200-710 sample questions

Question 1

What is the output of the following code?

Accepted Answer

1

Answer

2

Answer

6

Answer

7

Question 2

What exception type will catch the error raised by the expression 2 / 0?

Accepted Answer

DivisionByZeroError

Answer

Logic Exception

Answer

RangeException

Answer

ArithmeticError

Question 3

Which of the following statements about SOAP are NOT true?

Accepted Answer

SOAP requires developers to use WSDL.

Answer

SOAP is also a request-/response-based protocol.

Answer

SOAP can be transported using SMTP, HTTP and other protocols.

Answer

SOAP traffic via HTTP can be encrypted and compressed just like other HTTP requests.

Question 4

Given a DateTime object that is set to the first second of the year 2017, which of the following samples will correctly return a date in the format ‘2017-01-01 00:00:01 ’?

Accepted Answer

$datetime->format('Y-m-d H:i:s’)

Answer

$datetime->format(‘%Y-%m-%d %h:%i:%s’)

Answer

$datetime->format('%Y-%m-%d %h:%i:%s’, arrayfyear’, ‘month’, ‘day’, ‘hour’, ‘minute’, ‘second’))

Answer

$date = date(“Y-m-d H:i:s’, Sdatetime);

Question 5

Under what condition may HTTP headers be set from PHP if there is content echoed prior to the header function being used?

Accepted Answer

Output buffering is enabled

Answer

headers_sent() returns true

Answer

The client supports local buffering

Answer

The webserver uses preemptive mode

Question 6

What is the output of the following code?

Accepted Answer

33222

Answer

22333

Answer

33322

Answer

22233

Question 7

What is the output of the following code?

Accepted Answer

214

Answer

123

Answer

213

Answer

142

Answer

Syntax error

Question 8

Are PHP constants case-sensitive?

Accepted Answer

They are by default, but it is possible to create case-insensitive constants.

Answer

They are not by default, but it is possible to create case-sensitive constants.

Answer

Yes, they are always case-sensitive.

Answer

No, they are always case-insensitive.

Question 9

Which of the following is NOT possible using reflection?

Accepted Answer

Adding class methods

Answer

Analysing of nearly any aspect of classes and interfaces

Answer

Analysing of nearly any aspect of functions

Answer

Implement dynamic construction (new width variable class name)

Question 10

When would you use classes and when would you use namespaces?

Accepted Answer

Use classes to encapsulate code and represent objects, and namespaces to avoid symbol name collisions

Answer

Use classes for performance-sensitive code, and namespaces when readability matters more

Answer

Use namespaces for performance-sensitive code, and classes when readability matters more

Answer

Always use them; namespaces as always superior to classes

200-710 Sample Questions & Answers

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