91. The range of the function f(x) x2/1+x2 is
A. (-infinity, +infinity)
B. (0, infinity)
C. (-infinity, 0)
D. (0,1)
Show Answer
Hide Answer
92. A and B are two 8-bit numbers such that A+B <=28, the numbers of possible combinations of A and B is
A. 2^9su
B. 2^8
C. 2^16
D.2^4-1
Show Answer
Hide Answer
93.Which of the following is tautology?
A. (a v b) -> (b^c)
B. (a^b) -> (b v c)
C. (a v b) -> (b ->c)
D. None of the above
Show Answer
Hide Answer
94. From a complete graph by removing maximum ____ edges, we can construct a spanning tree.
A. e – n + 1
B. n – e + 1
C. n + e – 1
D. e – n – 1
Show Answer
Hide Answer
95. In how many ways can 8 Indians, 4 Americans and 4 Englishmen be seated in a row so that all persons of sane nationality sit together?
A. 3! 4! 8! 4!
B. 3! 8!
C. 4! 4!
D. 8! 4! 4!
Show Answer
Hide Answer
96. The total number of words by 2 vowels and 3 consonants taken from 4 vowels and 5 consonants is
A. 60
B. 120
C. 7200
D. None of the above
Show Answer
Hide Answer
97. The output F of the circuit
is given by
A. 1
B. 0
C. x
D. x’
Show Answer
Hide Answer
98. Which of the following is a memory element?
A. NAND gate
B. SR flip-flop
C. NOT gate
D. Universal gate
Show Answer
Hide Answer
99. Which of the following is Universal gate?
A. NOT
B. NAND
C. OR
D. AND
Show Answer
Hide Answer
100. The binary equivalent of the gray code 11100 is
A. 10111
B. 00111
C. 01011
D. 10101
Show Answer
Hide Answer
101. Which of the following is not necessarily a property of a group?
A. Commutativity
B. Associativity
C. Existence of inverse for every element
D. Existence of identity
Show Answer
Hide Answer
102. What is the possible number of reflexive relations on a set of 5 elements?
A. 2^10
B. 2^15
C. 2^20
D. 2^25
Show Answer
Hide Answer
103. From the given digits
2, 2, 3, 3, 3, 4, 4, 4, 4
How many 4-digit numbers greater than 3000 can be formed?
A. 50
B. 51
C. 52
D. 54
Show Answer
Hide Answer
104. What is the maximum number of different function involving n Boolean variables?
A. n^2
B. 2^n
C. 2^n^n
D. 2^2^n
Show Answer
Hide Answer
105. The number of equivalence relations of the set {1, 2, 3, 4} is
A. 4
B. 24
C. 25
D. 15
Show Answer
Hide Answer
106. What is the range of the following function?
{(4, 8), (9, 2), (-3,-4)
A. {4, 9, -3}
B. {8}
C. {(4, 8), (9, 2), (-3,-4)
D. {8, 2, -4}
Show Answer
Hide Answer
107. In the given graph identify the cut vertices:
A. B and E
B. C and D
C. A and E
D. C and B
Show Answer
Hide Answer
108. ______ monitors user’s activity on internet and transmits that information in the background to someone else.
A. Malware
B. Spyware
C. Adware
D. None of the above
Show Answer
Hide Answer
109. A portion of the polymorphic virus, generally called a ______, creates a random encryption key to encrypt the remainder of the virus.
A. polymorphic engine
B. multiple engine
C. mutual engine
D. mutation engine
Show Answer
Hide Answer
110. SSID stands For
A. Secure service identifier
B. Secure set independent device
C. Service set identifier
D. Service set independent device
Show Answer
Hide Answer
Leave a Reply