C++ Bootcamp 2k24

Who developed C++ programming language?

• Dennis Ritchie

• Prajwal Shah

• James Gosling

• Bjarne Stroustrup

Answer explanation

C++ was developed by Bjarne Stroustrup, as an extension to C language.

What are the features of C++? (Multiple correct)

• Object Oriented Programming Language

• Standard Template Library (STL)

• Very very simple language

• Worst memory management

Answer explanation

Advantages of C++ Language:

1. I)Object Oriented Programming Language.

2. II)Standard Template Library (STL).

3. III)Better memory management.

Disadvantages of C++ Language:

IV)Complex programming language.

Which one of the following is not a Keyword in C++ Language?

• free

• auto

• if

• int

Answer explanation

In C++, the term "free" is commonly associated with memory management functions, particularly with the free function.

So it is a function not keyword!

Which one of the following is a Derived Data Type?

• int

• float

• pointer

• char

Answer explanation

I) int-primitive data type

II)class - user-defined data type

III) Structure - user-defined data type

IV) pointer-derived data type

Which of the following is a correct identifier in Cpp?

• INT_1234

• 7VAR_NAME

• $var_name

• 5variable

Answer explanation

1. INT_1234 - Correct identifier

2. 7VAR_NAME - Incorrect identifier (starts with a digit)

3. $var_name - Incorrect identifier (contains a dollar sign, which is not allowed)

4. 5variable - Incorrect identifier (starts with a digit)

 Which is more effective while calling the C++ functions?

• call by surname

• call by name

• call by reference

• call by value

Answer explanation

Call by reference implement pointers i.e.

do not copy data before operations!

What will be the output (if possible)?

• Compilation Error

• We Love C Plus Plus

• We Love C Plus Plus

  0

• WeLoveCPlusPlus0

Answer explanation

endl : used to print new line in output

Which operators can be used to find if the number is odd or even?

• &

  (bitwise and)

• %

  (modulo)

• • -

  • (arithmetic subtraction)

• !

  (not operator)

Answer explanation

& (bitwise and) - can be done if you do

bitwise AND with 1 .

if answer of num&1 is 1 the number is odd

else even.

% (modulo) - gives you the remainder

if num%2 gives 1 number is odd

else even.

What is a function in C++?

• A variable declaration

• A way to define classes

• A code block that performs a specific task

• A data structure for storing elements

Answer explanation

A function is a block of code that performs a specific task.

Consider A is a 3 X 3 matrix, Eren wants to access the number 8 to do the rumbling! How can he access the number 8?

• A[2][1]

• A[1][1]

• A[2][2]

• A[2][0]

Answer explanation

This is how a 2D array's indexing looks like!

(x,y) : x - Xth Row, y - Yth Column.