200-500 Practice Exam Questions and Answers

A.  

xpathQuery()

B.  

xpath()

C.  

simpleXMLXpath()

D.  

query()

E.  

evaluate()

A.  

$xml->getElementById('2');

B.  

$xml->foo->bar->baz[2]['id']

C.  

$xml->foo->baz[2]['id']

D.  

$xml->foo->bar->baz[1]['id']

E.  

$xml->bar->baz[1]['id']

A.  

Database connections are closed after each SQL statement is executed

B.  

Database connections are closed at the end of each request

C.  

Database connections are only closed when the Web server shuts down

D.  

A single database connection may serve more than one PHP application at the same time

A.  

Yes

B.  

No

A.  

Apples are orange and Oranges are green

B.  

Apples are orange and Apples are green

C.  

Apples are apple and Oranges are green

D.  

Apples are apple and Apples are green

A.  

A scalar

B.  

An expression

C.  

A boolean

D.  

All of the above

A.  

...create applications that only a single user may use.

B.  

...have just one single instance of an object in the entire application.

C.  

...have only one instance of each object in a collection of objects.

A.  

the $_FILES super-global

B.  

the input stream php://stdin

C.  

the $_POST super-global

D.  

the global variable scope

A.  

Store session data in a different location with session.save_path

B.  

Store session data in a database.

C.  

Enable safe_mode.

D.  

Set session.name to something unique.

A.  

A) rmdir()

B.  

B) unlink()

C.  

C) rm()

D.  

D) delete()

E.  

E) delete_file()