and application configuration settings
- b) Manages file storage on hard drives
- c) Controls internet connection speeds
- d) Acts as a temporary memory cache
Answer: A - The Registry is a hierarchical database for OS and program settings.
112. Which of these is a feature of Thunderbolt 3 technology?
- a) Supports data transfer, video output, and power delivery
- b) Slower than USB 3.0
- c) Uses a proprietary connector
- d) Limited to 10Gbps bandwidth
Answer: A - Thunderbolt 3 offers 40Gbps speeds and uses USB-C connectors.
113. What is the purpose of a CMOS battery on a motherboard?
- a) Maintains BIOS settings and system clock
- b) Powers the CPU during operation
- c) Provides backup power during outages
- d) Controls fan speeds
Answer: A - The CMOS battery preserves BIOS/UEFI settings when the system is off.
114. Which of these is a characteristic of a 64-bit operating system?
- a) Can address more than 4GB of RAM
- b) Only runs 32-bit applications
- c) Requires less storage space
- d) Doesn't support multi-core processors
Answer: A - 64-bit systems can theoretically address up to 16 exabytes of memory.
115. What is the function of a QR code in computing?
- a) Stores information in a machine-readable format
- b) Encrypts sensitive data
- c) Boosts wireless signals
- d) Acts as a security firewall
Answer: A - QR codes can store URLs, text, or other data for quick scanning.
116. Which component is responsible for managing virtual memory in an OS?
- a) Memory Management Unit (MMU)
- b) Arithmetic Logic Unit (ALU)
- c) Graphics Processing Unit (GPU)
- d) Power Supply Unit (PSU)
Answer: A - The MMU handles address translation between physical and virtual memory.
117. What is the purpose of a checksum in data transmission?
- a) Verifies data integrity
- b) Compresses files
- c) Encrypts sensitive information
- d) Increases transmission speed
Answer: A - Checksums detect errors by comparing hash values before/after transfer.
118. Which of these is a characteristic of cloud computing?
- a) On-demand resource availability
- b) Requires physical hardware ownership
- c) Limited to local networks
- d) Higher upfront costs than traditional IT
Answer: A - Cloud services provide scalable resources with pay-as-you-go models.
119. What is the function of a transistor in a CPU?
- a) Acts as a switch/amplifier for electronic signals
- b) Stores permanent data
- c) Converts sound to digital signals
- d) Powers the motherboard
Answer: A - Transistors form logic gates (millions/billions in modern CPUs).
120. Which of these is a feature of IPv6 compared to IPv4?
- a) Larger address space
- b) Shorter addresses
- c) Less secure
- d) No support for multicast
Answer: A - IPv6 uses 128-bit addresses (3.4×10³⁸ addresses) vs. IPv4's 32-bit.