SET 2 quiz

Which JOIN returns only matching rows from both tables?

• OUTER JOIN

• LEFT JOIN

• INNER JOIN

• RIGHT JOIN

What is the size of an int in most C compilers (32-bit)?

• 2 bytes

• 4 bytes

• 8 bytes

• 16 bytes

What is the return type of malloc()?

• int

• char*

• void*

• double

What keyword is used to define a constant in C?

• const

• final

• static

• immutable

Which loop is used when the number of iterations is unknown?

• for

• while

• do-while

• switch

What operator is used to access the address of a variable?

• &

• *

• ->

• %

What is the concept of wrapping data and functions together called?

• Encapsulation

• Inheritance

• Abstraction

• Polymorphism

What keyword is used for dynamic memory allocation in C++?

• malloc

• new

• calloc

• allocate

What is the default access specifier for class members in C++?

• public

• protected

• private

• internal

What is the keyword for defining an abstract class in C++?

• final

• virtual

• abstract

• base