Discuss Google Professional Cloud Architect (PR000213) Exam Topic 5 Question 111

You want to automate the creation of a managed instance group and a startup script to install the OS package dependencies. You want to minimize the startup time for VMs in the instance group.

What should you do?

AUse Terraform to create the managed instance group and a startup script to install the OS package
dependencies.

BCreate a custom VM image with all OS package dependencies. Use Deployment Manager to create the managed instance group with the VM image.

CUse Puppet to create the managed instance group and install the OS package dependencies.

DUse Deployment Manager to create the managed instance group and Ansible to install the OS package dependencies.

Suggested Answer: B

'Custom images are more deterministic and start more quickly than instances with startup scripts. However, startup scripts are more flexible and let you update the apps and settings in your instances more easily.' https://cloud.google.com/compute/docs/instance-templates/create-instance-templates#using_custom_or_public_images_in_your_instance_templates

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16 comments · newest first

Nathalie 10 months ago

Wait, can you really speed up startup with a custom image?

Lea 10 months ago

I agree, custom VM images save a lot of time.

Trinidad 11 months ago

Not sure about that, what if the image gets outdated?

Earlean 11 months ago

Terraform is cool, but B just makes more sense here.

Maryann 11 months ago

B is the best option for minimizing startup time!

Velda 11 months ago

I vaguely recall that using configuration management tools like Puppet or Ansible might add extra time during startup, but I can't remember the details.

Linwood 11 months ago

I feel like we practiced a question similar to this where using Deployment Manager was emphasized for creating resources efficiently.

Desire 12 months ago

I'm not entirely sure, but I think Terraform is more about infrastructure as code, so it might not be the best choice for minimizing startup time with package installations.

Malcom 12 months ago

I remember we discussed how using a custom VM image could really speed up the startup time since all dependencies would already be included.

Joye 1 year ago

I'm leaning towards the Terraform option. It seems like the most straightforward way to automate the whole process and ensure consistency across the instance group.

Mari 1 year ago

I think using Deployment Manager and Ansible could be a good approach. That way, I can separate the infrastructure creation from the package installation, which might make it easier to manage and maintain.

Lili 1 year ago

Hmm, I'm not sure which option is best here. I'll need to think through the pros and cons of each approach. Maybe I should consider creating a custom VM image to avoid the startup script overhead.

Devora 1 year ago

This seems straightforward. I'd go with Terraform to create the managed instance group and the startup script. That way, I can manage everything in one place and minimize the startup time.

Marguerita 1 year ago

That's a good point, but using Deployment Manager with Ansible in option D could also be effective.

Haley 1 year ago

I disagree, I believe option B is better. Creating a custom VM image will reduce startup time.

Marguerita 1 year ago

I think option A is the best choice. Terraform can automate the creation efficiently.

Google Professional Cloud Architect (PR000213) Exam - Topic 5 Question 111 Discussion