Google Professional Cloud Architect Exam - Topic 2 Question 15 Discussion

Actual exam question for Google's Professional Cloud Architect exam

Question #: 15
Topic #: 2

[All Professional Cloud Architect Questions]

You have developed a non-critical update to your application that is running in a managed instance group, and have created a new instance template with the update that you want to release. To prevent any possible impact to the application, you don't want to update any running instances. You want any new instances that are created by the managed instance group to contain the new update. What should you do?

AStart a new rolling restart operation.

BStart a new rolling replace operation.

CStart a new rolling update. Select the Proactive update mode.

DStart a new rolling update. Select the Opportunistic update mode.

Show Suggested Answer

Suggested Answer: D

In certain scenarios, an opportunistic update is useful because you don't want to cause instability to the system if it can be avoided. For example, if you have a non-critical update that can be applied as necessary without any urgency and you have a MIG that is actively being autoscaled, perform an opportunistic update so that Compute Engine does not actively tear down your existing instances to apply the update. When resizing down, the autoscaler preferentially terminates instances with the old template as well as instances that are not yet in a RUNNING state.

by Oretha at May 05, 2022, 11:46 AM

Limited Time Offer

25%

Off

Get Premium Professional Cloud Architect Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Candra

4 months ago

Rolling replace is definitely the safest choice here!

upvoted 0 times

...

Delmy

4 months ago

D seems risky, I wouldn't trust it.

upvoted 0 times

...

Clorinda

4 months ago

Wait, can we really just ignore the running instances?

upvoted 0 times

...

Jacqueline

4 months ago

I think C is better, it keeps things smooth.

upvoted 0 times

...

Leonora

5 months ago

Option B is the way to go for new instances!

upvoted 0 times

...

Alyssa

5 months ago

I think we want to avoid impacting the current instances, so I’m thinking option D might be the way to go with the Opportunistic update mode.

upvoted 0 times

...

Julene

5 months ago

I feel like a rolling replace operation might be too aggressive for a non-critical update. I’m leaning towards option A, but I’m not completely confident.

upvoted 0 times

...

Linsey

5 months ago

I remember practicing something similar, but I'm not sure if a rolling update is the best approach here. Could it be option C or D instead?

upvoted 0 times

...

Carmelina

5 months ago

I think we need to ensure that the new instances use the updated template without affecting the running ones. Maybe option B could be the right choice?

upvoted 0 times

...

Tonette

5 months ago

This one seems pretty straightforward. The control-plane node in Cisco SD-Access is responsible for managing the endpoint to device relationships, so I'll go with option B.

upvoted 0 times

...

Gary

5 months ago

Okay, let me see. The tool needs to capture narrative and statistical information, as well as track the defect to closure. I'm pretty sure D is the correct answer here.

upvoted 0 times

...

Walker

5 months ago

Okay, I've got this. BGP confederations are used to reduce the number of iBGP peering sessions required in a large BGP network. That's why the answer is D.

upvoted 0 times

...

Milly

5 months ago

Ugh, SSL issues can be so frustrating. But I'll stay focused and try to apply the troubleshooting steps we've learned.

upvoted 0 times

...