VCP-VVF Troubleshoot And Optimize Practice Question
An administrator is investigating a performance issue where an ESXi 9.0 host's physical network adapters are experiencing dropped packets due to buffer exhaustion. Which esxcli command or network tuning approach can be used to check or adjust receive (RX) ring buffer sizes on a physical network adapter (vmnic)?
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
✓
esxcli network nic ring get -n vmnicX and esxcli network nic ring set
'esxcli network nic ring get' and 'esxcli network nic ring set' allow administrators to inspect and modify RX/TX ring buffer sizes on supported physical network adapters in ESXi.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
esxcli network nic ring get -n vmnicX and esxcli network nic ring set
Why this is correct
These commands allow viewing and adjusting the hardware ring buffer descriptor counts to prevent packet drops during traffic bursts.
- ✗
esxcli vswitch standard buffer modify
Why it's wrong here
vSwitches do not use physical ring buffer commands; ring buffers belong to physical NIC drivers.
- ✗
esxcli hardware pnic buffer get
Why it's wrong here
This command is invalid; network card ring buffers are managed under the network nic namespace.
- ✗
esxcli network ip buffer list
Why it's wrong here
This command does not exist in the ESXi command set.
About these practice questions
One of 517 original VCP-VVF practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official VMware exam blueprint
This VCP-VVF practice question is part of Courseiva's free VMware certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the VCP-VVF exam.