C Arrays Quiz – 20 Questions with Answers
20 questions · 15 min · Medium
Bitwise Operators in C Quiz – 15 Questions with Answers
Test your knowledge of bitwise operators in C with 15 questions covering AND, OR, XOR, NOT, left shift, right shift, bit manipulation, and binary operations.
- 15
- Questions
- 12 min
- Time limit
- Medium
- Difficulty
No sign-up needed · Last updated:
Score: 0 00:00
Save your score
Create a free account to keep your scores and track your progress. It is optional.
Questions to review
Related quizzes
Complicated Declarations in C
15 questions · 12 min · Medium
Command Line Arguments in C
15 questions · 12 min · Medium
C Preprocessor Quiz – 15 Questions with Answers
15 questions · 12 min · Medium
const in C
15 questions · 12 min · Medium
Declarations and Initializations in C
15 questions · 12 min · Medium
All 15 questions and answers Spoilers: this shows the questions and answers. Try the quiz first! Open
-
1. Which operator is used for bitwise AND in C?
- A. &
- B. &&
- C. |
- D. ^
Show answer
A. &
The & operator performs a bitwise AND operation on the corresponding bits of two operands.
-
2. Which operator is used for bitwise OR in C?
- A. ||
- B. |
- C. &
- D. ^
Show answer
B. |
The | operator performs a bitwise OR operation on the corresponding bits of two operands.
-
3. Which operator is used for bitwise XOR in C?
- A. ^
- B. ^^
- C. xor
- D. &
Show answer
A. ^
The ^ operator performs a bitwise exclusive OR operation. A result bit is 1 when the corresponding input bits are different.
-
4. Which operator is used for bitwise NOT in C?
- A. !
- B. ~
- C. ^
- D. -
Show answer
B. ~
The ~ operator performs a bitwise NOT operation and flips each bit of its operand.
-
5. What is the result of 5 & 3 in C?
- A. 1
- B. 2
- C. 3
- D. 7
Show answer
A. 1
In binary, 5 is 101 and 3 is 011. Performing 101 & 011 gives 001, which is 1.
-
6. What is the result of 5 | 3 in C?
- A. 1
- B. 6
- C. 7
- D. 8
Show answer
C. 7
In binary, 5 is 101 and 3 is 011. Performing 101 | 011 gives 111, which is 7.
-
7. What is the result of 5 ^ 3 in C?
- A. 1
- B. 2
- C. 6
- D. 7
Show answer
C. 6
In binary, 5 is 101 and 3 is 011. XOR gives 110, which is 6.
-
8. Which operator is used for a left bitwise shift in C?
- A. <
- B. <<
- C. >>
- D. <=
Show answer
B. <<
The << operator shifts the bits of its left operand toward the left by the specified number of positions.
-
9. Which operator is used for a right bitwise shift in C?
- A. >>
- B. >
- C. >>>
- D. =>
Show answer
A. >>
The >> operator shifts the bits of its left operand toward the right by the specified number of positions.
-
10. What is the result of 4 << 1 in C?
- A. 2
- B. 4
- C. 8
- D. 16
Show answer
C. 8
The binary representation of 4 is 100. Shifting it left by one position produces 1000, which is 8.
-
11. What is the result of 8 >> 2 in C?
- A. 1
- B. 2
- C. 4
- D. 16
Show answer
B. 2
The binary representation of 8 is 1000. Shifting it right by two positions produces 0010, which is 2.
-
12. Which bitwise operation can be used to check whether a particular bit is set?
- A. Bitwise AND
- B. Bitwise OR
- C. Bitwise XOR
- D. Bitwise NOT
Show answer
A. Bitwise AND
A bitwise AND operation with an appropriate mask can be used to determine whether a specific bit is set.
-
13. Which operation can be used to set a particular bit to 1?
- A. Bitwise AND with a mask
- B. Bitwise OR with a mask
- C. Bitwise NOT only
- D. Right shift only
Show answer
B. Bitwise OR with a mask
Using bitwise OR with a mask containing 1 at the target position sets that bit to 1.
-
14. Which operation can be used to toggle a particular bit?
- A. Bitwise AND
- B. Bitwise OR
- C. Bitwise XOR
- D. Bitwise NOT with no operand
Show answer
C. Bitwise XOR
XOR with a mask containing 1 at a particular position toggles that bit: 0 becomes 1 and 1 becomes 0.
-
15. Which statement correctly distinguishes bitwise AND (&) from logical AND (&&) in C?
- A. Both operators always perform exactly the same operation
- B. & operates on bits, while && performs a logical AND operation
- C. & is used only with floating-point values
- D. && is used to shift bits
Show answer
B. & operates on bits, while && performs a logical AND operation
The & operator performs a bitwise operation on integer operands, while && evaluates the logical truth of its operands.