Failure to follow Ruby's syntax rules when formulating script statements can result in an error that prevents your script from executing.

The shorthand up/up refers to which two status codes resulting from the show interfaces command?

A) Line status and protocol status B) Layer 1 status and Layer 3 status C) Interface status and connection status D) Media status and routing status

Which tool should an application developer use to help identify input validation vulnerabilities?

A. scanner B. filter C. fuzzer D. sniffer