ExpertMedium1 markMultiple Choice
Domain 3.1: Deploying and implementing Compute Engine resourcesCompute EngineAutoscalingMIGsInstance Templates
GCP ACE · Question 20 · Domain 3.1: Deploying and implementing Compute Engine resources
You want to deploy a fleet of identical web servers that automatically scale up when CPU utilization exceeds 70%.
Which TWO components must you create to implement this architecture? (Select TWO)
You want to deploy a fleet of identical web servers that automatically scale up when CPU utilization exceeds 70%.
Which TWO components must you create to implement this architecture? (Select TWO)
Answer options:
A.
An Instance Template.
B.
An Unmanaged Instance Group.
C.
A Managed Instance Group (MIG).
D.
A Cloud Storage bucket.
E.
A Custom Machine Type.
How to approach this question
Identify the two core building blocks of autoscaling in Compute Engine: the blueprint (template) and the manager (MIG).
Full Answer
An Instance Template and a Managed Instance Group (MIG).
To create an autoscaled fleet of identical VMs in Compute Engine, you need two primary components. First, you must create an Instance Template, which acts as a blueprint defining the machine type, boot disk image, network settings, and other properties. Second, you create a Managed Instance Group (MIG) that uses this template to stamp out identical instances. You then configure the autoscaler on the MIG to scale based on CPU utilization.
Common mistakes
Selecting Unmanaged Instance Group, which does not support autoscaling or instance templates.
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