Buses (Data, Address, Control) MCQs

1. Which bus is responsible for transferring data between components of a computer system?

(A) Address Bus

(B) Data Bus

(C) Control Bus

(D) Power Bus

2. What is the primary function of the address bus?

(A) To transfer data between components

(B) To provide power to components

(C) To control the timing of data transfers

(D) To carry addresses of data locations

3. Which bus line is used to signal which memory location or I/O device is being accessed?

(A) Data Bus

(B) Control Bus

(C) Address Bus

(D) Power Bus

4. Which bus carries signals that manage and synchronize the operations of the CPU and other components?

(A) Control Bus

(B) Address Bus

(C) Data Bus

(D) Power Bus

5. What type of bus is used to transmit data to and from memory and peripherals?

(A) Address Bus

(B) Data Bus

(C) Control Bus

(D) System Bus

6. Which bus is used to specify the address of the memory location or I/O device that the CPU wants to communicate with?

(A) Control Bus

(B) Power Bus

(C) Data Bus

(D) Address Bus

7. What does the control bus manage during data transfer operations?

(A) Addresses of memory locations

(B) Timing and control signals

(C) Data transfer between components

(D) Power supply to components

8. Which bus type is bi-directional, allowing data to be read from or written to a memory location?

(A) Address Bus

(B) Control Bus

(C) Data Bus

(D) Power Bus

9. What does the address bus determine during a read operation?

(A) The data to be written

(B) The address of the data to be read

(C) The control signals for data transfer

(D) The power requirements

10. Which bus is crucial for the CPU to manage and coordinate its operations with other components?

(A) Data Bus

(B) Address Bus

(C) Control Bus

(D) Power Bus

11. Which bus component carries the actual data being transferred?

(A) Address Bus

(B) Power Bus

(C) Control Bus

(D) Data Bus

12. What does the control bus include for managing memory read and write operations?

(A) Read/Write signals

(B) Data lines

(C) Address lines

(D) Power lines

13. Which bus is typically wide enough to carry multiple bits of data simultaneously?

(A) Address Bus

(B) Data Bus

(C) Control Bus

(D) Power Bus

14. In a computer system, what does the control bus signal?

(A) The power level of the system

(B) The address of data

(C) Read and write operations, interrupts, and clock signals

(D) The data being transferred

15. What determines the maximum amount of memory a system can address?

(A) Data Bus width

(B) Address Bus width

(C) Control Bus speed

(D) Power supply

16. What does the data bus width impact in a computer system?

(A) The amount of data that can be transferred simultaneously

(B) The speed of the control signals

(C) The number of memory addresses

(D) The power consumption

17. Which bus connects the CPU to RAM, ROM, and I/O ports for data exchange?

(A) Address Bus

(B) Power Bus

(C) Control Bus

(D) Data Bus

18. During a memory write operation, which bus carries the data to be written?

(A) Address Bus

(B) Data Bus

(C) Control Bus

(D) Power Bus

19. Which bus is responsible for carrying control signals to manage the timing of data transfers?

(A) Address Bus

(B) Data Bus

(C) Control Bus

(D) Power Bus

20. What does the width of the address bus determine?

(A) The addressable memory space

(B) The data transfer rate

(C) The control signals

(D) The data bus speed