(1) To send outgoing signals back to the receiving side for testing purposes. See loopback address and loopback plug.
(2) To go back to the beginning of a subroutine in a program. See loop and infinite loop.
"loop back." YourDictionary, n.d. Web. 09 November 2018. <https://www.yourdictionary.com/loop-back>.
loop back. (n.d.). Retrieved November 09th, 2018, from https://www.yourdictionary.com/loop-back
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