200-550 question and answer

• Code:200-550  
• Click Here: more information
• Exam Demo:
• QUESTION NO: 1
  What is the output of the following code?
  echo '1' . (print '2') + 3;
  
  
  A. 123
  B. 213
  C. 142
  D. 214
  E. Syntax error
  
  
  Answer: D
  
  
  
  
  QUESTION NO: 2
  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
  
  
  Answer: C
  
  
  
  
  QUESTION NO: 3
  What is "instanceof" an example of?
  
  
  A. a boolean
  B. an operator
  C. a function
  D. a language construct
  E. a class magic
  
  
  Answer: B
  
  
  
  
  QUESTION NO: 4
  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
  
  
  Answer: D
  
  
  
  
  QUESTION NO: 5
  What is the output of the following code?
  $a = 'a'; $b = 'b';
  echo isset($c) ? $a.$b.$c : ($c = 'c').'d';
  
  
  A. abc
  B. cd
  C. 0d
  
  
  Answer: B