GCP PCA Day 2

You want to deploy a cost-sensitive application to Google Cloud Compute Engine. You want the application to be up at all times, but because of the cost-sensitive nature of the application, you only want to run the application in a single VM instance. How should you configure the managed instance group?

• Enable autoscaling on the Managed Instance Group (MIG) and set minimum instances to 1 and maximum instances to 2.

• Disable autoscaling on the Managed Instance Group (MIG) and set mininum instances to 1 and maximum instances to 1.

• Disable autoscaling on the Managed Instance Group (MIG) and set mininum instances to 1 and maximum instances to 2

• Enable autoscaling on the Managed Instance Group (MIG) and set minimum instances to 1 and maximum instances to 1.

You are migrating a mission-critical HTTPS Web application from your on-premises data centre to Google Cloud, and you need to ensure unhealthy compute instances within the autoscaled Managed Instances Group (MIG) are recreated automatically. What should you do?

• Deploy Managed Instance Group (MIG) instances in multiple zones

• When creating the instance template, add a startup script that sends server status to Cloud Monitoring as a custom metric

• Add a metadata tag to the Instance Template with key: healthcheck value: enabled.

• Configure a health check on port 443 when creating the Managed Instance Group (MIG).

Your company is running a stateless application on a Compute Engine instance. The application is used heavily during regular business hours and lightly outside of business hours. Users are reporting that the application is slow during peak hours. You need to optimize the application's performance. What should you do?

• Create a snapshot of the existing disk. Create an instance template from the snapshot. Create an autoscaled managed instance group from the instance template.

• Create a snapshot of the existing disk. Create a custom image from the snapshot. Create an autoscaled managed instance group from the custom image.

• Create a custom image from the existing disk. Create an instance template from the custom image. Create an autoscaled managed instance group from the instance template.

• Create an instance template from the existing disk. Create a custom image from the instance template. Create an autoscaled managed instance group from the custom image.

Your company has a mission-critical application that serves users globally. You need to select a transactional, relational data storage system for this application. Which two products should you consider

• BigQuery

• Cloud SQL

• Cloud Spanner

• Cloud Bigtable

• Cloud Datastore

Regarding Compute Engine: What is a managed instance group?

• A managed instance group combines existing instances of different configurations into one manageable group

• A managed instance group uses an instance template to create identical instances

• A managed instance group creates a firewall around instances

• A managed instance group is a set of servers used exclusively for batch processing

You developed an application to serve production users and you plan to use Cloud SQL to host user state data which is very critical for the application flow. You want to protect your user state data from zone failures. What should you do?

• Create a Read replica in the same region but in a different zone.

• Configure High Availability (HA) for Cloud SQL and Create a Failover replica in the same region but in a different zone.

• Create a Read replica in a different region.

• Configure High Availability (HA) for Cloud SQL and Create a Failover replica in a different region.

Cloud Spanner and Cloud SQL are globally distributed relational databases?

• True

• False

You have two compute instances in the same VPC but in different regions. You can SSH from one instance to another instance using their external IP address but not their internal IP address. What could be the reason for SSH failing on the internal IP address?

• The compute instances have a static IP for their internal IP.

• The combination of compute instance network tags and VPC firewall rules allow SSH from 0.0.0.0 but denies SSH from the VPC subnets IP range.

• The internal IP address is disabled.

• The compute instances are not using the right cross-region SSH IAM permissions.

To set up a virtual private network between your office network and GCP and have the routes automatically updated when the topology changes, what is the minimal number of each type of component you need to implement

• 2 Cloud VPN Gateways, 1 Peer Gateway

• 1 Cloud VPN Gateways, 1 Peer Gateway, 1 Cloud Router

• 2 Peer Gateway, 1 Cloud Router

• 2 Cloud VPN Gateways, 1 Cloud Router

Your company’s compute workloads are split between the on-premises data centre and Google Cloud Platform. The on-premises data centre is connected to Google Cloud network by Cloud VPN. You have a requirement to provision a new non-publicly-reachable compute engine instance on a c2-standard-8 machine type in australia-southeast1- zone. What should you do?

• Configure a route to route all traffic to the public IP of compute engine instance through the VPN tunnel.

• Provision the instance without a public IP address.

• Provision the instance in a subnet that has Google Private Access enabled.

• Provision the instance in a subnetwork that has all egress traffic disabled.