Digital Electronic Circuits MCQ Questions Answers Electronics Engineering

11) For which of the following devices, is DMA the most suitable ?

a) Keyboard

b) Mouse

c) Joy stick

d) Hard disk

View Answer
Option – d)

12) In which unit is the performance of cache memory measured ?

a) Hz

b) Bits/s

c) Cache constant

d) Hit ratio

View Answer
Option – d)

13) Division by zero in a program gives rise to which one of the following ?

a) Syntax error

b) Run-time error

c) Logical error

d) semantic error

View Answer
Option – b)

14) Which one of the following is correct ?

The convention is that the number 0 has the normal  form representation  as

0

.0

0

100

View Answer
Option – c)

15) Which one of the following interrupts is  both level and edge sensitive?

a) RST 7.5

b) RST 5.5
c) TRAP

d) INTR

View Answer
Option – c)

16) How many distinct binary trees can be constructed with three nodes?

a) 1

b) 2

c) 3

d) 5

View Answer
Option – d)

17) The interface chip used for data transmission between 8086 and a 16-bit ADC is

a) 8251

b) 8253

c) 8255

d) 8259

View Answer
Option – c)

18) Insertion of a record in a circulary linked list involves the modification of:

a) 4 pointers

b) 3 pointers

c) 2 pointers

d) 1 pointers

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Option – c)

19) What can be the maximum dimension of an  array in C language program ?

a) 3

b) 4

c) 5

d) it is compiler dependent

View Answer
Option – d)

20) The data type defined by user is:

a) Built-in data type

b) Abstract data type

c) Homogeneous data type

d) Real data type

View Answer
Option – b)
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