50 câu hỏi trắc nghiệm thuộc 400 Câu hỏi trắc nghiệm lập trình C/C++ có đáp án (Phần 3) - vietjack.online

400 Câu hỏi trắc nghiệm lập trình C/C++ có đáp án

400 Câu hỏi trắc nghiệm lập trình C/C++ có đáp án (Phần 3)

4823 lượt thi
50 câu hỏi
60 phút

BẮT ĐẦU LÀM BÀI

Danh sách câu hỏi

Câu 1:

Maximum number of arguments that a function can take is 12

A. Yes

B. No

Chọn B

Câu 2:

Usually recursion works slower than loops

A. Yes

B. No

Chọn A

Câu 3:

In a function two return statements should never occur.

A. Yes

B. No

Chọn B

Câu 4:

There is a error in the below program. Which statement will you add to remove it

Media VietJack

A. Add prototype: float f(int, float);

B. Add prototype: float f(a, b);

C. Add prototype: float f(float a, int b)

Chọn A

Câu 5:

Every function must return a value

A. Yes

B. No

Chọn B

Câu 6:

Which of the following statements are correct about the program?

Media VietJack

A. It prints garbage values infinitely

B. Runs infinitely without printing anything

C. Error: main( ) cannot be called inside printf( )

D. No Error and print nothing

Chọn B

Câu 7:

Will the following functions work?

Media VietJack

A. Yes

B. No

Chọn B

Câu 8:

If a function contains two return statements successively, the complier will generate warnings. Yes / No?

A. Yes

B. No

Chọn B

Câu 9:

Functions can not return a floating point number

A. Yes

B. No

Chọn B

Câu 10:

What will be the output of the program?

Media VietJack

A. 543210

B. 54321

C. 12345

D. Infinite loop

Chọn D

Câu 11:

What will be the output of the program?

Media VietJack

A. 4

B. 5

C. 6

D. Another

Chọn A

Câu 12:

Point out a error of the following program

Media VietJack

A. Missing parenthesis in return statement

B. The function should be defined as int f(int a, int b)

C. Re-declaration of a

D. None of above

Chọn B

Câu 13:

Point out the error in the program

Media VietJack

A. Error: Prototype declaration

B. No error

C. Error: return statement cannot be used with conditional operators

D. None of above

Chọn C

Câu 14:

What will be the output of the program?

Media VietJack

A. 6 6

B. 5 6

C. Complier error

D. None of above

Chọn A

Câu 15:

What will be output of the program?

Media VietJack

A. 4, 3, 4, 3

B. 4, 4, 5, 5

C. 3, 4, 3, 4

D. None of above

Chọn A

Câu 16:

Which of the following statements are correct about this function

Media VietJack

A. The function calculates the value of 1 raised to power n

B. The function calculates the factorial value of an integer

C. The function calculates the square root of an integer

D. None of above

Chọn B

Câu 17:

Point out the error in the following program

Media VietJack

A. Error: cannot convert ‘void’ to ‘int’

B. Error:

Chọn A

Câu 18:

What will be output when you will execute following c code? Biết kích thước kiểu char : 1 byte, float : 4 byte, int : 4 byte, double : 8 byte, long : 4 byte.

Media VietJack

A. 8 4 1

B. 8 2 1

C. 4 4 1

D. Depend on complier

Chọn A

Câu 19:

What will be output when you will execute following c code?

Media VietJack

A. 1 4 5

B. 1 4 7

C. 8 4 7

D. Another

Chọn A

Câu 20:

What value gets printed by the program below?

Media VietJack

A. 1

B. 0

C. 0.1

Chọn B

Câu 21:

What will be output when you will execute following c code?

Media VietJack

A. -6

B. 5

C. 4

D. Another

Chọn A

Câu 22:

What will be output when you will execute following c code?

Media VietJack

A. Avatar

B. Alien

C. Error at (*)

D. Another

Chọn A

Câu 23:

What will be output when you will execute following c code?

