Explore topic-wise MCQs in Vlsi.

This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Vlsi knowledge and support exam preparation. Choose a topic below to get started.

1.

PRIMITIVE_POLYNOMIALS_ARE_THOSE_WHICH?$

A. has intial state zero
B. which gives maximal length sequence
C. which does not give maximal length sequence
D. which has AND gate per flip-flop
Answer» C. which does not give maximal length sequence
Discussion
2.

In LFSR, the test patterns are repeatable.$

A. true
B. false
Answer» B. false
Discussion
3.

LFSR has _____?

A. EX-OR gates
B. AND gates
C. OR gates
D. EX-OR and AND gates
Answer» B. AND gates
Discussion
4.

The zero coefficient terms determines the number of EX-OR gates to be used.

A. true
B. false
Answer» C.
Discussion
5.

______ determines the position of EX-OR gate with respect to fip-flops

A. maximal length sequence
B. value of n
C. number of flip-flops
D. characteristic equation
Answer» E.
Discussion
6.

For n-bit LFSR, the longest possible sequence is given by

A. 2<sup>n</sup>
B. 2<sup>n</sup> + 1
C. 2<sup>n</sup>– 1
D. 1/2<sup>n</sup>
Answer» D. 1/2<sup>n</sup>
Discussion
7.

The initial state in LFSR must be initialized to zero.

A. true
B. false
Answer» C.
Discussion
8.

Which method has more uniformity?

A. internal feedback LFSR
B. external feedback LFSR
C. all of the mentioned
D. none of the mentioned
Answer» C. all of the mentioned
Discussion
9.

Which uses highest operating frequency?

A. internal feedback LFSR
B. external feedback LFSR
C. both internal and external LFSR
D. counters
Answer» B. external feedback LFSR
Discussion
10.

In external feedback LFSR, shift registers and feedback paths are combined using

A. OR gates
B. AND gates
C. EX-OR gates
D. NAND gates
Answer» D. NAND gates
Discussion
11.

Linear feedback shift register occupies more area.

A. true
B. false
Answer» C.
Discussion