QUIZ ON : c - INTRODUCTION

INTRODUCTION

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Question No# : 01 out of 50

Which of the following is not a keyword in C?

A. int

B. float

C. include

D. char

Question No# : 02 out of 50

Find the output of following code : <pre>int main() { int i=-2; printf (“-i=%d”,-i); return b; }</pre>

A. â€“i=2

B. i=-2

C. â€“i=-2

D. â€“i=+2

Question No# : 03 out of 50

C was primarily developed as

A. System programming language

B. General purpose language

C. Data processing language

D. None of the above

Question No# : 04 out of 50

What is the size of the int data type (in bytes) in C?

A. 4

B. 8

C. 16

D. 1

Question No# : 05 out of 50

What is the output of the following code:int x = 5;printf("%d", x++);

A. 4

B. 5

C. 6

D. Undefined

Question No# : 06 out of 50

What is the size of an int data type?

A. 4 Bytes

B. 8 Bytes

C. Depends on the system/compiler

D. Cannot be determined

Question No# : 07 out of 50

if a=8, b=3 and c=-5 are integers, then value of a*b/c is

A. -4

B. -2.8

C. +2.8

D. +3

Question No# : 08 out of 50

Which operator is used to access the address of a variable?

A. *

B. &

C. %

D. #

Question No# : 09 out of 50

printf (%d, printf (infomax));

A. results in a syntax error

B. output Infomax7

C. outputs garbage

D. outputs infomax and terminates abruptly

Question No# : 10 out of 50

In C, which function is used to obtain user input?

A. print()

B. scanf()

C. input()

D. All of the above

Question No# : 11 out of 50

When the following piece of code is executed, what happens?<pre>b = 3; a = b++;</pre>

A. a contains 3 and b contains 4

B. a contains 4 and b contains 4

C. a contains 4 and b contains 3

D. a contains 3 and b contains 3

Question No# : 12 out of 50

Which is the only C function all programs must contain?

A. start()

B. printf()

C. main()

D. getch()

Question No# : 13 out of 50

Identify the correct sequence of steps to run a c program

A. link, load, code, compile and execute

B. code, compile, link, execute and load

C. code, compile, link, load and execute

D. compile, code, link, load and execute

Question No# : 14 out of 50

Which one of the following is not a reserved keyword for C?

A. auto

B. case

C. main

D. default

Question No# : 15 out of 50

in C language the output of 14 % 4 is

A. 1

B. 2

C. 3

D. 4

Question No# : 16 out of 50

All keywords in C are in

A. LowerCase letters

B. UpperCase letters

C. CamelCase letters

D. None of these

Question No# : 17 out of 50

Which function is used to read a single character from the user in C?

A. getchar()

B. gets()

C. scanf()

D. cin.get()

Question No# : 18 out of 50

Which is an incorrect variable name?

A. Id_No

B. ID_NO

C. IdNo

D. Id No

Question No# : 19 out of 50

By default a real number is treated as a

A. float

B. double

C. long double

D. far double

Question No# : 20 out of 50

Which of the following is false in ‘C’ Programming Language

A. Keywords can be used as variable names

B. Variable names can contain digits

C. Variable names do not contain blank spaces

D. Capital letters can be used in variable names.

Question No# : 21 out of 50

Which of the following software translates source code into object code?

A. Compiler

B. Interpreter

C. Assembler

D. None of These

Question No# : 22 out of 50

In an assignment statement a=b; which of the following statement is true?

A. it Compare the variable a and the variable b are same.

B. The value of b is assigned to variable a but if b changes later, it will not effect the value of variable a.

C. The value of b is assigned to variable a but if b changes later, it will effect the value of variable a.

D. The value of variable a is assigned to variable b, and the value of variable b is assigned to variable a.

Question No# : 23 out of 50

Which keyword is used to prevent a variable from being modified?

A. final

B. constant

C. const

D. static

Question No# : 24 out of 50

Which of the following is true for variable names in C?

A. They can contain alphanumeric characters as well as special characters

B. It is not an error to declare a variable to be one of the keywords(like goto, static)

C. Variable names cannot start with a digit

D. Variable can be of any length

Question No# : 25 out of 50

Standard ANSI C recognizes ______ number of keywords?

A. 30

B. 32

C. 36

D. 40

Question No# : 26 out of 50

The conditional operator ( ? : ) is also known as

A. Binary operator

B. Unary operator

C. Ternary operator

D. All of the above

Question No# : 27 out of 50

The format identifier ‘%i’ is also used for _____ data type.

