Questions on Module1 & 2

Computer H/W & S/W

100

In a computer keyboard the Alt, Ctrl, Shift, Del & Insert keys are known as     

A.Standard keys    

B.Function keys   

 C.Navigation keys   

 D.Special purpose keys

 

D.Special purpose keys

200

• Software is the ____.

1. parts of the computer that can’t be seen  
2. parts of the computer that can be seen 
3. none of these

• parts of the computer that can’t be seen  ✔

300

• Which one of the following is the Software?

1. Monitor
2. Keyboard
3. Hard Disk
4. MS Paint  

• MS Paint  ✔

400

• A microprocessor is ____.

1. A combined unit of monitor and keyboard
2. A combined unit of ALU and CU 
3. A combined unit of CPU and UPS 
4. None of these

2. A combined unit of ALU and CU ✔

500

A computer’s type, processor, and operating system define its

a) brand

b) size

c) platform

d) speed

e) none of these

                       

Answer: (d)

Datatypes

100

Which data type is most suitable for storing a number 65000 in a 32-bit system?        

• A. short                        
•  B. int                        
•  C. long                        
•  D. double                        

 A. short  

200

Which of the following is a User-defined data type?        

•  A. typedef int Boolean;                        
•  B. typedef enum {Mon, Tue, Wed, Thu, Fri} Workdays;                        
•  C. struct {char name[10], int age};                        
•  D. All of the mentioned                        

D. All of the mentioned        

300

 Which of the following cannot be a variable name in C?

A. TRUE
B. friend
C. export
D. volatile

          

   Ans : D

400

What is short int in C programming?        

•  A. Basic data type of C                        
•  B. Qualifier                        
•  C. short is the qualifier and int is the basic datatype                        
•  D. All of the mentioned.                                                                                           

 

 Answer: Option C

500

1. How many keywords are there in c ?

A. 31
B. 32
C. 64
D. 63

Ans : B

Operators

100

Output of an arithmetic expression with integers and real numbers is ___ by default?

                        

a) Integer

 b) Real number                  

c) Depends on the numbers used in the expression

d) None of the above

Answer: B

200

What is the value of a?

                        

int a = 10 + 4.867;

                        

a) a = 10
                            b) a = 14.867
                            c) a = 14
                            d) compiler error
                            

                        

                                                    

Answer: C

300

Can you use C Modulo Division operator % with float and int?                 

a) Only int variables
b) Only float variables

 c) int or float combination
d) Numerator int variable, Denominator any variable

Answer: A

400

What is the other name of Question Mark Colon Operator?                        

a) Comparison Operator
                            b) If-Else Operator
                            c) Binary Operator
                            d) Ternary Operator

Answer: D

500

In C programming language, which of the following type of operators have the highest precedence

                        

a) Relational Operators
                            b) Equality Operators
                            c) Logical Operators
                            d) Arithmetic Operators

Answer: D

I/O Functions

100

#include <stdio.h>

 int main() {   

 int x = 1, y = 2;   

 printf("%d", x, y);   

 return 0; } 

A. 1
B. 2
C. Compilation Error
D. Garbage Value

Ans : A

200

#include <stdio.h>

 int main()

 {    char str[25];  

  printf(" %d ",printf("c-letsfind"));    

return 0; }

A. 10 c-letsfind
B. 9 c-letsfind
C. c-letsfind  9
D. c-letsfind  10

Ans : D

 Explanation: Inner printf() will print first and then outer printf will display the length of the inner printf's string.

300

What error will be generated on using incorrect specifier for the datatype being read?
a) compile error
b) run-time error
c) logical error
d) no error

Answer: b
Explanation: Using an incorrect specifier for the datatype being read will generate a run-time error.

400

scanf returns as its value

a.Number of successfully matched and assigned input items

b.Nothing

c.Number of characters properly printed

d.Error

A:Number of successfully matched and assigned input items

500

For floating point numbers, the precision flag specifies the number of decimal places to be printed. When no precision modifier is specified, printf() prints _______
a) six decimal positions
b) five decimal positions
c) four decimal positions
d) three decimal positions

Answer: a
Explanation: Its format can be given as “. m”, where m specifies the number of decimal digits when no precision modifier is specified, printf prints six decimal positions.

Conditional or Branching

100

Choose a C Conditional Operator from the list.

A) ?:

B) :?

C) :<

D) <:

A:A)

200

Choose a syntax for C Ternary Operator from the list.

A) condition ? expression1 : expression2

B) condition : expression1 ? expression2

C) condition ? expression1 < expression2

D) condition < expression1 ? expression2

Answer: A

300

Which is the alternative to SWITCH in C language?

a) If
b) Else
c) If-Else
d) All of these

Answer:- d) All of these

We can implement a SWITCH statement using IF, ELSE, and ELSE IF control statements.

400

In the SWITCH-CASE statement the default case must be used?

a) TRUE
b) FALSE

Answer:- b) FALSE

The use of default case in the SWITCH-CASE statement is optional.

500

What is the maximum number of ELSE-IF statements that can be present in between starting IF and ending ELSE statements?

a) 32
b) 64
c) 128
d) None

r Answer:- d) None