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

 Question

Which of the following can not be a variable name?

Ø area

Ø _area

Ø 10area

Ø area2

 

Question

Which looping process is best, when the number of iterations is known?

Ø for

Ø while

Ø do-while

Ø all looping processes require that the iterations be known

 

Question Which character is inserted at the end of string to indicate the end of string?

Ø new line

Ø tab

Ø null

Ø carriage return

 

Question

Which of the following header file defines the rand() function?

Ø iostream.h

Ø conio.h

Ø stdlib.h

Ø stdio.h

 

Question

Commenting the code _____________________

Ø Makes a program easy to understand for others.

Ø Make programs heavy, i.e. more space is needed for executable.

Ø Makes it difficult to compile

Ø All of the given options.

 

Question

What's wrong with this for loop?

for (int k = 2, k <=12, k++)

Ø the increment should always be ++k

Ø the variable must always be the letter i when using a for loop

Ø there should be a semicolon at the end of the statement

Ø the commas should be semicolons

 

Question

For which array, the size of the array should be one more than the number of elements in an array?

Ø int

Ø double

Ø float

Ø char

 

Question

The function of cin is

► To display message

► To read data from keyboard

► To display output on the screen

► To send data to printer

 

Question

In C/C++ language the header file which is used to perform useful task and manipulation of

character data is

► cplext.h

► ctype.h (Pg 188)

► stdio.h

► delay.h

 

Question

How many parameter(s) function getline() takes?

► 0

► 1

► 2

► 3

The member function getline() also takes three parameters: the buffer to fill, one more than the  maximum number of characters to get, and the termination character. getline()functions exactly like get() does with these parameters, except getline() throws away the terminating character.

.

Question

Word processor is

► Operating system

► Application software

► Device driver

For which values of the integer _value will the following code becomes an infinite loop?

int number=1;

while (true) {

cout << number;

if (number == 3) break;

number += integer_value; }

► any number other than 1 or 2

► only 0

► only 1

► only 2

Rational:

number += integer_value ………..above line decide the fate of loop so any thing other then zero leads

to value of 3 which will quite the loop. Only zero is the value which keeps the loop infinite.

 

Question

Each pass through a loop is called a/an

► enumeration

► Iteration

► culmination

► pass through

 

Question

A continue statement causes execution to skip to

► the return 0; statement

► the first statement after the loop

► the statements following the continue statement

► the next iteration of the loop

Continue statement is used, when at a certain stage, you don’t want to execute the remaining

statements inside your loop and want to go to the start of the loop.

 

Question

What is the correct syntax to declare an array of size 10 of int data type?

► int [10] name ;

► name[10] int ;

► int name[10] ;

► int name[] ;

Question

Consider the following code segment. What will the following code segment display?

int main(){

int age[10] = {0};

cout << age ;

}

► Values of all elements of array

► Value of first element of array

► Starting address of array

► Address of last array element

 

Question

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

intPtr += 3 ;

► 3 bytes

► 6 bytes

► 12 bytes

► 24 bytes

one int is 4 bytes so 4*3 = 12 bytes movement.

 

Question

If there are 2(n+1) elements in an array then what would be the number of iterations required to

search a number using binary search algorithm?

► n elements

► (n+1) elements

► 2(n+1) elements

► 2(n+1) elements

 

Question

Which of the following operator is used to access the value of variable pointed to by a pointer?

► * operator

► -> operator

► && operator

► & operator

 

Question

The ________ statement interrupts the flow of control.

► switch

► continue

► goto

► break

 

Question

Analysis is the -------------- step in designing a program

► Last

► Middle

► Post Design

► First

Analysis will be always followed by design and then code.

 

Question

Paying attention to detail in designing a program is _________

► Time consuming

► Redundant

► Necessary

► Somewhat Good

In programming, the details matter. This is a very important skill. A good programmer always

analyzes the problem statement very carefully and in detail. You should pay attention to all the

aspects of the problem.

 

Question

There are mainly------------------- types of software

►Two

►Three

►Four

►Five

 

Software is categorized into two main categories

• System Software

• Application Software

 

Question

In C/C++ the #include is called,

►Header file

►Preprocessor Directive (Pg 15)

►Statement

►Function

 

Question

&& is------------------ operator.

►An arithmetic

►Logical

►Relational

►Unary

we use logical operators ( && and || ) for AND and OR respectively with relational operators.

 

Question

In flow chart, the symbol used for decision making is,

►Rectangle

►Circle

►Arrow

►Diamond (Pg 51)

 

Question

C++ views each file as a sequential stream of________________

►Bytes

►Bits

►0’s or 1’s

►Words

 

Question

If the elements of an array are already sorted then the useful search algorithm is,

►Linear search

►Binary search (Pg 188)

►Quick search

►Random search

 

In binary search algorithm, the ‘divide and conquer’ strategy is applied.

This plies only to sorted arrays in ascending or descending order.