ExpertMedium1 markMultiple Choice
GCP ACE · Question 21 · Domain 3.1: Deploying and implementing Compute Engine resources
You are creating a Managed Instance Group (MIG) that needs to scale automatically based on CPU utilization. Which TWO resources must you create before or during the MIG creation? (Select TWO)
You are creating a Managed Instance Group (MIG) that needs to scale automatically based on CPU utilization. Which TWO resources must you create before or during the MIG creation? (Select TWO)
Answer options:
A.
Instance Template
B.
Unmanaged Instance Group
C.
Autoscaler configuration
D.
Global Load Balancer
E.
Custom Image
How to approach this question
Identify the prerequisites for a scaling MIG: what defines the VM, and what defines the scaling rules.
Full Answer
To create an autoscaling Managed Instance Group, you must first create an Instance Template, which defines the machine type, image, and network settings for the VMs. You must also configure an Autoscaler, which defines the scaling policy (e.g., target CPU utilization).
Common mistakes
Selecting Load Balancer, assuming it's required for the MIG to exist, rather than just being a common architectural pattern.
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