COMPUTER SCIENCE XI
2022
Choose the correct alternative for the following: 1*40=40
Term II Examination
Section A 2*5=10
1. Who developed C++, where and when?
Ans:- B Jarne Stroustrup at AT & T Bell Laboratory in USA in 1980.
2. Define Token.
Ans:- The Smallest individual unit of C++ Program is called Token.
3. Which header file will be required for the following built –in function?
4. What data types would you use to represent the following terms?
i) The average marks in a class
Ans:- float
ii) The number of students in a class
Ans:- int
iii) Name of a Student
Ans:- char ar[10]
iv)The population of a city
Ans:- long
5. What will be the result of the following expressions when A=10?
i) X=++A*3
Ans:- 33
ii) X=A++ *5+2
Ans:- 52
6. Give any two examples of derived data type.
Ans:- Array,Pointer
7. What will be the output of the following C++ code fragment ?
for(int I=1; I<=10; I+=3)
{
cout<< I<<”\n”;
}
Ans:-
1
4
7
10
Section B 3*5=15
8. Differentiate between keyword and identifier.
Ans: – Differences Between keyword and Identifier
Keywords:- It is a Reserve word that has fixed meaning that meaning can’t be changed. Example char , int , float ,long ,if , else , for, while etc…
Identifier:- It is a user defined word. like variable name,Array name, function name, class name etc
9.What are fundamental and derived data types ? Explain with example.
10.What is structure ? Give suitable example.
11.What do you mean by unary, binary and ternary operators ? Explain by giving example.
12. Differentiate between while and do while loops.
Ans:-
While Loop
It’s is Entry control Loop. It executes its body when specified condition is true.
syntax
while(test condition)
{
//body of the loop
}
do -while loop
While Loop It’s is Exit control Loop. It executes its body at least once whether specified condition is true or false.
syntax
do
{
//body of the loop
}while(test condition);
13.Name the jump statements provided by C++. Explain about any two.
14. Write the purpose of the following functions:
a) pow( )
b) isalpha( )
c) strcmp( )
Section C 5*3=15
15.What are literals in C++ ? How many types of literals are allowed in C++ ?
16. Explain any two of the following with reference to C++:
i) Selection statement
ii) Iteration statement
17. Write a program in C++ to find the sum of the following series:
Sum= 1+3+5+………………N
18. Write a program in C++ to print the multiplication table of N.
19. Explain switch statement with syntax and example.
12th Computer Science Important Program
C++ Programming
C++ Programming Language Tutorial
Translators in Programming languages
Tokens in C++ Programming Language
Operators in C++ Programming Language
Conditional statements in C++ Language
Switch Statement in C++ Language
Loops / Iteration statement in C++ Language
Jump statements in C++ with best example
Arrays in C++ Programming Language
Functions in C++ Programming Language
Passing Arguments in Functions
Method / Function overloading in C++
String Functions in C++ with Example
Boolean Algebra
Introduction to Boolean Algebra- Best concepts
Important Law of Boolean algebra with Best concepts
Logic Gates and their types -Best Concept
De Morgan’s Law and their Applications
Applications of Boolean Algebra in Computer Science
DBMS
Introduction to DBMS | Database Management System
Communication and Network Concept
Introduction to Communication and Networks
