Chapter 2: MCQs on Basic Syntax in C++ | C++ Programming
C++ Basic Syntax MCQs: Master C++ Programming Fundamentals
Enhance your knowledge of C++ programming with 30 MCQs focused on the basic syntax. Topics include the structure of a C++ program, input/output, data types, operators, and more. Perfect for beginners and intermediate learners.
MCQs
1. What is the correct structure of a basic C++ program?
- A. Preprocessor directives, class declaration, main function
- B. Class declaration, main function, return statement
- C. Preprocessor directives, main function, return statement
- D. Function definitions, main function, class declaration
2. Which of the following is the correct syntax for printing output to the console in C++?
- A.
print("Hello, World!") - B.
echo "Hello, World!" - C.
cout << "Hello, World!"; - D.
printf("Hello, World!");
3. In C++, which symbol is used to indicate the end of a statement?
- A.
, - B.
; - C.
. - D.
:
4. Which of the following is a valid C++ data type?
- A.
float32 - B.
longint - C.
double - D.
character
5. What is the default value of an uninitialized local variable in C++?
- A. 0
- B. NULL
- C. Undefined
- D. Garbage value
6. Which keyword is used to declare a constant in C++?
- A.
constant - B.
static - C.
const - D.
final
7. Which of the following is a valid declaration of an integer variable in C++?
- A.
int 1x; - B.
int x; - C.
int x, y; - D. Both B and C
8. What is the output type of cin in C++?
- A. Integer
- B. Character
- C. Stream
- D. Void
9. Which of the following is the correct way to read an integer input from the user in C++?
- A.
cin >> x; - B.
scanf("%d", x); - C.
read(x); - D.
input(x);
10. Which operator is used to assign values to variables in C++?
- A.
== - B.
= - C.
+= - D.
:=
11. Which of the following operators is used for addition in C++?
- A.
+ - B.
- - C.
* - D.
/
12. What is the purpose of the relational operators in C++?
- A. To perform arithmetic operations
- B. To compare two values
- C. To manipulate bits
- D. To assign values to variables
13. Which of the following is a valid relational operator in C++?
- A.
<< - B.
== - C.
& - D.
!=
14. Which of the following is true about the && operator in C++?
- A. It is used for logical AND
- B. It is used for logical OR
- C. It is a bitwise AND operator
- D. It is used for string concatenation
15. Which of the following is a bitwise operator in C++?
- A.
& - B.
&& - C.
== - D.
||
16. What does the bitwise | operator do in C++?
- A. Performs logical OR
- B. Performs bitwise OR
- C. Assigns values
- D. Performs division
17. Which of the following is an arithmetic operator in C++?
- A.
!= - B.
+ - C.
&& - D.
&
18. What is the purpose of the ++ operator in C++?
- A. To increment a variable by 1
- B. To decrement a variable by 1
- C. To multiply a variable by 2
- D. To divide a variable by 2
19. Which of the following operators is used to perform division in C++?
- A.
/ - B.
* - C.
- - D.
=
20. Which operator is used to calculate the remainder in C++?
- A.
/ - B.
* - C.
% - D.
&
21. What will be the output of the following C++ expression: 10 % 3?
- A.
3 - B.
1 - C.
0 - D.
10
22. Which of the following is an example of a bitwise NOT operator in C++?
- A.
& - B.
| - C.
~ - D.
!
23. Which of the following operators is used for logical NOT in C++?
- A.
& - B.
| - C.
! - D.
~
24. What does the bitwise shift left operator << do in C++?
- A. Shifts the bits of a number to the right
- B. Shifts the bits of a number to the left
- C. Performs logical AND
- D. Performs logical OR
25. What is the purpose of the = operator in C++?
- A. Assigns values
- B. Compares values
- C. Adds values
- D. Multiplies values
26. What will be the output of the following C++ expression: 5 == 5?
- A.
true - B.
false - C.
1 - D.
0
27. Which operator is used to compare two values for equality in C++?
- A.
= - B.
== - C.
!= - D.
=|
28. Which of the following is true for the != operator in C++?
- A. It checks for equality
- B. It checks if two values are not equal
- C. It assigns values
- D. It adds two values
29. Which of the following is a valid assignment operator in C++?
- A.
= - B.
== - C.
+= - D. All of the above
30. Which operator is used for compound assignment in C++?
- A.
= - B.
+= - C.
-= - D. All of the above
Answer Key
| QNo | Answer |
|---|---|
| 1 | C. Preprocessor directives, main function, return statement |
| 2 | C. cout << "Hello, World!"; |
| 3 | B. ; |
| 4 | C. double |
| 5 | C. Undefined |
| 6 | C. const |
| 7 | D. Both B and C |
| 8 | C. Stream |
| 9 | A. cin >> x; |
| 10 | B. = |
| 11 | A. + |
| 12 | B. To compare two values |
| 13 | B. == |
| 14 | A. It is used for logical AND |
| 15 | A. & |
| 16 | B. Performs bitwise OR |
| 17 | B. + |
| 18 | A. To increment a variable by 1 |
| 19 | A. / |
| 20 | C. % |
| 21 | B. 1 |
| 22 | C. ~ |
| 23 | C. ! |
| 24 | B. Shifts the bits of a number to the left |
| 25 | A. Assigns values |
| 26 | A. true |
| 27 | B. == |
| 28 | B. It checks if two values are not equal |
| 29 | D. All of the above |
| 30 | D. All of the above |