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Zend-Technologies Zend PHP 5.3 Certification Sample Questions:

1. Which of the following statements are NOT true?

A) SimpleXML allows removal of attributes.
B) SimpleXML allows addition of new nodes.
C) SimpleXML allows removal of nodes.
D) None of the above
E) SimpleXML allows addition of new attributes.

2. Webservices are primarily meant to support

A) machine-to-machine interaction
B) business-to-business communication
C) improved accessibility for websites

3. After executing a query on a database server, PHP offers several functions to read the resulting lines, such as mysqli_fetch_assoc, pg_fetch_row, oci_fetch,etc.). If such functions do not return any rows, it means: (Choose 2)

A) the transaction has been rolled back
B) the query was too slow to execute
C) the connection to the database server was disconnected during query execution
D) a SELECT statement returned no rows

4. Consider the following XML code:
<?xml version="1.0" encoding="utf-8"?>
<books>
<book id="1">PHP 5 Power Programming</book>
<book id="2">Learning PHP 5</book>
</books>
Which of the following SimpleXML calls print the name of the second book?
(Let $xml=simplexml_load_file("books.xml");) (Choose 2)

A) echo $xml->book[1];
B) $c = $xml->children(); echo $c[1];
C) echo $xml->books->book[1];
D) echo $xml->books->book[2];
E) echo $xml->xpath("/books/book[@id=2]");

5. You are creating an application that repeatedly connects to a database to retrieve order data for invoices. All data comes from the same database. In order to preserve resources, you have to ensure that only one database connection should be used at any time. The code also has to open as few new database connections as possible. Which design pattern should you use for this scenario?

A) MVC
B) Singleton
C) Adapter
D) Factory

Solutions: