- A
Port mirroring on the VDS.
Correct. Port mirroring copies traffic from a source to a destination port on a VDS for analysis.
- B
LLDP on the VDS.
Why wrong: Incorrect. LLDP is used for discovering network neighbors, not capturing traffic.
- C
NetFlow on the VDS.
Why wrong: Incorrect. NetFlow provides flow statistics and metadata, not full packet capture.
- D
Traffic shaping on the VDS.
Why wrong: Incorrect. Traffic shaping controls bandwidth, not packet capture.
Question 303 of 521
VCP-DCV Configure and Manage vSphere Networking Practice Question
This VCP-DCV practice question tests your understanding of configure and manage vsphere networking. 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.
An administrator needs to capture traffic from a specific virtual machine for troubleshooting. Which vSphere networking feature should be used?
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
✓
Port mirroring on the VDS.
Port mirroring on a VDS (option A) is the correct feature for capturing traffic from a specific virtual machine. It copies all packets from a source port (the VM's port) to a destination port for analysis. Option B (LLDP) is used for discovering network neighbors, not packet capture. Option C (NetFlow) provides flow statistics and metadata but not full packet capture. Option D (traffic shaping) controls bandwidth, not capture.
Key principle: OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Port mirroring on the VDS.
Why this is correct
Correct. Port mirroring copies traffic from a source to a destination port on a VDS for analysis.
Related concept
OSPF neighbours must agree on key parameters.
- ✗
LLDP on the VDS.
Why it's wrong here
Incorrect. LLDP is used for discovering network neighbors, not capturing traffic.
- ✗
NetFlow on the VDS.
Why it's wrong here
Incorrect. NetFlow provides flow statistics and metadata, not full packet capture.
- ✗
Traffic shaping on the VDS.
Why it's wrong here
Incorrect. Traffic shaping controls bandwidth, not packet capture.
Common exam traps
Common exam trap: OSPF can fail even when IP connectivity looks correct
OSPF neighbour formation depends on matching areas, timers, network type, authentication and passive-interface behaviour. Do not choose an answer only because the devices can ping.
Detailed technical explanation
How to think about this question
OSPF questions usually test the details that control adjacency and route selection. Read the neighbour state, area, router ID and interface configuration before deciding what is wrong.
KKey Concepts to Remember
- OSPF neighbours must agree on key parameters.
- Router ID selection can affect neighbour relationships and LSDB output.
- OSPF cost influences the preferred path.
- A route can appear in OSPF information but not become the installed route.
TExam Day Tips
- Check area mismatch first when OSPF adjacency fails.
- Review passive interfaces when a network is advertised but no neighbour forms.
- Use show ip ospf neighbor and show ip route clues carefully.
Key takeaway
OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
Real-world example
How this comes up in practice
A network engineer at a university connects two campus buildings via a fibre link. Both routers run OSPF, but no adjacency forms — even though both routers can ping each other. The engineer finds one router is in area 0 and the other in area 1. OSPF adjacency requires matching area numbers, hello/dead timers, and network type. IP reachability alone is not enough.
What to study next
Got this wrong? Here's your next step.
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related VCP-DCV OSPF questions on adjacency and route selection.
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Configure and Manage vSphere Networking — study guide chapter
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FAQ
Questions learners often ask
What does this VCP-DCV question test?
Configure and Manage vSphere Networking — This question tests Configure and Manage vSphere Networking — OSPF neighbours must agree on key parameters..
What is the correct answer to this question?
The correct answer is: Port mirroring on the VDS. — Port mirroring on a VDS (option A) is the correct feature for capturing traffic from a specific virtual machine. It copies all packets from a source port (the VM's port) to a destination port for analysis. Option B (LLDP) is used for discovering network neighbors, not packet capture. Option C (NetFlow) provides flow statistics and metadata but not full packet capture. Option D (traffic shaping) controls bandwidth, not capture.
What should I do if I get this VCP-DCV question wrong?
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related VCP-DCV OSPF questions on adjacency and route selection.
What is the key concept behind this question?
OSPF neighbours must agree on key parameters.
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Last reviewed: Jun 24, 2026
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