Computer Architecture MCQs and Notes

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📊 Computer Architecture
Q. The DMA doesn’t make use of the MMU for bulk data transfers.
  • (A) true
  • (B) false
  • (C) ---
  • (D) ---
💬 Discuss
✅ Correct Answer: (B) false

Explanation: the dma stands for direct memory access, in which a block of data gets directly transferred from the memory.

📊 Computer Architecture
Q. ______ translates the logical address into a physical address.
  • (A) mmu
  • (B) translator
  • (C) compiler
  • (D) linker
💬 Discuss
✅ Correct Answer: (A) mmu

Explanation: the mmu translates the logical address into a physical address by adding an offset.

📊 Computer Architecture
Q. _______ is used to implement virtual memory organization.
  • (A) page table
  • (B) frame table
  • (C) mmu
  • (D) none of the mentioned
💬 Discuss
✅ Correct Answer: (C) mmu

Explanation: the mmu stands for memory management unit.

📊 Computer Architecture
Q. The binary address issued to data or instructions are called as
  • (A) physical address
  • (B) location
  • (C) relocatable address
  • (D) logical address
💬 Discuss
✅ Correct Answer: (D) logical address

Explanation: the logical address is the random address generated by the processor.

📊 Computer Architecture
Q. The techniques which move the program blocks to or from the physical memory is called as
  • (A) paging
  • (B) virtual memory organisation
  • (C) overlays
  • (D) framing
💬 Discuss
✅ Correct Answer: (B) virtual memory organisation

Explanation: by using this technique the program execution is accomplished with a usage of less space.

📊 Computer Architecture
Q. The program is divided into operable parts called as
  • (A) frames
  • (B) segments
  • (C) pages
  • (D) sheets
💬 Discuss
✅ Correct Answer: (B) segments

Explanation: the program is divided into parts called as segments for ease of execution.

📊 Computer Architecture
Q. The physical memory is not as large as the address space spanned by the processor.
  • (A) true
  • (B) false
  • (C) ---
  • (D) ---
💬 Discuss
✅ Correct Answer: (A) true

Explanation: this is one of the main reasons for the usage of virtual memories.

📊 Computer Architecture
Q. If the instruction Add R1, R2, R3 is executed in a system which is pipelined, then the value of S is (Where S is a term of the Basic performance equation).
  • (A) 3
  • (B) ~2
  • (C) ~1
  • (D) 6
💬 Discuss
✅ Correct Answer: (C) ~1

Explanation: pipelining is a process of fetching an instruction during the execution of other instruction.

📊 Computer Architecture
Q. Two processors A and B have clock frequencies of 700 Mhz and 900 Mhz respectively. Suppose A can execute an instruction with an average of 3 steps and B can execute with an average of 5 steps. For the execution of the same instruction which processor is faster.
  • (A) A
  • (B) B
  • (C) both take the same time
  • (D) insufficient information
💬 Discuss
✅ Correct Answer: (A) A
📊 Computer Architecture
Q. The performance of the system is greatly influenced by increasing the level 1 cache.
  • (A) true
  • (B) false
  • (C) ---
  • (D) ---
💬 Discuss
✅ Correct Answer: (A) true

Explanation: this is so because the l1 cache is onboard the processor.

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