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You are to implement encapsulation on a WAN link and decided to use PPP instead of HDLC. What are some features in PPP that is not available in HDLC? (Choose two)
HSRP
Redundancy
Authentication
Link Quality Management
Load Balancing
PPP have features that are not available in HDLC. One is Link Quality which monitors the quality of the link. If too many errors are detected, PPP takes the link down. Authentication is also a feature in PPP that are not available in HDLC. PPP supports CHAP (and.. MsCHAP) and PPP authentication protocols. CHAP encrypts messages while PAP send messages in cleartext.
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