UGC NET · PAPER 2
UGC NET Paper 2 Computer Science – Unit 2: Computer System Architecture PYQ (December 2023)
Q5. Which of the following circuits is used to store one bit of data?
- Encoder
- Decoder
- Flip-Flop
- Register
Q6. Identify the code sequence: 1010, 1011, 1001, 1000
- BCD
- Excess-3
- Gray
- Excess-3 Gray
Q7. The microoperation which divides a signed binary number by 2 is:
- Circular shift
- Logical shift
- Arithmetic shift right
- Arithmetic shift left
Q8. A program that is used by other routines to accomplish a particular task is called:
- Micro program
- Micro operation
- Routine
- Subroutine
Q15. A system bus in which each data item is transferred during a time slice known in advance to both the source and destination units is called:
- MIMD
- DMA
- Asynchronous bus
- Synchronous bus
Q29. The average time required to reach a storage location in memory and obtain its contents is called:
- Access time
- Latency time
- Response time
- Reading time
Q44. The interface(s) that provide I/O transfer of data directly to and from the memory unit and a peripheral is/are termed:
(A) DMA (Direct Memory Access)
(B) IOP (Input-Output Processor)
(C) Serial Interface
(D) Parallel Interface
Choose the correct answer from the options given below:
(A) DMA (Direct Memory Access)
(B) IOP (Input-Output Processor)
(C) Serial Interface
(D) Parallel Interface
Choose the correct answer from the options given below:
- (A) Only
- (B) Only
- (A) and (B) Only
- (C) and (D) Only
Q45. Which of the following is/are main memory?
(A) Virtual memory
(B) Cache memory
(C) RAM
(D) SSD
Choose the correct answer from the options given below:
(A) Virtual memory
(B) Cache memory
(C) RAM
(D) SSD
Choose the correct answer from the options given below:
- (A) and (C) Only
- (B) and (C) Only
- (C) and (D) Only
- (A), (B) and (C) Only
Q51. Which of the following statements is/are NOT CORRECT about NUMA?
(A) LOAD and STORE instructions are used to access remote memory.
(B) There is a single address space visible to all CPUs.
(C) Access to local memory is slower than access to remote memory.
(D) When the access time to remote memory is hidden, the system is called NC-NUMA.
(E) In CC-NUMA, coherent caches are present.
Choose the correct answer from the options given below:
(A) LOAD and STORE instructions are used to access remote memory.
(B) There is a single address space visible to all CPUs.
(C) Access to local memory is slower than access to remote memory.
(D) When the access time to remote memory is hidden, the system is called NC-NUMA.
(E) In CC-NUMA, coherent caches are present.
Choose the correct answer from the options given below:
- (A) and (C) Only
- (B) and (D) Only
- (A) and (E) Only
- (C) and (D) Only
Q67. Match List I with List II (basic computer instructions)
| List I | List II |
|---|---|
| (a) SZA | (I) Increment M and skip if zero |
| (b) SKI | (II) Skip if AC is negative |
| (c) SNA | (III) Skip if input flag is on |
| (d) ISZ | (IV) Skip if AC is zero |
- (a)-(II), (b)-(IV), (c)-(I), (d)-(III)
- (a)-(IV), (b)-(III), (c)-(II), (d)-(I)
- (a)-(IV), (b)-(II), (c)-(I), (d)-(III)
- (a)-(III), (b)-(IV), (c)-(II), (d)-(I)
Q77. In the most general case, the computer needs to process each instruction with the following sequence of steps:
(A) Calculate the effective address
(B) Execute the instruction
(C) Fetch the instruction from memory
(D) Fetch the operand from memory
(E) Decode the instruction
Choose the correct answer from the options given below:
(A) Calculate the effective address
(B) Execute the instruction
(C) Fetch the instruction from memory
(D) Fetch the operand from memory
(E) Decode the instruction
Choose the correct answer from the options given below:
- (C), (E), (D), (A), (B)
- (C), (E), (A), (D), (B)
- (A), (B), (C), (E), (D)
- (A), (B), (C), (D), (E)