Computer Architecture MCQ-2

1. A group of bits that tell the computer to perform a specific operation is known as

(A) Instruction Code
(B) Micro operation
(C) Accumulator
(D) Register

2. An address in main memory is called

(A) Physical address
(B) Logical address
(C) Memory address
(D) Word address

3. A register capable of shifting its binary information either to the right or left is called a

(A) Parallel Register
(B) Serial Register
(C) Shift Register
(D) Storage Register

4. Which of the following are not a machine instructions?

(A) MOV
(B) ORG
(C) END
(D) Both(B) and(C)

5. Memory unit accessed by content is called

(A) ROM
(B) Programmable
(C) Virtual Memory
(D) Associative Memory

6. In a system, which has 32 register the register id is _____ long.

(A) 16 bits
(B) 8 bits
(C) 5 bits
(D) 6 bits

7. The two phases of executing an instruction are

(A) Decoding and storage
(B) Fetching and executing
(C) Decode and fetch
(D) None of these

8. The addressing mode which make use of indirection pointer is _____

(A) Indirect addressing mode
(B) Index addressing mode
(C) Relative addressing mode
(D) Offset addressing mode

9. The addressing modem, which uses the PC instead of a general purpose register is _____

(A) Indexed with offset
(B) Relative
(C) Direct
(D) Both (B) and (C)

10. The addressing mode, where you directly specify the operand value is _____

(A) Immediate
(B) Register-direct
(C) Definite
(D) Relative

11. _____ Converts the programs written in assembly language into machine instructions.

(A) Compiler
(B) Interpreter
(C) Assembler
(D) Converter

12. The instructions like MOV and ADD are called as _____

(A) Opcode
(B) Operators
(C) Commands
(D) None of these

13. The interrupt-request line is a part of the

(A) Data line
(B) Control line
(C) Address line
(D) None of these

14. The DMA transfer are performed by a control circuit called as

(A) Device interface
(B) DMA controller
(C) Data controller
(D) Over lookers

15. The DMA controller has _____ registers.

(A) 4
(B) 2
(C) 3
(D) 1

16. The controller is connected to the _____

(A) Processor Bus
(B) System Bus
(C) External Bus
(D) None of these

17. The registers of the controller are _____

(A) 64 bits
(B) 24 bits
(C) 32 bits
(D) 16 bits

18. A collection of lines that connects several devices is called _____

(A) BUS
(B) Peripheral wires
(C) Both (A) and (B)
(D) Interal wires

19. Memory address refers to the successive memory words and the machine is called as

(A) Word addressable
(B) Byte addressable
(C) Bit addressable
(D) None of these

20. An exception conditions in a computer system by event external to the CPU is called

(A) Interrupt
(B) Halt
(C) Wait
(D) Process