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Thread: What Does "Challenge and Response" Mean
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Old 9th June 2008 | 08:33
  #21 (permalink)  
blueplume
 
Joined: Oct 2004
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From: Body
Simple:

Challenge and response =

PNF "Altimeters"

PF "Passing FL 120, descending 60, 1013 set"

PNF "Check"

Read and Do = PNF read and do...!
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