VCP-VVF IT Architectures Technologies Standards Practice Question
An infrastructure architect is configuring network security standards for a vSphere Foundation 9.0 environment. They want to ensure that all virtual machine traffic traversing a vSphere Distributed Switch cannot be sniffed by compromised guest operating systems using promiscuous mode. Which configuration setting must be enforced?
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
✓
Set Promiscuous Mode, MAC Address Changes, and Forged Transmits to 'Reject' at the distributed port group security policy level.
Port group security policies on the vSphere Distributed Switch include Promiscuous Mode, MAC Address Changes, and Forged Transmits, which should be set to 'Reject' to prevent sniffing and spoofing.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Set Promiscuous Mode, MAC Address Changes, and Forged Transmits to 'Reject' at the distributed port group security policy level.
Why this is correct
Correct. Rejecting these settings prevents unauthorized packet capture and traffic spoofing at the virtual switch port level.
- ✗
Configure IP Source Guard on the physical switch access ports.
Why it's wrong here
IP Source Guard prevents IP spoofing on physical switches but does not configure vSphere port group security.
- ✗
Deploy an external hardware tap appliance inline with the physical uplinks.
Why it's wrong here
Hardware taps capture physical wire traffic; they do not secure virtual switch switching policies.
- ✗
Enable BPDU Guard on all physical uplink switch ports connected to the ESXi host NICs.
Why it's wrong here
BPDU Guard protects physical switches from loops caused by unauthorized switches, not guest VM sniffing.
Quick reference
Access Control Model Comparison
| Model | Acronym | Who Controls Access? | Best For |
|---|---|---|---|
| Discretionary Access Control | DAC | Resource owner | Small teams, file shares |
| Mandatory Access Control | MAC | System / security labels | Classified govt / military |
| Role-Based Access Control | RBAC | Administrator (via roles) | Enterprise environments |
| Attribute-Based Access Control | ABAC | Policy engine (user + resource attributes) | Fine-grained, dynamic policies |
| Rule-Based Access Control | RuBAC | System rules / ACLs | Firewall rules, network ACLs |
About these practice questions
This VCP-VVF question is part of Courseiva's 517-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. 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.