CS201 | MID Term |mcq by moaaz and asad with reference

 

CS201 | MID Term |mcq by moaaz and asad with reference

CS201 MID  TERM   A  DIRECTION  TO  PASS  INTRODUCTION  TO  PROGRAMMING 

CS201  MIDTERM  MCQS  MEGA  FILE

The address operator (&) can be used with,

►Statement

►Expression

►Variable

►Constant

 

Question

When a pointer is incremented, it actually jumps the number of memory addresses

►According to data type (Pg 160)

►1 byte exactly

►1 bit exactly

►A pointer variable can not be incremented

 

Question

Call by reference mechanism should be used in a program when there is

i. large amount of data to be passed

ii. small amount of data to be passed

iii. need to change the passed data

iv. no need to change the passed data

Choose the appropriate option for the above

► (i) and (ii) only

►(i) and (iii) only

►(ii) and (iii) only

►(ii) and (iv) only

 

Question

Which of the following is the starting index of an array in C++?

►0

►1

►-1

►any number

 

Question

The return type of a function that do not return any value must be __________

►int

►void

►double

►float

 

Question

Which of the following is an extension of header file?

►.exe

►.txt

►.h

►.c

 

Question

We want to access array in random order which approach is better?

►Pointers

►Array index (Pg 176)

►Both pointers and array index are better

►None of the given options.

 

Question

When we declare a multidimensional array the compiler store the elements of multidimensional array in the

form of,

►Columns

►Rows

►Contiguous memory location (Pg 174)

►Matrix

 

Question

In C/C++ the string constant is enclosed

► In curly braces

► In small braces

► In single quotes

► In double quotes

 

Question

The size of int data type is

 1 bytes

► 2 bytes

► 3 bytes

► 4 bytes (Pg 257)

 

Question

In Flow chart process is represented by

► Rectangle (Pg 51)

► Arrow symbol

► Oval

► Circle

 

Question

When we are using const keyword with a variable x then initializing it at the time of declaration is,

► Must

► Optional

► Not necessary

► A syntax error

 

Question

Which of the following is the correct way to assign an integer value 5 to element of a matrix say

‘m’ at second row and third column?

► m[2][3] = 5 ;

► m[3][2] = 5 ;

► m[1][2] = 5 ;

► m[2][3] = ‘5’;

 

Question

How many total elements must be in two-dimensional array of 3 rows and 2 columns?

► 4

► 5

► 6 (3*2=6)

► 7

 

Question

Which of the following is the correct statement for the following declaration?

const int *ptr.

Ø ptr is a constant pointer

Ø ptr is constant integer pointer

Ø ptr is a constant pointer to int

Ø ptr is a pointer to const int

 

Question

Consider the following code segment. What will be the output of this code segment?

int arr[6] = {2, 3, 7, 4, 5, 6} ;

int *ptr1 =&arr[1] ;

int *ptr2 = &arr[4] ;

cout << (ptr2-ptr1) ;

► 3

► 9

► 12

► 2

Question

What will be the correct syntax to assign an array named arr of 5 elements to a pointer ptr?

► *ptr = arr ;

►ptr = arr ;

►*ptr = arr[5] ;

►ptr = arr[5] ;

 

Question

C is a/an ______ language

►low level

►object based

► object oriented

►function oriented (Pg 77)

 

Question

The variables having a name, type and size are just like empty boxes.

► False

► True

Question

Most efficient method of dealing with structure variables is to define the structure globally

► True

► False

 

Question

Syntax of union is identical to ______

► Structure (pg 242)

► Class

► Function

► None of the given options

 

Question

In Program

commenting the code liberally is

► Useful.

► Time consuming

► Not necessary

Question :

If we want to store a string “abc” in an array str then the size of this array must be at least,

(a) 2

(b) 3

(c) 4

(d) 5

 

Question

:How many bytes will the pointer intPtr of type int move in the following statement?

intPtr += 3 ;

(a) 3 bytes

(b) 6 bytes

(c) 12 bytes

(d) 24 bytes

 

Question :

The remainder (%) operator is,

►An arithmetic operator (Pg 258)

►A logical operator

►A relational operator

►A division operator

Question :

When a call to function statement is encountered,

►The control is transfer to its Prototype

►The control is transfer to its definition

►The compiler stop execution of whole program

►The program hangs

 

Question :

The value of 2*15/3*7+3*2 is

Ø 146

Ø 76

Ø 8

Ø 70

 

Question:

Carefully analyze the following lines of code and chose the correct option.

ch1=”a”;

ch2=’a’;

Ø ch1 and ch2 are strings

Ø ch1 is string and ch2 is character

Ø ch2 is string and ch1 is character

Ø ch1 and ch2 are characters

 

Question :

The size of a double variable is

Ø 2 bytes

Ø 4 bytes

Ø 8 bytes

Ø 10 bytes

The size of an int is: 4 bytes.

The size of a short int is: 2 bytes.

The size of a long int is: 4 bytes.

The size of a char is: 1 bytes.

The size of a float is: 4 bytes.

The size of a double is: 8 bytes.

 

Question :

An array is also called

Ø an array variable

Ø array declaration

Ø struct

Ø constant pointer