I have just sat, and passed, another mock exam for the Zend PHP certification. The following questions came up in the test and I wondered if anyone would be able to help me out in obtaining the answers and the reasons (if possible). :-)


What is the best measure one can take to prevent a cross-site request forgery?

• Disallow requests from outside hosts
• Add a secret token to all form submissions
• Turn off allow_url_fopen in php.ini
• Filter all output
• Filter all input

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Using flock() to lock a stream is only assured to work under what circumstances?

• When running in a Linux environment local filesystem
• When accessing the stream of the local filesystem
• When running in a Windows environment and accessing a share
• When accessing a bi-directional stream
• When accessing a read-only stream

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In databases that do not support the AUTO_INCREMENT modifier, you must use a _________ instead to auto-generate a numeric incrementing key

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Many Thanks,
Picco

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