51
1+4+7+......+(3n-2) is:
Answer
B. n(3n-1)/2
52
Which among the following functions is not reflexive?
Answer
C. Relation ^ (perpendicular) on the set of lines L in a plane
53
Which of the following type of relations partitions a set into a set of disjoint classes?
Answer
B. equivalence
54
How many times in nPr that of nCr?
Answer
A. r!
55
Deterministic and non-deterministic models of which among the following automata have non-equivalent powers?
Answer
A. FA
56
Which among the following types of languages are accepted both by Finite Automata and Push down automata?
Answer
D. none of the above
57
Consider the following two languages over {a, b}.
L1- the set of strings beginning and ending with an a
L2- the set of strings with same number of a’s and b’s
Which of the following is true about L1 and L2?
L1- the set of strings beginning and ending with an a
L2- the set of strings with same number of a’s and b’s
Which of the following is true about L1 and L2?
Answer
B. L1 is regular and L2 is context-free but not regular
58
Classify into one of the alternatives the grammar denoted by the productions S→aB, S→bA, A→a, A→aS, A→bAA, B→b, B→bS, B→aBB, AB→BA :
Answer
C. Context sensitive grammar
59
~q˅p is equivalent to:
Answer
B. q→p
60
CRC is:
Answer
A. an error detection code
61
Totempole output is characteristic of the logic IC family:
Answer
C. TTL
62
A XOR B is equivalent to:
Answer
D. (A+B’).(B’+A)
63
Which of the following is not correct?
Answer
D. (x’+y’)’=x’.y’
64
Which among the following flip-flops is a modification to the R-S flip-flop that avoids its indeterminate state?
Answer
B. D flip-flop
65
The decimal equivalent of the octal number 137 is:
Answer
C. 95
66
The next larger integer corresponding to the positive integer whose representation in hexadecimal format is FF, represented in octal form is:
Answer
174
Explanation:
FF in binary form = 1111 1111
Its decimal value = 255
Next larger integer in Decimal = 256
Its corresponding octal number = 174
67
Into which of the following categories of tokens can you classify the character stream “elseif”?
Answer
C. reserved word
68
How many C tokens are present in the following assignment statement a+=b;
Answer
C. 4
69
The operator in C among the following that is not overloaded is:
Answer
B. /
70
The incorrect statement a++b++ in C can be converted to a legal statement by changing which of the + characters to =?
Answer
B. 2nd alone
71
Which of the following is a valid operator of C++ but not of C?
Answer
A. New
72
An abstract class in C++ is:
Answer
C. a class declared with virtual qualification
73
In a publicly derived subclass, the protected members of a superclass are:
Answer
B. available with protected visibility
74
Which among the following DMLs given below is a domain calculus language?
Answer
A. SQL
75
A relation in BCNF with no multivalued dependencies is in:
Answer
D. 4NF
Mary
Q34 Answer is one-time pad
Mary
Q42 Answer is (C)