Tag: computer science mcqs preparation

(A) Router
(B) Bridge
(C) Gateway
(D) Node

The answer is: (A) Router

(A) digital
(B) decimal
(C) analogue
(D) binary

The answer is: (D) binary

string var1 = “Computer “;
string var2 = “Science”;
string var3 = var1 + var2;
cout << var3 << endl;
If the program is run, what will be displayed on the screen?
(A) var3
(B) Computer
(C) Science
(D) Computer Science

The answer is: (D) Computer Science

string var1 = “Computer “;
string var2 = “Science”;
string var3 = var1 + var2;
cout << “var3” << endl;
(A) var3
(B) Computer
(C) Science
(D) Computer Science

The answer is: (A) var3

(A) syntax
(B) operator
(C) header file
(D) string constant

The answer is: (C) header file

string a = “4”;
string b = “8”;
string c = a + b;
cout << c << endl;
If the program is run, what will be displayed on the screen?
(A) 4
(B) 8
(C) 12
(D) 48

The answer is: (D) 48

(A) braces
(B) parentheses
(C) statement
(D) variable name

The answer is: (B) parentheses

(A) constant, variable
(B) variable, constant
(C) constant, constant
(D) variable, variable

The answer is: (A) constant, variable

(A) myvar;
(B) &myvar;
(C) cout << myvar;
(D) cout << &myvar;

The answer is: (D) cout << &myvar;

(A) debugging
(B) encapsulation
(C) overloading
(D) polymorphism

The answer is: (B) encapsulation