350-601 Compute Practice Question
A startup company is deploying a new web application on UCS B-Series blades. They want to use PXE boot for rapid provisioning. The network team has configured a DHCP server and a PXE server on the same VLAN as the UCS service profiles. The system administrator creates a service profile for a blade and sets the boot policy to 'PXE' as the first boot device, and local disk as second. However, when the blade powers on, it boots from the local disk instead of PXE. The PXE server logs show no request from the blade's MAC address. The DHCP server logs show no activity. The fabric interconnect is configured with a default VLAN. What is the most likely cause?
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
✓
The vNIC on the service profile is not configured with the correct native VLAN
PXE boot requires the vNIC to have an untagged native VLAN that matches the PXE/DHCP subnet. If the native VLAN on the vNIC is different, DHCP requests are not forwarded. Option B wrong because PXE boot order is usually correct. Option C wrong because it would cause different symptoms. Option D wrong because service profile association is fine.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
The vNIC on the service profile is not configured with the correct native VLAN
Why this is correct
Native VLAN mismatch prevents DHCP from reaching the server
- ✗
The boot policy order lists local disk before PXE
Why it's wrong here
The stem says PXE is first
- ✗
The service profile is not properly associated with the blade
Why it's wrong here
Association would not affect PXE; server boots anyway
- ✗
The fabric interconnect uplinks are not in trunk mode
Why it's wrong here
Uplinks usually trunk; would affect all traffic, not just PXE
Visual reference
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 |
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-601 practice question is part of Courseiva's free Cisco 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 350-601 exam.