350-601 Compute Practice Question
An engineer notices that after a reboot of one UCS fabric interconnect (FI-A), the server traffic fails over to FI-B but never fails back to FI-A even after FI-A is fully operational. Which configuration change would ensure automatic failback?
⚠ Common exam trap
Cisco often tests the misconception that 'Active/Standby' is a valid Backup Link policy, when in fact the only two options are 'Active/Active' and 'Primary/Secondary', and candidates confuse the failover behavior of the server vNIC policy with the uplink Backup Link policy.
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
✓
Change the 'Backup Link' policy to 'Active/Active'
The 'Backup Link' policy in UCS determines how uplink ports behave during failover and failback. Setting it to 'Active/Active' allows both FIs to actively forward traffic, and when the failed FI recovers, the server traffic automatically fails back because the policy does not designate a permanent primary or standby role. This ensures symmetric traffic flow without manual intervention.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Change the 'Backup Link' policy to 'Active/Active'
Why this is correct
Active/Active mode allows automatic failback
- ✗
Change the 'Backup Link' policy to 'Primary/Secondary'
Why it's wrong here
Not a valid mode in UCS Manager
- ✗
Change the 'Backup Link' policy to 'Active/Standby'
Why it's wrong here
Active/Standby mode prevents automatic failback
- ✗
Change the 'Backup Link' policy to 'Failover Only'
Why it's wrong here
Failover Only mode disables failback
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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