PHP Programming Mock Test 6

10%

Question 1 of 10

1. Which one of the following keywords are used to define an abstract class?

implements

extends

abstract

new

Question 1 of 10

Question 2 of 10

2. Which one of the following class can not be instantiated?

every class

abstract class

inherited class

constant class

Question 2 of 10

Question 3 of 10

3. PHP provides built-in interceptor methods, which can intercept messages sent to undefined methods and properties. This is also known as _________

overbinding

overriding

overloading

overbending

Question 3 of 10

Question 4 of 10

4. Which one of the following functions will you use to check that the class exists before you work with it?

class_exists()

exists_class()

class_exist()

exist()

Question 4 of 10

Question 5 of 10

5. Inheritance in class diagrams is depicted by________

double-headed empty arrow

single-headed filled arrow

single-headed empty arrow

double-headed filled arrow

Question 5 of 10

Question 6 of 10

6. Which keyword is used to put a stop on inheritance?

final

break

stop

end

Question 6 of 10

Question 7 of 10

7. Output:

    namespace main;
    com\getinstance\util\Debug::helloWorld()
PHP Fatal error: Class 'main\com\getinstance\util\Debug' not found in ...

Using which one of the following PHP lines will the error be removed?

getinstance\util\Debug::helloWorld();

\\com\getinstance\util\Debug::helloWorld();

main.com\getinstance\util\Debug::helloWorld();

\com\getinstance\util\Debug::helloWorld();

Question 7 of 10

Question 8 of 10

8. Which one of the following is displayed in the third section of the class diagram?

Abstraction

Inheritance

Coupling

Operations

Question 8 of 10

Question 9 of 10

9. Which one of the following is the correct way of declaring a namespace?

namespace(my);

namespace my;

namespace my();

my namespace;

Question 9 of 10

Question 10 of 10

10. Which keyword must be added before $first variable on the third line of the above question to make $second and $first as distinct objects in PHP 5?

copy

clone

Can't add any word to make them distinct

cut

Question 10 of 10