350-601 Compute Practice Question
Exhibit
{
"Name": "Web-Server-Profile",
"UUID": "00000000-0000-0000-0000-000000000001",
"Vnics": [
{
"Name": "vNIC-A",
"Fabric": "A",
"Vlan": "100",
"MacPool": "mac-pool-1",
"Mtu": 1500
},
{
"Name": "vNIC-B",
"Fabric": "B",
"Vlan": "100",
"MacPool": "mac-pool-1",
"Mtu": 1500
}
],
"SanBoot": null,
"BootPolicy": "boot-policy-1"
}Refer to the exhibit. A UCS manager profile is configured with two vNICs on separate fabrics. The server is failing to communicate with the default gateway on VLAN 100. Both vNICs are up. What is the most likely issue?
⚠ Common exam trap
Cisco often tests the misconception that a vNIC being 'up' implies full Layer 2 connectivity, when in fact the VLAN must be defined on the fabric interconnect for traffic to be switched.
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 VLAN 100 is not defined on the fabric interconnects
The most likely issue is that VLAN 100 is not defined on the fabric interconnects. In UCS Manager, even if the vNICs are up and the MAC pool is available, the server cannot communicate with the default gateway if the VLAN is not present on the fabric interconnect's VLAN database. The fabric interconnect must have VLAN 100 created and assigned to the appropriate uplink ports or port-channels for traffic to be forwarded.
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 MAC pool is exhausted
Why it's wrong here
MAC pool exhaustion would prevent MAC assignment, not connectivity of already assigned MACs.
- ✓
The VLAN 100 is not defined on the fabric interconnects
Why this is correct
If VLAN 100 is absent on the FIs, traffic cannot be forwarded to the gateway.
- ✗
The boot policy is missing
Why it's wrong here
Boot policy affects boot sequence, not IP connectivity.
- ✗
The server is using active-standby NIC teaming and the active vNIC is on a fabric that does not have the VLAN
Why it's wrong here
Both vNICs are up, and the exhibit doesn't indicate teaming; misconfigured VLAN is more fundamental.
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.