350-601 Compute Practice Question
Exhibit
Fabric Interconnect A - Ethernet Uplink Configuration interface Ethernet1/1 switchport mode trunk switchport trunk allowed vlan 10,20,30 spanning-tree port type edge trunk no shutdown Fabric Interconnect B - Ethernet Uplink Configuration interface Ethernet1/1 switchport mode trunk switchport trunk allowed vlan 10,20,30 spanning-tree port type edge trunk no shutdown UCS Manager vNIC Template Config vNIC Name: vNIC-A Fabric ID: A VLANs: 10 (Native), 20, 30 Failover: Enabled vNIC Name: vNIC-B Fabric ID: B VLANs: 10 (Native), 20, 30 Failover: Enabled
Refer to the exhibit. A UCS administrator has configured vNIC templates as shown. Both Fabric Interconnects have identical uplink configurations. The vNIC templates have 'Failover: Enabled'. However, when Fabric Interconnect A fails, servers using vNIC-A do not fail over to Fabric Interconnect B. What is the most likely cause?
⚠ Common exam trap
Cisco often tests the misconception that enabling 'Failover' on a vNIC template alone is sufficient for failover, when in reality a secondary vNIC must be explicitly added to the service profile to provide the alternate fabric path.
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 server's service profile does not include a secondary vNIC for Fabric B.
The server's service profile must include both a primary vNIC (for Fabric Interconnect A) and a secondary vNIC (for Fabric Interconnect B) to enable failover. The 'Failover: Enabled' setting on the vNIC template only allows the vNIC to use the other fabric's uplink if a secondary vNIC is explicitly defined in the service profile; without it, the vNIC is pinned to its original fabric and cannot fail over.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
A pin group is configured that forces traffic to Fabric Interconnect A.
Why it's wrong here
No pin group is mentioned in the exhibit.
- ✗
The native VLAN (10) is not allowed on Fabric Interconnect B's trunk.
Why it's wrong here
The native VLAN 10 is included in allowed VLANs.
- ✗
The uplink interfaces are configured with 'spanning-tree port type edge trunk', which blocks failover traffic.
Why it's wrong here
'spanning-tree port type edge trunk' is a standard setting and does not block failover.
- ✓
The server's service profile does not include a secondary vNIC for Fabric B.
Why this is correct
Failover requires a secondary vNIC on the other fabric in the same service profile.
Go deeper
Related to this question
About these practice questions
This 350-601 question is part of Courseiva's 984-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 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.