17. In PHP, what is the default visibility of class members?

What is encapsulation in PHP?

A). Hiding data implementation details

B). Exposing data publicly

C). Implementing interfaces

D). Inheriting properties

What does the protected access modifier mean in PHP?

A). Access to all

B). Access to parent class

C). Access to subclass

D). Restricted access

Which of the following is an advantage of inheritance in PHP?

A). Increases code reusability

B). Decreases code maintainability

C). Adds complexity to the code

D). Makes code less modular

In PHP, what is the purpose of the final keyword?

A). To mark a method as deprecated

B). To prevent a class from being inherited

C). To specify a constant value

D). To define a global variable

What does the final keyword do when applied to a method in PHP?

A). Mark as deprecated

B). Prevent override

C). Define as abstract

D). Enable instantiation

What is the purpose of the interface keyword in PHP?

A). Finalize a class

B). Define a contract

C). Abstract a class

D). Create a subclass

What is the main purpose of encapsulation?

A). To make classes more readable

B). To hide implementation details

C). To increase code complexity

D). To prevent inheritance

Which access modifier in PHP restricts access to class members?

A). public

B). protected

C). private

D). access

In PHP, what is the purpose of the abstract keyword?

A). To specify a class as final

B). To specify a class as abstract

C). To prevent a class from being instantiated

D). To mark a method as deprecated

Which keyword is used to access static properties or methods in PHP?

A). this

B). parent

C). self

D). static