The answer is to upgrade the CIMC firmware on Server-A from 4.0(1a) to 4.2(1c) using Intersight’s firmware update capability. This is correct because a CIMC firmware mismatch with the Intersight baseline directly causes management-plane instability, breaking communication between the server, Intersight, and vCenter; upgrading the CIMC restores proper control without touching the hypervisor or storage paths. On the Cisco DCCOR 350-601 exam, this scenario tests your understanding that Intersight manages firmware compliance as a lifecycle operation, and the common trap is attempting to reboot the ESXi host or reseat hardware when the root cause is a stale management controller. Remember the memory tip: “CIMC first, ESXi last” — always resolve the management controller firmware before troubleshooting the data plane.
350-601 Compute Practice Question
This 350-601 practice question tests your understanding of compute. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A financial services firm has deployed Cisco UCS C-Series rack servers running VMware vSphere 7.0. They use Cisco Intersight for management. Recently, a critical application server (Server-A) became unresponsive. The Intersight dashboard shows the server's health status as 'Warning' with a firmware compliance alert: the server's Cisco Integrated Management Controller (CIMC) firmware version is 4.0(1a), while the Intersight firmware baseline is 4.2(1c). The server is running ESXi 7.0u2 on a local datastore. The storage is provided by a Cisco MDS switch via Fibre Channel. The server has two 10GbE uplinks to the fabric interconnect. The engineer notices that the vCenter Server cannot communicate with Server-A, and all VMs on that host are isolated. The engineer suspects the issue is related to the firmware mismatch. What is the most appropriate first step to resolve this issue while minimizing downtime?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "first"
Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Upgrade the CIMC firmware on Server-A from 4.0(1a) to 4.2(1c) using Intersight's firmware update capability.
The CIMC firmware mismatch (4.0(1a) vs. baseline 4.2(1c)) is a known cause of management-plane instability in Cisco UCS C-Series servers managed by Intersight. Upgrading the CIMC firmware to match the Intersight baseline using Intersight's built-in firmware update capability directly addresses the root cause, restoring proper communication between the server, Intersight, and vCenter, while minimizing downtime by avoiding disruptive OS-level changes.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Check vCenter logs to determine why communication failed.
Why it's wrong here
Diagnostic step only; does not resolve the firmware mismatch.
✗
Reinstall ESXi on Server-A to ensure a clean operating system.
Why it's wrong here
Reinstalling ESXi does not address the firmware mismatch and may cause extended downtime.
✓
Upgrade the CIMC firmware on Server-A from 4.0(1a) to 4.2(1c) using Intersight's firmware update capability.
Why this is correct
Directly upgrades the firmware to the compliant version, resolving the underlying issue.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Change the Intersight firmware baseline to match the current CIMC version (4.0(1a)).
Why it's wrong here
This resolves the alert but bypasses needed firmware updates and may lead to instability.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that a firmware mismatch only affects compliance reporting and not actual data-plane or management-plane functionality, leading candidates to choose a non-disruptive but ineffective option like changing the baseline (Option D) instead of performing the necessary firmware upgrade.
Detailed technical explanation
How to think about this question
Cisco UCS C-Series servers rely on the CIMC for out-of-band management, including IPMI, KVM, and communication with Intersight. A firmware mismatch between the CIMC and the Intersight baseline can cause the CIMC to fail to report correct health status or respond to management commands, leading to vCenter losing connectivity to the ESXi host. Intersight's firmware update capability uses a staged update process that can be applied without rebooting the host if the CIMC supports it, but for CIMC firmware, a reboot of the CIMC (not the host OS) is typically required, which can be scheduled to minimize VM downtime.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 350-601 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Compute — This question tests Compute — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Upgrade the CIMC firmware on Server-A from 4.0(1a) to 4.2(1c) using Intersight's firmware update capability. — The CIMC firmware mismatch (4.0(1a) vs. baseline 4.2(1c)) is a known cause of management-plane instability in Cisco UCS C-Series servers managed by Intersight. Upgrading the CIMC firmware to match the Intersight baseline using Intersight's built-in firmware update capability directly addresses the root cause, restoring proper communication between the server, Intersight, and vCenter, while minimizing downtime by avoiding disruptive OS-level changes.
What should I do if I get this 350-601 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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