For any integer n greater than or equal to 2, you can represent its position in the Fibonacci sequence, starting the position numbering at 0, as follows:fibonacci(n) = fibonacci(n - 2) + fibonacci(n - 1)

________ is the most current and common email protocol for incoming email

Fill in the blank(s) with correct word

A system administrator wants to update a web-based application to the latest version. Which of the following procedures should the system administrator perform FIRST?

A. Remove all user accounts on the server B. Isolate the server logically on the network C. Block all HTTP traffic to the server D. Install the software in a test environment