zend 200-710 practice test

Question 1

What is the difference between the spaceship operator (<=>) and the strcmp() function?

• A. There is no difference in functionality
• B. strcmp() returns a Boolean value, the spaceship operator a number
• C. strcmp() does a case-intensive comparison, the spaceship operator does not
• D. The spaceship operator returns -1, 0 or 1; strcmp() may return any integer

Question 2

Which of these error types may be handled by a user defined error handler function? (Choose two.)

• A. E_ERROR
• B. E_NOTICE
• C. E_PARSE
• D. E_WARNING

Question 3

CORRECT TEXT
What is the output of the following code?

Question 4

What is the output of the following code?

• A. string(0) “”
• B. bool(false)
• C. string(1) “!”
• D. string(2) “k!”

Question 5

Consider 3 PHP files that are called asynchronously via XmlHttpRequest:

Which of the following statements is true? (Choose two.)

• A. The total execution time for all 3 requests will be the maximum of the longest sleep() call
• B. The requests may be processed out of order
• C. The requests are guaranteed to be executed in order
• D. Concurrent requests will be blocked until the session lock is released

Question 6

What is the output of the following code?

• A. 1
• B. 2
• C. null

Question 7

What is the benefit of using persistent database connections in PHP? (Choose two.)

• A. Reduces the connection & authentication overhead of connecting to the database
• B. Ensures that only a single connection is open to the database from PHP
• C. Allows connection settings such as character set encoding to persist
• D. Allows for resumption of transactions across multiple requests.

Question 8

What is the output of the following code?

• A. MyNamespace\Test
• B. empty string
• C. parse error
• D. Test

Question 9

What function is best suited for extracting data from a formatted string into an array?

• A. fgetcsv
• B. sscanf
• C. sprintf
• D. strtok

Question 10

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

• A. LogicException
• B. RangeException
• C. DivisionByZeroError
• D. ArithmeticError

Question 11

CORRECT TEXT
Which value will be assigned to the key 0 in the following code?

Question 12

What is the output of the following code?
echo '1' . (print '2') + 3;

• A. 123
• B. 213
• C. 142
• D. 214 E: Syntax error

Question 13

What is the output of the following code?
$a = 3;
switch ($a) {
case 1: echo 'one'; break;
case 2: echo 'two'; break;
default: echo 'four'; break;
case 3: echo 'three'; break;
}

• A. one
• B. two
• C. three
• D. four

Question 14

What is "instanceof" an example of?

• A. a boolean
• B. an operator
• C. a function
• D. a language construct E: a class magic

Question 15

Which of the following may be used in conjunction with CASE inside a SWITCH statement?

• A. A scalar
• B. An expression
• C. A boolean
• D. All of the above