Practice EtherChannel Questions Now
Start a timed practice session focusing on EtherChannel & Link Aggregation topics from the CCNA question bank.
Start CCNA Practice Quiz →CCNA EtherChannel Question Bank (2 Questions)
Browse all 2 practice questions covering EtherChannel & Link Aggregation for the CCNA certification exam. Each question includes the full answer and a detailed explanation to help you understand the concepts.
- Question 1Network Access
What is the difference between LACP and PAgP for EtherChannel?
Show Answer & Explanation
Correct Answer: BExplanation:LACP (802.3ad): industry standard, modes active (initiate) and passive (respond). PAgP: Cisco proprietary, modes desirable (initiate) and auto (respond). Both negotiate EtherChannel formation. LACP supports up to 16 links (8 active + 8 standby).
- Question 2Network Access
Which EtherChannel protocol is an IEEE standard that uses LACPDU messages to negotiate bundled links?
Show Answer & Explanation
Correct Answer: BExplanation:LACP (IEEE 802.3ad) is the industry-standard protocol for negotiating EtherChannel bundles using LACPDU messages. PAgP is Cisco-proprietary. Static EtherChannel (mode 'on') does not use any negotiation protocol. PAgP and PAGP refer to the same Cisco-proprietary protocol.
Key EtherChannel Concepts for CCNA
CCNA EtherChannel Exam Tips
EtherChannel & Link Aggregation questions in CCNA are typically scenario-based. Focus on service-level decision making aligned to official exam objectives. Priority concepts: etherchannel, lacp, pagp, port-channel, link aggregation, bundle.
What CCNA Expects
- Anchor your answer in select the most practical, secure, and scalable answer for the stated scenario.
- EtherChannel scenarios for CCNA are frequently mapped to Domain 2 (20%), so read the objective carefully before picking controls or architecture.
- Expect multi-service scenarios where EtherChannel interacts with IAM, networking, storage, or observability patterns rather than appearing as an isolated service question.
- When two options are both technically valid, prefer the choice that best aligns with the exam's operational scope (Associate) and managed-service best practices.
High-Value EtherChannel Concepts
- Know the core EtherChannel building blocks cold: etherchannel, lacp, pagp, port-channel.
- Review the edge-case features and limits for link aggregation, bundle; these details are commonly used to differentiate answer choices.
- Practice service-integration reasoning: how EtherChannel pairs with Switching, STP, Network Fundamentals in real deployment patterns.
- For CCNA, explain why the chosen EtherChannel design meets reliability, security, and cost expectations better than the alternatives.
Common CCNA Traps
- Watch for answers that partially solve the requirement but miss operational constraints.
- Questions in Network Access often include distractors that look correct for EtherChannel but violate least-privilege, durability, or availability requirements.
- Avoid picking options purely by feature name; validate data path, failure handling, and governance impact before answering.
- If the prompt hints at automation or repeatability, eliminate manual-only operational answers first.
Fast Review Checklist
- Can you compare at least two EtherChannel implementation paths and justify which one best fits the scenario?
- Can you map the chosen answer back to Network Access (20%) outcomes for CCNA?
- Can you explain security and access boundaries for EtherChannel without relying on default-open assumptions?
- Can you describe how EtherChannel integrates with Switching and STP during failure, scaling, and monitoring events?