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Zend 200-550 Exam
Zend Certified PHP Engineer (Page 6 )

Updated On: 30-Jan-2026
Page 6 of 46
PDF with 223 Questions

Transactions should be used to: (Choose 2)

  1. Prevent errors in case of a power outage or a failure in the SQL connection
  2. Ensure that the data is properly formatted
  3. Ensure that either all statements are performed properly, or that none of them are.
  4. Recover from user errors

Answer(s): A,C



An unbuffered database query will: (Choose 2)

  1. Return the first data faster
  2. Return all data faster
  3. Free connection faster for others scripts to use
  4. Use less memory

Answer(s): A,D



Which technique should be used to speed up joins without changing their results?

  1. Add indices on joined columns
  2. Add a WHERE clause
  3. Add a LIMIT clause
  4. Use an inner join

Answer(s): A



Consider the following XML code:
<?xml version="1.0" encoding="utf-8"?>
<books>
<book id="1">PHP 5.5 in 42 Hours</book>
<book id="2">Learning PHP 5.5 The Hard Way</book>
</books>
Which of the following SimpleXML calls prints the name of the second book?
(Let $xml = simplexml_load_file("books.xml"); .) (Choose 2)

  1. echo $xml->books->book[2];
  2. echo $xml->books->book[1];
  3. echo $xml->book[1];
  4. echo $xml->xpath("/books/book[@id=2]");
  5. $c = $xml->children(); echo $c[1];

Answer(s): C,E



What method can be used to find the tag <any> via the DOM extension?

  1. getElementById()
  2. getElementsByTagName()
  3. getElementsByTagNameNS()
  4. getElementByName()
  5. findTag()

Answer(s): B



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Viewing questions 26 - 30 out of 223 questions



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