A wireless LAN is one that uses ________ to transmit data

Answer the following statements true (T) or false (F)

1. The .exrc file contains commands that are activated every time vi is invoked. 2. To use the vi editor you must have a .exrc file in your home directory. 3. You can run shell commands right from the vi command line. 4. The set command lets you set the vi environment variables. 5. If ignorecase option of the vi is set, everything you type is converted to lower case letters.

The ____ function removes duplicate elements from an array.

A. array_dup() B. array_values() C. array_unique() D. array()