Drag and drop each WAN encapsulation on the left to its matching use case on the right.
Drag a concept onto its matching description — or click a concept then click the description.
Default serial encapsulation on Cisco routers
Supports PAP/CHAP authentication and multilink
Used for DSL broadband connections
Legacy Layer 2 VPN using DLCIs
Bonding multiple PPP links for higher bandwidth
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
HDLC: Default serial encapsulation on Cisco routers
HDLC is default synchronous serial encapsulation. PPP supports authentication and multilink. PPPoE is used over DSL. Frame Relay is legacy L2 VPN. MLPPP bonds multiple links.
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Last reviewed: Jun 18, 2026
This 350-401 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 350-401 exam.
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