Explore topic-wise MCQs in C++ Programming.

This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your C++ Programming knowledge and support exam preparation. Choose a topic below to get started.

1.

What does size() function returns?

A. To count the number of 0's
B. To count the number of 1's
C. To count the number of total bits used by bitset variable
D. To count the number of low bits
Answer» D. To count the number of low bits
Discussion
2.

What is the use of count() function in bitset?

A. To count the number of 0's
B. To count the number of 1's
C. To count the number of total bits in a bitset
D. To count the number of low bits
Answer» C. To count the number of total bits in a bitset
Discussion
3.

Indexing of bitset variables starts from ___________

A. leftmost bit
B. rightmost bit
C. same as in an array
D. front
Answer» C. same as in an array
Discussion
4.

Which header file is required for using bitset in your program?

A. <bit>
B. <bitset>
C. <bits>
D. <BitSet>
Answer» C. <bits>
Discussion
5.

What is the default value of a bitset?

A. All bits are 0
B. All bits are 1
C. Leftmost bit is 0
D. Rightmost bit is 0
Answer» B. All bits are 1
Discussion
6.

Which of the following is corect way of constructing bitset using binary string?

A. bitset<size> b;
B. bitset<size> b(12);
C. bitset<size> b(string( 1100 ));
D. bitset<size> b(float(12));
Answer» D. bitset<size> b(float(12));
Discussion
7.

Which of the following is corect way of constructing bitset using integer number?

A. bitset<size> b;
B. bitset<size> b(12);
C. bitset<size> b(string( 1100 ));
D. bitset<size> b(float(12));
Answer» C. bitset<size> b(string( 1100 ));
Discussion
8.

Which is the correct syntax of constructing a bitset?

A. bitset<size> b;
B. bitset<size> b(12);
C. bitset<size> b(string( 1100 ));
D. all of the mentioned
Answer» E.
Discussion
9.

How many ways are there for constructing a bitset?

A. 1
B. 2
C. 3
D. 4
Answer» D. 4
Discussion
10.

Which operator is used to access the nth bit in a bitset?

A. ->
B. []
C. .
D. *
Answer» C. .
Discussion
11.

Which of the following is the limitation of bitset over vector bool?

A. Space
B. Size
C. Type
D. Speed
Answer» C. Type
Discussion
12.

Which of the following is correct about bitset and vector of bools?

A. Space consumed by bitset is less than vector<bool>
B. Bitset consume only 1 bit per element
C. Number of elements in bitset should be known at compile time whereas vector can have a dynamic size
D. All of the mentioned
Answer» E.
Discussion
13.

What is bitset in C++?

A. An array of bools consuming one bit per element
B. Vector of bools
C. C-like arrays of bool elements
D. Template class
Answer» B. Vector of bools
Discussion