AZ-400 Configure processes and communications Practice Question
This AZ-400 practice question tests your understanding of configure processes and communications. 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.
Your team uses trunk-based development with short-lived feature branches. You notice that code reviews often delay merging because reviewers are not available. What is the best way to reduce review latency while maintaining quality?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Encourage pair programming or mob programming to review code in real-time.
Option B is correct because pair programming or mob programming can reduce the need for asynchronous reviews as code is reviewed in real-time. Option A is incorrect because reducing reviewer count may lower quality. Option C is incorrect because automatic merging bypasses review. Option D is incorrect because a separate review team introduces bottlenecks.
Key principle: A trunk being up does not mean the VLAN is allowed across it. Always verify the allowed VLAN list and whether the VLAN exists on both switches.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Enable auto-merge for pull requests that have passed all checks.
Why it's wrong here
Auto-merge still requires approval first.
✗
Require only one reviewer instead of two.
Why it's wrong here
Reducing reviewers may decrease code quality.
✗
Create a separate review team that only handles pull requests.
Why it's wrong here
A dedicated team may become a bottleneck itself.
✓
Encourage pair programming or mob programming to review code in real-time.
Why this is correct
Real-time review eliminates async delays.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Access ports place end devices into a single VLAN.
Common exam traps
Common exam trap: an active trunk can still block the VLAN you need
A trunk being up does not prove every VLAN is crossing it. Check allowed VLAN lists, native VLAN mismatch, VLAN existence and access-port assignment.
Detailed technical explanation
How to think about this question
VLAN questions usually combine access-port and trunking clues. The key is to identify whether the issue is local to one switchport, caused by the trunk, or caused by the VLAN not existing where it needs to exist.
KKey Concepts to Remember
Access ports place end devices into a single VLAN.
Trunk ports carry multiple VLANs between switches.
Allowed VLAN lists decide which VLANs can cross a trunk.
Native VLAN mismatch can create confusing symptoms.
TExam Day Tips
→Use show vlan brief to verify access VLANs.
→Use show interfaces trunk to verify trunk state and allowed VLANs.
→Do not treat every same-VLAN issue as a routing problem.
Key takeaway
A trunk being up does not mean the VLAN is allowed across it. Always verify the allowed VLAN list and whether the VLAN exists on both switches.
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. A trunk being up does not mean the VLAN is allowed across it. Always verify the allowed VLAN list and whether the VLAN exists on both switches. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-400 question in full detail.
Review VLAN allowed lists, native VLAN mismatch detection, and how to verify VLAN membership with show vlan brief and show interfaces trunk. Then practise related AZ-400 questions on switching, trunking, and access-port configuration.
Configure processes and communications — This question tests Configure processes and communications — Access ports place end devices into a single VLAN..
What is the correct answer to this question?
The correct answer is: Encourage pair programming or mob programming to review code in real-time. — Option B is correct because pair programming or mob programming can reduce the need for asynchronous reviews as code is reviewed in real-time. Option A is incorrect because reducing reviewer count may lower quality. Option C is incorrect because automatic merging bypasses review. Option D is incorrect because a separate review team introduces bottlenecks.
What should I do if I get this AZ-400 question wrong?
Review VLAN allowed lists, native VLAN mismatch detection, and how to verify VLAN membership with show vlan brief and show interfaces trunk. Then practise related AZ-400 questions on switching, trunking, and access-port configuration.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Access ports place end devices into a single VLAN.
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