Computer Memory Organization MCQ Questions
Memory Organization MCQs: This section focuses on "Memory Organization" of Computer Organization & Architecture. These Multiple Choice Questions (MCQ) should be practiced to improve the Computer Organization & Architecture skills required for various interviews (campus interview, walk-in interview, company interview), placements, entrance exams and other competitive examinations.
1. What is true about memory unit?
A. A memory unit is the collection of storage units or devices together.
B. The memory unit stores the binary information in the form of bits.
C. Both A and B
D. None of the above
View Answer
Ans : C
Explanation: A memory unit is the collection of storage units or devices together. The memory unit stores the binary information in the form of bits.
2. In how many categories memory/storage is classified?
A. 2
B. 3
C. 4
D. 5
View Answer
Ans : A
Explanation: Generally, memory/storage is classified into 2 categories: Volatile Memory and Non-Volatile Memory.
3. When when power is switched off which memory loses its data?
A. Non-Volatile Memory
B. Volatile Memory
C. Both A and B
D. None of the above
View Answer
Ans : B
Explanation: Volatile Memory: This loses its data, when power is switched off.
4. Auxillary memory access time is generally ________ times that of the main memory
A. 10
B. 100
C. 1000
D. 10000
View Answer
Ans : C
Explanation: Auxillary memory access time is generally 1000 times that of the main memory, hence it is at the bottom of the hierarchy.
5. What is the formula for Hit Ratio?
A. Hit/(Hit + Miss)
B. Miss/(Hit + Miss)
C. (Hit + Miss)/Miss
D. (Hit + Miss)/Hit
View Answer
Ans : A
Explanation: Hit Ratio = Hit/(Hit + Miss)
6. Which of the following is correct example for Auxiliary Memory?
A. Magnetic disks
B. Tapes
C. Flash memory.
D. Both A and B
View Answer
Ans : D
Explanation: Devices that provide backup storage are called auxiliary memory. For example: Magnetic disks and tapes
7. The fastest data access is provided using _______
A. Cache
B. DRAM's
C. SRAM's
D. Registers
View Answer
Ans : D
Explanation: The fastest data access is provided using registers as these memory locations are situated inside the processor.
8. The next level of memory hierarchy after the L2 cache is _______
A. Secondary storage
B. Main memory
C. Register
D. TLB
View Answer
Ans : C
Explanation: The next level of memory hierarchy after the L2 cache is Register.
9. Which of the following is correct refreshed rate for DRAM?
A. 10~1000 ms
B. 10~50 ms
C. 10~100 ms
D. 10~500 ms
View Answer
Ans : C
Explanation: Dynamic RAM, is made of capacitors and transistors, and must be refreshed every 10~100 ms
10. Which of the following is true?
A. To overcome the slow operating speeds of the secondary memory we make use of faster flash drives.
B. If we use the flash drives instead of the harddisks, then the secondary storage can go above primary memory in the hierarchy.
C. In the memory hierarchy, as the speed of operation increases the memory size also increases.
D. Both A and C
View Answer
Ans : A
Explanation: Option A is true , Option B and C is false.
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