Which of the following is correct for specifying the default value?

During heavy INSERT, UPDATE, and DELETE activity, indexes slow down the performance. Which setting controls this behavior?

Read the following code snippet: 1. for filename in *; do 2. if [ -f $filename ]; then 3. ls -l $filename 4. file $filename 5. else 6. echo $filename is not a regular file. 7. fi 8. done What does '-f' in line 2 mean?

Which is the standard authentication module, which implements Basic HTTP authentication?

Which statement is true with regard to comparisons in PHP5?

Which is correct with regard to the sbin subdirectory of the root directory in Linux?

Which can be used to implement data validation while creating a table in MySql?

What is the precision limit for MySQL datatype DOUBLE?

What is the maximum allowable length of MySQL datatype VARCHAR?

Which of the following holds environment variables used when starting Apache?

The default PHP session lifetime is…