Media VietJack

A. 7

B. 8

C. 9

D. Another

Chọn B

Câu 24:

What is output ?

Media VietJack

A. 4

B. 0

C. 1

D. 5

Chọn A

Câu 25:

What is output ?

Media VietJack

A. 7

B. 6

C. 5

D. 1

Chọn A

Câu 26:

What is output ?

Media VietJack

A. 0

B. Error

C. 1

D. x isn’t defined

Chọn C

Câu 27:

What is output ?

Media VietJack

A. 0

B. 1

C. Error Comlier

Chọn A

Câu 28:

What is output ?

Media VietJack

A. 1 1

B. 1 0

C. ‘x’ undeclared identifier

Chọn C

Câu 29:

Output of following code?

Media VietJack

A. 1

B. 0

C. Error

Chọn C

Câu 30:

Output of following code?

Media VietJack

A. 1

B. Error

C. 0

Chọn C

Câu 31:

Output of following code?

Media VietJack

A. 0123456789

B. 0000000000

C. 0101010101

Chọn A

Câu 32:

Output of following code?

Media VietJack

A. 1

B. 5

C. 20

D. ‘x’ isn’t defined

Chọn B

Câu 33:

What is output?

Media VietJack

A. Garbage Garbage Garbage

B. 5 10 15

C. 15 10 5

D. Run time error

Chọn A

Câu 34:

What is output?

Media VietJack

A. c:/tc/bin/rw.c

B. c: c inw.c

C. c:cinw.c

D. w.c in

Chọn D

Câu 35:

What is output ?

Media VietJack

A. 5

B. 6

C. 0

D. Complier error

Chọn D

Câu 36:

What is output?

Media VietJack

A. 135

B. 8

C. -121

D. 121

Chọn C

Câu 37:

What is output?

Media VietJack

A. 12480

B. 1248@

C. 12500

D. 12522

Chọn A

Câu 38:

What is output?

Media VietJack

A. Hi

B. Hello

C. None of above

Chọn A

Câu 39:

What is output of program?

Media VietJack

A. i = 0

B. i = 1

C. Error

D. None of these

Chọn B

Câu 40:

Which of the declaration is correct?

A. int length;

B. char int;

C. int long;

D. float double;

Chọn A

Câu 41:

What is output of program?

Media VietJack

A. N = 20

B. N = 10

C. Error

D. No Output

Chọn A

Câu 42:

What is output of program?

Media VietJack

A. 0 0 0

B. 1 2 2

C. 1 1 1

D. Error

Chọn A

Câu 43:

What is output of program?

Media VietJack

A. 3

B. 4

C. Complier Error

D. 3.14

Chọn B

Câu 44:

Which of the following operations are INCORRECT?

A. int i = 35; i = i%5

B. short int j = 5; j = j;

C. long int k = 123L; k = k;

D. float a = 3.14; a = a%3;

Chọn D

Câu 45:

Point out a error in the following program

Media VietJack

A. Error: Declaration syntax error v (or) ‘v’: illegal use of type ‘void’

B. Program terminate abnormally

C. No error

D. None of these

Chọn A

Câu 46:

In the following program how long will the for loop get executed?

Media VietJack

A. The for loop would not get executed at all

B. The for loop would get executed only once

C. The for loop would get executed 5 times

D. The for loop would get executed infinite times

Chọn D

Câu 47:

Point out the error in the following program (if it is compiled with Turbo C complier)

Media VietJack

A. No error

B. display( ) is not declared

C. None of these

Chọn B

Câu 48:

Which of the following are unary operators in C?
1. !
2. sizeof
3. ~
4. &&

A. 1, 2

B. 1, 3

C. 2, 4

D. 1, 2, 3

Chọn D

Câu 49:

In the expression a = b = 5 the order of Assignment is NOT decided by Associativity of operators.

A. True

B. False

Chọn B

Câu 50:

Which of the following is the correct order if calling functions in the below code?

A. f1, f2, f3

B. f3, f2, f1

C. Order may vary from complier to complier

D. None of above

Chọn C

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