The answer is the User Acknowledged update method combined with a maintenance policy that reboots blades sequentially. This approach minimizes downtime because it updates and reboots only one blade at a time, keeping the other seven blades in the UCS 5108 chassis online and serving traffic. The User Acknowledged method requires manual confirmation before each blade’s reboot, giving the administrator control to ensure service continuity, while the sequential reboot policy prevents all blades from going offline simultaneously. On the Cisco DCCOR 350-601 exam, this question tests your understanding of UCS firmware update policies and their impact on availability—a common trap is choosing “Fast” or “Automatic” updates, which reboot all blades at once, causing full chassis downtime. Remember the memory tip: “One blade down, seven stay around” to recall that sequential reboots with user acknowledgment keep disruption minimal.
350-601 Compute Practice Question
This 350-601 practice question tests your understanding of compute. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 UCS administrator needs to update the firmware on a UCS 5108 chassis that contains eight B-Series blades. The firmware update must be performed with minimal downtime. Which update method should be used?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
User Acknowledged update with a maintenance policy that reboots blades sequentially
Option C is correct because the User Acknowledged update method, combined with a maintenance policy that reboots blades sequentially, allows the firmware update to proceed blade by blade with minimal downtime. This approach ensures that only one blade is offline at a time, while the remaining blades continue to serve traffic, making it ideal for a chassis with eight B-Series blades where service continuity is critical.
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.
✗
Fast-Impact update
Why it's wrong here
Fast-Impact is not a standard UCS firmware update method; the standard methods are System-Impactful, User Acknowledged, and Non-Impactful.
✗
Non-Impactful update with a forced reboot
Why it's wrong here
Non-Impactful updates typically do not require a reboot; forcing a reboot would cause downtime.
✓
User Acknowledged update with a maintenance policy that reboots blades sequentially
Why this is correct
This method allows the administrator to control when blades reboot, minimizing downtime by staggering reboots.
Related concept
Read the scenario before looking for a memorised answer.
✗
System-Impactful update with a single reboot
Why it's wrong here
System-Impactful updates affect the entire system and require a full reboot, causing more downtime.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between 'User Acknowledged' and 'Non-Impactful' updates, trapping candidates who mistakenly think that a non-impactful update can include a forced reboot, when in fact any reboot makes the update impactful.
Detailed technical explanation
How to think about this question
Under the hood, the User Acknowledged update method in UCS Manager leverages a maintenance policy to control the reboot sequence, using the blade's service profile to ensure that each blade is gracefully removed from the fabric interconnect's forwarding table before reboot. In a real-world scenario, this method is critical for production environments where even a few seconds of downtime per blade can be tolerated, but a full chassis outage would be unacceptable. The sequential reboot relies on the Cisco UCS Manager's ability to issue a 'shutdown' command to the blade's operating system via the CIMC, followed by a firmware activation and reboot, all orchestrated by the maintenance policy's timer.
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: User Acknowledged update with a maintenance policy that reboots blades sequentially — Option C is correct because the User Acknowledged update method, combined with a maintenance policy that reboots blades sequentially, allows the firmware update to proceed blade by blade with minimal downtime. This approach ensures that only one blade is offline at a time, while the remaining blades continue to serve traffic, making it ideal for a chassis with eight B-Series blades where service continuity is critical.
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.
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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