Explore topic-wise MCQs in Testing Subject.

This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.

1.

Representation of hexadecimal number (6DE)H in decimal:

A. 6 * 162 + 13 * 161 + 14 * 160
B. 6 * 162 + 12 * 161 + 13 * 160
C. 6 * 162 + 11 * 161 + 14 * 160
D. 6 * 162 + 14 * 161 + 15 * 160
Answer» B. 6 * 162 + 12 * 161 + 13 * 160
Discussion
2.

The largest two digit hexadecimal number is

A. (fe)16
B. (fd)16
C. (ff)16
D. (ef)16
Answer» D. (ef)16
Discussion
3.

The decimal equivalent of the octal number (645)8 is

A. (450)10
B. (451)10
C. (421)10
D. (501)10
Answer» D. (501)10
Discussion
4.

The decimal equivalent of the binary number (1011.011)2 is

A. (11.375)10
B. (10.123)10
C. (11.175)10
D. (9.23)10
Answer» B. (10.123)10
Discussion
5.

An important drawback of binary system is

A. it requires very large string of 1’s and 0’s to represent a decimal number
B. it requires sparingly small string of 1’s and 0’s to represent a decimal number
C. it requires large string of 1’s and small string of 0’s to represent a decimal number
D. it requires small string of 1’s and large string of 0’s to represent a decimal number
Answer» B. it requires sparingly small string of 1’s and 0’s to represent a decimal number
Discussion
6.

The representation of octal number (532.2)8 in decimal is

A. (346.25)10
B. (532.864)10
C. (340.67)10
D. (531.668)10
Answer» B. (532.864)10
Discussion
7.

The parameter through which 16 distinct values can be represented is known as

A. bit
B. byte
C. word
D. nibble
Answer» D. nibble
Discussion
8.

Any signed negative binary number is recognised by its

A. msb
B. lsb
C. byte
D. nibble
Answer» B. lsb
Discussion