BCA KNOCKOUTS

What is the correct syntax to include a header file in C?

• header_file.h

• import header_file.h

• #include

• #include {header_file.h}

Which of the following is a valid variable declaration in C?

• float y;

• int x;

• char z = 'a';

• double 1a;

What does the 'printf' function do in C?

• The 'printf' function compiles the code in C.

• The 'printf' function stores data in a file.

• The 'printf' function outputs formatted text to the console.

• The 'printf' function reads input from the user.

Which operator is used to access a member of a structure in C?

• ::

• ->

• []

• .

What is the output of the following code: printf('%d', 5 + 2 * 3);?

• 9

• 10

• 8

• 11

Which of the following is a feature of C++?

• Procedural programming only

• Object-oriented programming support

• Limited to low-level programming

• No support for classes

What is the purpose of the 'new' keyword in C++?

• The 'new' keyword is used to define a function.

• The 'new' keyword is for declaring global variables.

• The 'new' keyword is used for dynamic memory allocation.

• The 'new' keyword is used to create a copy of an object.

Which of the following is a valid constructor in C++?

• ClassName()

• void ClassName()

• ClassName::ClassName()

• ClassName(int)

What does the 'this' pointer refer to in C++?

• The 'this' pointer is a keyword for defining new classes.

• The 'this' pointer refers to a static member of a class.

• The 'this' pointer is used to access global variables.

• The 'this' pointer refers to the current object instance in a class.

What is the output of the following code: cout << (5 > 3 ? 'A' : 'B');?

• B

• C

• A

• 5