Computer Architecture Questions & Answers - Set 04 - ObjectiveBooks

Computer Architecture Questions & Answers - Set 04

Practice Test: Question Set - 04

1. The information available in a state table may be represented graphically in a
    (A) Simple diagram
    (B) State diagram
    (C) Complex diagram
    (D) Data flow diagram

2. Content of the program counter is added to the address part of the instruction in order to obtain the effective address is called.
    (A) Relative address mode
    (B) Index addressing mode
    (C) Register mode
    (D) Implied mode

3. An interface that provides I/O transfer of data directly to and from the memory unit and peripheral is termed as
    (A) DDA
    (B) Serial interface
    (C) BR
    (D) DMA

4. The 2s compliment form (Use 6 bit word) of the number 1010 is
    (A) 111100
    (B) 110110
    (C) 110111
    (D) 1011

5. A register capable of shifting its binary information either to the right or the left is called a
    (A) Parallel register
    (B) Serial register
    (C) Shift register
    (D) Storage register

6. What is the content of Stack Pointer (SP)?
    (A) Address of the current instruction
    (B) Address of the next instruction
    (C) Address of the top element of the stack
    (D) Size of the stack

7. Which of the following interrupt is non-maskable
    (A) INTR
    (B) RST 7.5
    (C) RST 6.5
    (D) TRAP

8. Which of the following is a main memory?
    (A) Secondary memory
    (B) Auxiliary memory
    (C) Cache memory
    (D) Virtual memory

9. Which of the following are not a machine instructions?
    (A) MOV
    (B) ORG
    (C) END
    (D) Both (b) & (c)

10. In Assembly language programming, minimum number of operands required for an instruction is/are
    (A) Zero
    (B) One
    (C) Two
    (D) Both (b) & (c)

11. The maximum addressing capacity of a micro processor which uses 16 bit database & 32 bit address base is
    (A) 64 K
    (B) 4 GB
    (C) Both (a) & (b)
    (D) None of these

12. The memory unit that communicates directly with the CPU is called the
    (A) Main memory
    (B) Secondary memory
    (C) Shared memory
    (D) Auxiliary memory

13. The average time required to reach a storage location in memory and obtain its contents is called
    (A) Latency time
    (B) Access time
    (C) Turnaround time
    (D) Response time

14. A byte is a group of 16 bits.
    (A) True
    (B) False

15. A nibble is a group of 16 bits.
    (A) True
    (B) False

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