The answer is that the SNMPv3 group 'GRP' is not associated with a view that permits read access to the MIB tree, which directly causes the SNMPv3 walk failure. Even with correct authentication and encryption configured for the user and group, the SNMP agent will deny walk requests if the group lacks a view definition that includes the OIDs being traversed; by default, a group may have no view or only a restricted view, blocking bulk retrieval. On the ENCOR 350-401 exam, this scenario tests your understanding that SNMPv3 security is layered—credentials alone are insufficient without explicit view configuration, and a common trap is assuming that a working query from other devices proves the SNMP agent is fully functional, when in fact those devices may use a different group with a proper view. Remember the mnemonic: "Group without a view is a walk that won't get through."
350-401 SNMP and Syslog Practice Question
This 350-401 practice question tests your understanding of snmp and syslog. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
A network engineer configures SNMPv3 on a Cisco router with the following: 'snmp-server group GRP v3 priv', 'snmp-server user usr GRP v3 auth sha pass1 priv aes 128 pass2'. The NMS is configured with the same credentials. However, the NMS cannot perform SNMP walks. The engineer notices that the router's SNMP agent is responding to queries from other devices. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The group 'GRP' is not associated with a view that allows read access to the MIB tree.
SNMPv3 walks require proper view configuration. By default, the group may not have access to the entire MIB tree. The correct answer is that the group needs a view that includes the OIDs being walked.
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.
✗
The user's authentication key is too short.
Why it's wrong here
Incorrect because SHA keys can be of varying lengths; the issue is not key length.
✓
The group 'GRP' is not associated with a view that allows read access to the MIB tree.
Why this is correct
Correct because without a view, the group may have no access; 'snmp-server group GRP v3 priv read VIEW' is needed.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The NMS is using SNMPv2c community strings instead of SNMPv3.
Why it's wrong here
Incorrect because the NMS is configured with SNMPv3 credentials as per the scenario.
✗
The router's SNMP engine ID has changed since the user was created.
Why it's wrong here
Incorrect because the user is created on the router; the engine ID is automatically used.
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.
Trap categories for this question
Scenario analysis trap
Incorrect because the NMS is configured with SNMPv3 credentials as per the scenario.
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 350-401 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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 350-401 question in full detail.
Identify which 350-401 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.
SNMP and Syslog — This question tests SNMP and Syslog — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The group 'GRP' is not associated with a view that allows read access to the MIB tree. — SNMPv3 walks require proper view configuration. By default, the group may not have access to the entire MIB tree. The correct answer is that the group needs a view that includes the OIDs being walked.
What should I do if I get this 350-401 question wrong?
Identify which 350-401 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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Given the following SNMPv3 configuration on a Cisco IOS-XE router:
snmp-server group ADMIN v3 priv write ADMINVIEW
snmp-server user admin ADMIN v3 auth sha cisco123 priv aes 128 cisco456
snmp-server view ADMINVIEW iso included
What is missing or incorrect in this configuration?
medium
A.The SNMPv3 user 'admin' must also specify an engine ID for the router.
✓ B.The view 'ADMINVIEW' includes the entire ISO tree, which might be too permissive for a restricted write view.
C.The privacy password 'cisco456' must be at least 8 characters long.
D.The group 'ADMIN' must be configured with a read view to allow SNMP get operations.
Why B: The SNMPv3 user 'admin' is configured with authentication (SHA) and privacy (AES 128), and the group 'ADMIN' is set with write access to view 'ADMINVIEW'. However, the view 'ADMINVIEW' only includes the 'iso' subtree, which is too broad and may not be appropriate for a restricted view. Additionally, the configuration lacks an 'snmp-server host' command to send traps or informs, but that is not strictly required for SNMP access.
Last reviewed: Jun 18, 2026
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