A. char

B. int

C. float

D. double

Question No# : 28 out of 50

Which of the following is not a valid C variable name?

A. int number;

B. float rate;

C. int variable_count;

D. int $main;

Question No# : 29 out of 50

in C language How will you print '\n' on the screen?

A. printf("\n");

B. echo '\n';

C. printf('\n');

D. printf('\\n')

Question No# : 30 out of 50

C Programming Language was developed and written by

A. Martin Richards

B. Dennis Ritchie

C. Ken Thompson

D. Herman Hellorith

Question No# : 31 out of 50

Which is valid C expression?

A. int my_num = 100,000;

B. int my_num = 100000;

C. int my num = 1000;

D. int $my_num = 10000;

Question No# : 32 out of 50

Which of the following can be used as a variable name?

A. no of students

B. char

C. 7th

D. myName

Question No# : 33 out of 50

What will be the output of the following code?<pre>int a = 10, b = 20; printf("%d", a + b);</pre>

A. 30

B. 1020

C. 10+20

D. Compiler error

Question No# : 34 out of 50

What is required in each C program?

A. Input data

B. The program does not require any function.

C. Output data

D. The program must have at least one function.

Question No# : 35 out of 50

What is the output of the following code?<pre>int a = 5; printf("%d", a == 5);</pre>

A. 0

B. 1

C. 5

D. Undefined

Question No# : 36 out of 50

What is the output of this statement <pre>printf("%d", (a++));</pre>

A. The value of (a + 1)

B. Error message

C. Garbage

D. The current value of a

Question No# : 37 out of 50

What is the difference between a declaration and a definition of a variable?

A. Both can occur multiple times, but a declaration must occur first.

B. A definition occurs once, but a declaration may occur many times.

C. Both can occur multiple times, but a definition must occur first.

D. A declaration occurs once, but a definition may occur many times.

Question No# : 38 out of 50

What will be the output of the following code?<pre>int x = 5; printf("%d", ++x);</pre>

A. 4

B. 5

C. 6

D. 7

Question No# : 39 out of 50

Which of the following cannot be used in identifiers?

A. Spaces

B. Digits

C. Underscores

D. Letters

Question No# : 40 out of 50

which Input function does not show the character read from the input device

A. scanf()

B. getch()

C. getche()

D. gets()

Question No# : 41 out of 50

What will be the output of the following code segment?<pre>int x = 24, y = 39, z = 45; z = x + y; y = z - y; x = z - y; printf("\n%d %d %d", x, y, z);</pre>

A. 24 39 63

B. 39 24 63

C. 24 39 45

D. 39 24 45

Question No# : 42 out of 50

What will be output if you will compile and execute the following c code?<pre>int main() { int a=5; float b; printf("%d",sizeof(++a+b)); printf(" %d",a); return 0; }</pre>

A. 2 6

B. 4 6

C. 2 5

D. 4 5

Question No# : 43 out of 50

For 16 bit compiler allowable range for integer constants is

A. -3.4e38 to 3.4e38

B. -32767 to 32768

C. -32668 to 32667

D. -32768 to 32767

Question No# : 44 out of 50

What is the result of the following code: int a = 10, b = 20; printf("%d", a > b ? a : b);

A. 10

B. 20

C. 0

D. None

Question No# : 45 out of 50

Which one of the following are not valid variable names in C?

A. float_int, keyword, A1

B. ANSI, ascii, cpu

C. valid, variable, name

D. None of the above

Question No# : 46 out of 50

What will be output if you compile and execute the following ‘C’ code?<pre>void main() { int i=4,x; x=++i + ++i + ++i; printf("%d",x); }</pre>

A. 21

B. 18

C. 19

D. Compilation error

Question No# : 47 out of 50

What is the output of the following code: int x = 5; printf("%d", x++);

A. 4

B. 5

C. 6

D. Undefined

Question No# : 48 out of 50

What will be the output of the following pseudo code ?<pre>Integer a Set a =4 do print a + 2 a = a-1 while (a not equals 0) end while</pre>

A. 6 6 6 6

B. 6 5 4 3

C. 6 7 8 9

D. 6 8 10 12

Question No# : 49 out of 50

What will be the output of the following program? <pre>int main() { int x=5; printf(“%d %d %d”,x,x<<2,x>>2); }</pre>

A. 1 20 5

B. 5 1 20

C. 5 20 1

D. 20 1 5

Question No# : 50 out of 50

Who is father of C Language?

A. Bjarne Stroustrup

B. James A. Gosling

C. Dennis Ritchie

D. Dr. E.F. Codd