The Global Open University 2012-1st Year M.C.A Global open University of IT Tools and Applications - Question Paper

Numbers 13.54 is
a. 1011.1011
b. 1101.1110
c. 1001.1110
d. all of the above
19) The octal equivalent of 111 010 is
a. 81
b. 72
c. 71
d. All of the above
20) The binary equivalent of the
hexadecimal number 7BD is
a. 01111 0111101
b. 1110101111101
c. 1011101111101
d. all of the above
21) Octal equivalent of the number
11010.1011 is
a. 32.15
b. 63.51
c. 32.27
d. all of the above
22) The parity bit is added for which
purpose?
a. coding
b. indexing
c. fault detection
d. all of the above
23) Hexadecimal numbers are a
mixture of
a. binary and decimal numbers
b. le5ers and decimal digits
c. binary and octal numbers
d. octal and decimal numbers
24) A half byte is known as
a. bug
b. nibble
c. data
d. bit
25 ) ASCII code is an
a. alphabet code
b. numeric code
c. alphanumeric code
d. cyclic code
26 ) The square of octal number 23 is
a. 529
b. 539
c. 550
d. 650
27 ) Which of the subsequent four bit
combination are invalid in the BCD
code?
a. 0010
b. 0101
c. 1000
d. 1010
28) Number 84 in BCD is
a. 1000 0100
b. 0100 0100
c. 1000 101
d. 1000 1100
29 ) What is the decimal equivalent of
hexadecimal number 566 ?
a. FF1
b. 1FF
c. 3FF
d. FF3
30 ) A computer sends a message to
a different computer using odd parity bit
with ASCII code. The message 6600
6000 is received. The message
a. contains 1-bit fault
b. does not contain 1-bit fault
c. contains 3-bit fault
d. may or may not contain 1-bit fault
31) The ASCII
a. is a subset of 8-bit EBCDIC
b. is used only in Western Countries
c. is version II of the ASC standard
d. has 128 character, including 32 control
characters
32 ) (r-1)'s compliment of the (r-1)'s
complement of an integer numbers is
a. The original number
b. the (r-2)'s compliment of the number
c. the r's compliment
d. the none of the above
33) Let every integer be represented

Earning:   Approval pending.