11) For which of the following devices, is DMA the most suitable ?
a) Keyboard
b) Mouse
c) Joy stick
d) Hard disk
12) In which unit is the performance of cache memory measured ?
a) Hz
b) Bits/s
c) Cache constant
d) Hit ratio
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
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
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
16) How many distinct binary trees can be constructed with three nodes?
a) 1
b) 2
c) 3
d) 5
17) The interface chip used for data transmission between 8086 and a 16-bit ADC is
a) 8251
b) 8253
c) 8255
d) 8259
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
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
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
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