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Question 390 of 1,052
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CCNA Practice Question: Which TWO statements correctly describe the…
This 200-301 practice question tests your understanding of 200-301 exam topics. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which TWO statements correctly describe the behavior of LACP modes in an EtherChannel configuration?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Passive mode will only respond to LACP packets and will not initiate negotiation.
LACP (Link Aggregation Control Protocol) uses two modes: active and passive. Active mode sends LACP packets to negotiate the channel, while passive mode only responds to LACP packets. A channel can only be formed if at least one side is in active mode. Option B correctly notes that passive mode waits for LACP packets from the peer. Option D correctly notes that active mode initiates LACP negotiation. Option A is incorrect because active mode still sends LACP packets even if the peer is passive. Option C is incorrect because passive mode can form a channel with an active peer. Option E is incorrect because LACP does not use 'desirable' mode (that is a PAgP mode).
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Active mode will not send LACP packets unless the peer is also in active mode.
Why it's wrong here
Active mode sends LACP packets regardless of the peer's mode.
- ✓
Passive mode will only respond to LACP packets and will not initiate negotiation.
Why this is correct
Passive mode waits for LACP packets from the peer and does not initiate the negotiation.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Passive mode cannot form an EtherChannel with another passive mode interface.
Why this is correct
Two passive interfaces cannot form an EtherChannel because neither will initiate LACP negotiation.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Active mode will initiate LACP negotiation by sending LACP packets.
Why this is correct
Active mode proactively sends LACP packets to negotiate the EtherChannel.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Both active and passive modes are supported in PAgP.
Why it's wrong here
PAgP uses 'desirable' and 'auto' modes, not active and passive.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The 200-301 exam frequently reuses these exact scenarios with slightly different constraints.
✓Passive mode will only respond to LACP packets and will not initiate negotiation.Correct answer▾
Why this is correct
Passive mode waits for LACP packets from the peer and does not initiate the negotiation.
✗Active mode will not send LACP packets unless the peer is also in active mode.Wrong answer — click to see why▾
Why this is wrong here
Active mode initiates LACP negotiation and sends packets even if the peer is passive.
✗Both active and passive modes are supported in PAgP.Wrong answer — click to see why▾
Why this is wrong here
LACP uses active/passive; PAgP uses desirable/auto.
Analysis generated from the official 200-301blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 200-301 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which 200-301 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
Questions learners often ask
What does this 200-301 question test?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: Passive mode will only respond to LACP packets and will not initiate negotiation. — LACP (Link Aggregation Control Protocol) uses two modes: active and passive. Active mode sends LACP packets to negotiate the channel, while passive mode only responds to LACP packets. A channel can only be formed if at least one side is in active mode. Option B correctly notes that passive mode waits for LACP packets from the peer. Option D correctly notes that active mode initiates LACP negotiation. Option A is incorrect because active mode still sends LACP packets even if the peer is passive. Option C is incorrect because passive mode can form a channel with an active peer. Option E is incorrect because LACP does not use 'desirable' mode (that is a PAgP mode).
What should I do if I get this 200-301 question wrong?
Identify which 200-301 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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