VCP-VVF IT Architectures Technologies Standards Practice Question
An administrator is designing a vSphere Foundation 9.0 cluster and wishes to implement Network I/O Control (NIOC) version 3 to manage traffic contention on 10GbE/25GbE uplinks. How does NIOC prioritize traffic across system traffic types?
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
✓
By allocating user-defined shares and reservation percentages to specific system traffic types on the distributed switch uplinks.
NIOC version 3 uses shares, reservation, and limits applied to defined system traffic types (such as vMotion, FT, vSAN, iSCSI, NFS, and Management) on the distributed switch.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
By enforcing strict packet drop rules on management traffic when vMotion exceeds 80% utilization.
Why it's wrong here
NIOC controls bandwidth sharing, it does not drop management traffic arbitrarily.
- ✗
By rewriting DSCP bits on physical core switch headers directly.
Why it's wrong here
While NIOC can tag traffic with CoS/DSCP, prioritization on uplinks is managed via shares and reservations.
- ✓
By allocating user-defined shares and reservation percentages to specific system traffic types on the distributed switch uplinks.
Why this is correct
Correct. NIOC v3 allows administrators to guarantee bandwidth via reservations and prioritize via shares for system traffic.
- ✗
By dynamically migrating virtual machines to less congested physical switches using BGP routing.
Why it's wrong here
NIOC operates on the vSwitch uplinks, not via BGP physical routing migrations.
About these practice questions
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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.