OA Exams
What does the northbridge chipset typically connect to?
A) Hard drives
B) CPU and RAM
C) Keyboard and mouse
D) USB ports
Correct Answer: B) CPU and RAM
Explanation: The northbridge chipset handles communication between the CPU, RAM, and sometimes the GPU.
What component provides additional cooling to prevent overheating?
A) Hard drive
B) CPU fan
C) RAM
D) USB port
Correct Answer: B) CPU fan
Explanation: The CPU fan helps cool the processor to prevent overheating during intensive tasks.
What is the advantage of using dual-channel memory?
A) Doubles the storage capacity
B) Increases data transfer speed between RAM and CPU
C) Reduces CPU heat
D) Uses less power
Correct Answer: B) Increases data transfer speed between RAM and CPU
Explanation: Dual-channel memory increases memory bandwidth, allowing for faster data transfer between RAM and the CPU.
What is the function of the heat sink in a computer system?
A) Store energy
B) Transfer heat away from components
C) Provide power
D) Enhance network speed
Correct Answer: B) Transfer heat away from components
Explanation: The heat sink transfers heat away from components like the CPU to keep them cool.
What is the purpose of a DIMM slot?
A) Install RAM modules
B) Connect hard drives
C) Install GPUs
D) Provide power
Correct Answer: A) Install RAM modules
Explanation: DIMM slots are used to install RAM (memory) modules on the motherboard.
Which component stores data and instructions for quick access by the CPU?
A) SSD
B) Cache memory
D) GPU
Correct Answer: B) Cache memory
Explanation: Cache memory stores frequently used data and instructions to speed up access by the CPU.
What is the typical purpose of a GPU in a computer system?
A) Manage data storage
B) Execute network protocols
C) Render video and images
D) Control memory allocation
Correct Answer: C) Render video and images
Explanation: The GPU (Graphics Processing Unit) is responsible for rendering video and images in a computer.
What is the purpose of a power supply unit (PSU)?
A) Provide data storage
B) Supply DC power to computer components
C) Manage network connections
D) Boost CPU speed
Correct Answer: B) Supply DC power to computer components
Explanation: The PSU converts AC power from a wall outlet into DC power to run internal computer components.
What component is responsible for increasing the speed of frequently accessed data?
C) USB drive
Explanation: Cache memory stores frequently accessed data, allowing the CPU to retrieve it quickly.
What does RAID 1 provide?
A) Data striping without redundancy
B) Mirroring for redundancy
C) Faster read speeds
D) Error correction
Correct Answer: B) Mirroring for redundancy
Explanation: RAID 1 mirrors data across two or more drives to provide redundancy and fault tolerance.