Based on the code given below, what will be the value of $num if mytable contains 12 records?

$result=mysql_query("DELETE from mytable");
$num=mysql_affected_rows();

Which statement is correct with respect to PHP connections?

Which is correct with regard to the statements given below? Statement 1: When you set up Apache on an Internet host it can respond to an HTTP request for that host. Statement 2: Apache does not allow virtual hosts to inherit configuration from the main server, which makes the virtual host configuration quite manageable in large installations.

Which is correct with regard to the statements given below? Statement 1: If the internal network uses nonroutable IP addresses for either security or cost reasons, you can use a proxy server to provide Internet resources to hosts that normally cannot access the Internet. Statement 2: Using a caching proxy such as Apache (with mod_perl), you can provide seemingly faster access to Internet resources to the local users.

Which statement is correct with respect to the get_browser function of PHP?

Which is true with regard to references in PHP?

What is MySQL?

You do not have to specify a length with which of the following MySQL datatypes?

What will this command cp file1 file2 do?

What is a superuser in mysql usually called ?

Which of the following Linux command can be used to change the group ownership of files ?