Advanced Computer Architecture MCQs with Answers
Practice important Advanced Computer Architecture MCQs with answers and explanations.
Multiple Choice Questions
Q551: The performance of which subsystem becomes critical in high I/O traffic environments?
- A: CPU
- B: Memory
- C: I/O
- D: Cache
View Answer
C
Q552: In an I/O subsystem, what happens when a peripheral device fails?
- A: The system continues running
- B: The CPU must wait for it to recover
- C: Data is stored in the buffer
- D: Data is lost
View Answer
C
Q553: In memory-mapped I/O, peripheral devices are mapped to _______.
- A: I/O space
- B: Memory address space
- C: Disk space
- D: None of the above
View Answer
B
Q554: The x86 family of processors uses which instructions for I/O operations?
- A: MOV and ADD
- B: LOAD and STORE
- C: IN and OUT
- D: PUSH and POP
View Answer
C
Q555: Buffering in I/O subsystems refers to _______.
- A: Temporarily storing data in memory
- B: Temporarily storing control signals
- C: Temporarily storing error messages
- D: None of the above
View Answer
A
Q556: Mechanical failures in I/O devices can result in which issue?
- A: Reduced data transfer rate
- B: Increased CPU speed
- C: Improved performance
- D: Error-free operation
View Answer
A
Q557: What is the size of the I/O space for the Pentium processor?
- A: 64 Kbytes
- B: 32 Kbytes
- C: 16 Kbytes
- D: 128 Kbytes
View Answer
A
Q558: How does the CPU differentiate between memory and I/O space?
- A: Using control signals
- B: Using data signals
- C: By address size
- D: By clock speed
View Answer
A
Q559: What signal becomes active during the execution of the "in" instruction on a Pentium processor?
- A: IOR#
- B: MEMR#
- C: INTR
- D: OUT#
View Answer
A
Q560: Which signal is activated for memory reads in a Pentium processor?
- A: MEMR#
- B: IOR#
- C: INT#
- D: ACK#
View Answer
A