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Subject Revision Quiz-4
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Question 1
Given √224r = 13r the value of radix r is
Question 2
Let m=(313)4 and n=(322)4. Find the base 4 expansion of m+n.
Question 3
Which of the following is a weighted code?
Question 4
Perform multiplication of the binary numbers: 01001 × 01011 = ?
Question 5
The minimum number of flip-flops that can be used to construct a modulus-5 counter is __________
Question 6
Which of the following flip-flops is used to avoid the race around the problem?
Question 7
How many select lines are required for a 1-to-8 demultiplexer?
Question 8
In realization of 64 : 1 MUX using 2 : 1 MUX, the required number of 2 : 1 MUX is:
Question 9
The prime implicant which has at least one element that is not present in any other implicant is known as ___________
Question 10
If f(XYZ)= then prime implicants and essential prime implicants are respectively?
Question 11
The optimization phase in a compiler generally:
Question 12
Which of the following is not a machine-independent code optimization technique?
Question 13
Which of the following grammar is Left recursive?
Question 14
What is postfix notation also known as:
Question 15
A three-address code has _________ address locations to calculate the expression.
Question 16
The method which merges the bodies of two loops is
Question 17
Consider the following grammar :
E → TE'
E' → / +TE'
T → FT'
T' → / *FT'
F → id / (E)
Find the number of common symbols in Follow(F) , Follow(T) and Follow(T') ___________.
Question 18
GOTO(A→α·Xβ,X) is:
Question 19
Consider the following strings.
I. for1_2
II. _if
III. INT__
IV. 123
Find invalid tokens from the above strings in C program.
I. for1_2
II. _if
III. INT__
IV. 123
Find invalid tokens from the above strings in C program.
Question 20
Which of the following is not a token in C language.
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GATE & PSU CSGeneralJul 25GATE & PSU CS