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 CCNA 640-802 

WAN Practice Questions    

Brief: CCNA exam requires  a good understanding of WAN concepts, terminology, and implementation using Cisco routers. We have given a few multiple choice questions to gauge your preparedness (yourself) of the subject before taking the exam!

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Q1: Cisco IOS supports MPPC (Microsoft Point-to-Point Compression algorithm) on one of the following encapsulation types. Choose the correct one.

A. HDLC

B. LAPB

C. PPP

D. Frame-Relay

Ans.: C

Explanation: Compression algorithms supported by Cisco IOS are:

Encapsulation Type Compression type supported by Cisco IOS
HDLC STAC
LAPB STAC, Predictor
PPP STAC, Predictor, MPPC
Frame-Relay STAC, FRF.9

PPP is supported by STAC, Predictor, and MPPC. Compression algorithms supported by Frame-Relay for payload compression are STAC, and FRF.9.

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