Practice Test: Question Set - 01
1. In Reverse Polish notation, expression A*B+C*D is written as
- (A) AB*CD*+
- (B) A*BCD*+
- (C) AB*CD+*
- (D) A*B*CD+
2. SIMD represents an organization that _________.
- (A) Refers
to a computer system capable of processing several programs at the same time
- (B) Represents
organization of single computer containing a control unit, processor unit and a
memory unit
- (C) Includes
many processing units under the supervision of a common control unit
- (D) None
of the above
3. Floating point representation is used to store
- (A) Boolean
values
- (B) Whole
numbers
- (C) Real
integers
- (D) Integers
4. Assembly language
- (A) Uses
alphabetic codes in place of binary numbers used in machine language
- (B) Is
the easiest language to write programs
- (C) Need
not be translated into machine language
- (D) None
of these
5. (2FAOC) 16 is equivalent to
- (A) (195 084) 10
- (B) (001011111010
0000 1100) 2
- (C) Both (a) and
(b)
- (D) None
of these
6. Which of the following is not a weighted code?
- (A) Decimal
Number system
- (B) Excess
3-cod
- (C) Binary
number System
- (D) None
of these
7. The idea of cache memory is based
- (A) On
the property of locality of reference
- (B) On
the heuristic 90-10 rule
- (C) On
the fact that references generally tend to cluster
- (D) All
of the above
8. Which of the following is lowest in memory hierarchy?
- (A) Cache
memory
- (B) Secondary
memory
- (C) Registers
- (D) RAM
9. The addressing mode used in an instruction of the form ADD XY, is
- (A) Absolute
- (B) Indirect
- (C) Index
- (D) None
of these
10. If memory access takes 20 ns with cache and 110 ns without it, then the ratio (cache uses a 10 ns memory) is
- (A) 93%
- (B) 90%
- (C) 88%
- (D) 87%
11. In a memory-mapped I/O system, which of the following will not be there?
- (A) LDA
- (B) IN
- (C) ADD
- (D) OUT
12. In a vectored interrupt.
- (A) The
branch address is assigned to a fixed location in memory
- (B) The
interrupting source supplies the branch information to the processor through an
interrupt vector
- (C) The
branch address is obtained from a register in the processor
- (D) None
of the above
13. The circuit used to store one bit of data is known as
- (A) Encoder
- (B) OR gate
- (C) Flip-Flop
- (D) Decoder
14. Write Through technique is used in which memory for updating the data
- (A) Virtual
memory
- (B) Main
memory
- (C) Auxiliary
memory
- (D) Cache
memory
15. Generally Dynamic RAM is used as main memory in a computer system as it
- (A) Consumes
less power
- (B) Has
higher speed
- (C) Has
lower cell density
- (D) Needs
refreshing circuitry
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