Advanced Computer Architecture MCQs with Answers
Practice important Advanced Computer Architecture MCQs with answers and explanations.
Multiple Choice Questions
Q391: In the instruction fetch phase, what control signal enables the memory read operation?
- A: LMBR
- B: MRead
- C: LC
- D: LPC
View Answer
B
Q392: The LPC control signal in SRC allows the Program Counter to be:
- A: Loaded with the incremented value
- B: Written into the Memory Address Register
- C: Read from the internal data bus
- D: Written onto external CPU bus
View Answer
A
Q393: Which of the following signals is activated to enable the tri-state buffers of the Memory Buffer Register (MBR)?
- A: MARout
- B: PCout
- C: MBRout
- D: LIR
View Answer
C
Q394: The LIR control signal in SRC is used to:
- A: Enable tri-state buffers
- B: Load the Instruction Register
- C: Load the Memory Buffer Register
- D: Enable Program Counter
View Answer
B
Q395: Which control signal writes the contents of register C onto the internal processor bus?
- A: LC
- B: Cout
- C: PCout
- D: MARout
View Answer
B
Q396: What does the RAE control signal enable in the register selection process?
- A: Enables reading from register A
- B: Enables writing to register A
- C: Selects the register based on instruction
- D: Enables data transfer to Memory Buffer
View Answer
C
Q397: The MBR holds values read from:
- A: ALU
- B: Memory
- C: Program Counter
- D: Instruction Register
View Answer
B
Q398: The control signal R2BUS enables which of the following?
- A: Writing register contents onto internal bus
- B: Writing ALU results to register
- C: Reading memory contents to bus
- D: Writing PC onto external data bus
View Answer
A
Q399: The ALSU is responsible for which operation in the SRC data path?
- A: Control signal generation
- B: Address translation
- C: Arithmetic and logical operations
- D: Bus management
View Answer
C
Q400: The memory buffer register (MBR) is connected to which of the following?
- A: External CPU data bus
- B: Program Counter
- C: Instruction Register
- D: Arithmetic Unit
View Answer
A