GCP Quiz 3 SPot Vm SUD MIG

1. What are Spot VM discounts in GCP?

• Temporary price reductions for Preemptible VMs

• Fixed-price discounts for long-running instances

• Flexible discounts for sustained usage of VMs

• Time-limited discounts for VMs in low-demand zones

Answer explanation

Explanation: Spot VM discounts offer temporary cost reductions for using Preemptible VM instances

What is a limitation of Spot VMs in GCP?

• They cannot be used in Managed Instance Groups (MIGs)

• They are not suitable for fault-tolerant applications

• They cannot be preempted by other VMs

• 1. They are only available in specific regions

Answer explanation

1. Explanation: Spot VMs can be preempted at any time, making them unsuitable for applications that require high availability.

What is an Instance Template in GCP

• A predefined configuration used to create new instances

• A billing report that provides detailed usage information

• A custom script to automate instance deployments

• 1. A virtual machine image with pre-installed applications

Answer explanation

1. Explanation: Instance Templates are preconfigured settings used to create consistent instances with desired specifications.

What is the primary purpose of Instance Groups in GCP?

• Load balancing of incoming traffic across multiple VM instances

• Automatic resizing of VM instances based on demand

• Creating a group of VM instances with the same settings for easier management

• Generating billing reports for VM usage

Answer explanation

Explanation: Compute Engine Instance Groups allow grouping VM instances with the same configurations for easier management and scaling

What is the key benefit of using Managed Instance Groups (MIGs) in GCP?

• MIGs provide automatic load balancing across VM instances.

• MIGs offer long-term cost discounts on VM usage.

• MIGs allow for customization of individual VM instance settings.

• MIGs support attaching local SSD storage to VM instances.

Answer explanation

Explanation: Managed Instance Groups offer automatic load balancing to distribute traffic across VM instances evenly.

What happens to data stored on a Spot VM when it gets preempted?

• Data is migrated to a regular VM automatically.

• Data is lost, and there is no recovery option.

• Data is backed up to Google Cloud Storage automatically.

• 1. Data is temporarily paused and can be resumed upon restart.

Answer explanation

Explanation: Spot VMs can be preempted at any time, and data stored on them is lost without any recovery option.

What feature allows Managed Instance Groups (MIGs) to maintain the desired number of instances even if some instances fail or are terminated?

• Auto Healing

• Preemptive Scaling

• Elastic Load Balancing

• Instance Recovery

Answer explanation

1. Explanation: Auto Healing in Managed Instance Groups ensures the desired number of instances is maintained by replacing failed or terminated instances automatically.

What type of discount is based on committing to a specific amount of resource usage for a period of time?

• SUD (Sustained Use Discount)

• CUD (Committed Use Discount)

• Spot Discount

• Preemptible Discount

Answer explanation

Explanation: Committed Use Discounts are based on committing to using specific resources for a contracted period.

How does Sustained Use Discounts (SUD) differ from Committed Use Discounts (CUD)?

• SUD provides discounts based on long-term commitments, while CUD offers flexibility in resource usage.

• SUD requires a specific commitment to predefined VM types, while CUD allows custom machine types.

• SUD applies automatically based on usage, while CUD requires manual setup.

• SUD is available for all GCP services, while CUD is specific to Compute Engine instances.

Answer explanation

Explanation: Sustained Use Discounts are automatically applied based on usage, while Committed Use Discounts require manual setup and commitment.

What is a Sole Tenant Node in GCP?

• A dedicated physical server for running VM instances

• A type of VM instance optimized for single-tenant use

• A node in a distributed cluster for high-performance computing

• A managed instance group with a single VM instance

Answer explanation

Explanation: A Sole Tenant Node provides a dedicated physical server for exclusive use by a single customer.