Virtual Machines :Essential Google Cloud Infrastructure: Foundation (Preparing for Google Cloud Certification: Cloud Architect Professional Certificate) Answers 2025
Question 1
Which statement is true of Virtual Machine Instances in Compute Engine?
β A VM always maps to a single hardware computer.
β Compute Engine uses VMware.
β All VMs are single tenancy.
π© In Compute Engine, a VM is a networked service that simulates the features of a computer.
Explanation:
Compute Engine VMs are virtualized services, not tied to single hardware, not using VMware, and not single-tenant by default.
Question 2
What are sustained use discounts?
β Purchase commitments for specific resources
π© Automatic discounts for running VMs for a significant portion of the billing month
β Discounts for preemptible VMs
β Per-second billing feature
Explanation:
Sustained use discounts apply automatically as your VM runs longerβno commitment needed.
Question 3
Which statement is true of persistent disks?
β Always HDDs
β Physical hardware directly attached
β Cannot be resized
π© Persistent disks are encrypted by default.
Explanation:
Google Cloud encrypts all persistent disks by default, using Google-managed keys unless you choose customer-managed keys.
π§Ύ Summary Table
| Q# | Correct Answer | Key Concept |
|---|---|---|
| 1 | VM is a networked virtual service | Compute Engine virtual machine behavior |
| 2 | Automatic discounts for long-running VMs | Sustained use discount definition |
| 3 | Persistent disks are encrypted by default | GCP storage security |