Computer Architecture Short Question And Answer MCQs Set-3

1. The circuit used to store one bit of data is known as
  • Encoder
  • OR gate
  • Flip Flop
  • Decoder
2. Cache memory acts between
  • CPU and RAM
  • RAM and ROM
  • CPU and Hard Disk
  • None of these
3. Write Through technique is used in which memory for updating the data
  • Virtual memory
  • Main memory
  • Auxiliary memory
  • Cache memory
4. Generally Dynamic RAM is used as main memory in a computer system as it
  • Consumes less power
  • has higher speed
  • has lower cell density
  • needs refreshing circuitary
5. In signed-magnitude binary division, if the dividend is (11100) 2 and divisor is (10011) 2 then the result is
  • (00100) 2
  • (10100) 2
  • (11001) 2
  • (01100) 2
6. Virtual memory consists of
  • Static RAM
  • Dynamic RAM
  • Magnetic memory
  • None of these
7. In a program using subroutine call instruction, it is necessary
  • initialise program counter
  • Clear the accumulator
  • Reset the microprocessor
  • Clear the instruction register
8. A Stack-organised Computer uses instruction of
  • Indirect addressing
  • Two-addressing
  • Zero addressing
  • Index addressing
9. If the main memory is of 8K bytes and the cache memory is of 2K words. It uses associative mapping. Then each word of cache memory shall be
  • 11 bits
  • 21 bits
  • 16 bits
  • 20 bits
10. A-Flip Flop can be converted into T-Flip Flop by using additional logic circuit
  • n TQD =•
  • T D =
  • D = T . Q n
  • n TQD =⊕