Drag and Drop Ordering Questions

Build the container image, then push the image to a registry, then create a Service, then create a Deployment manifest, then apply the Deployment.

Why wrong: This is incorrect because creating a Service before the Deployment is premature; the Service needs to reference running pods, which do not exist until the Deployment is applied.

Build the container image, then create a Deployment manifest, then push the image to a registry, then apply the Deployment, then create a Service.

Why wrong: This is incorrect because the image must be pushed to a registry before it can be referenced in the Deployment manifest; otherwise, the Deployment will fail to pull the image.

Create a Deployment manifest, then apply the Deployment, then build the container image, then push the image to a registry, then create a Service.

Why wrong: This is incorrect because you cannot apply a Deployment that references an image that has not been built or pushed yet; the image must exist in a registry first.

Create a Cloud Function to copy new objects to the DR bucket, then enable versioning on the primary bucket, then test.

Why wrong: This is incorrect because if the Cloud Function is created before enabling versioning, it may copy objects that are later accidentally deleted, and versioning would not protect the original versions. Versioning should be set up first.

Create a Cloud Function, then test, then enable versioning.

Why wrong: This is incorrect because testing before enabling versioning is meaningless; versioning is a critical component of the disaster recovery plan. Also, the function needs versioning to work correctly.

Enable versioning, then test, then create the Cloud Function.

Why wrong: This is incorrect because testing before creating the Cloud Function does not validate the recovery mechanism. The function must exist to copy objects, so it should be created before testing.

Attach service projects to the host project, then enable Shared VPC in the host project, then grant IAM roles, then deploy resources.

Why wrong: This is incorrect because you cannot attach service projects before enabling Shared VPC on the host project. The host project must first have Shared VPC enabled to allow attachments.

Enable Shared VPC in the host project, then grant IAM roles to service project users, then attach service projects, then deploy resources.

Why wrong: This is incorrect because IAM roles for subnet usage should be granted after attaching service projects. Without attachment, the service project is not yet associated, and IAM roles may not apply correctly to the shared VPC resources.

Enable Shared VPC in the host project, then attach service projects, then deploy resources in service projects, then grant IAM roles.

Why wrong: This is incorrect because deploying resources before granting IAM roles would cause failures. Service projects need the compute.networkUser role (or equivalent) to use subnets. Without permissions, resource creation will be denied.

First, create a URL map. Then, create a target proxy. Next, create a forwarding rule. After that, create a health check. Then, create an instance group. Finally, create a backend service (with health check) and add the instance group.

Why wrong: This order is incorrect because the URL map and target proxy depend on the backend service, which must exist before they can reference it. Additionally, the health check must be created before the backend service that uses it, and the backend service must be created before the URL map.

First, create an instance group. Then, create a backend service (without a health check). Next, create a URL map. Then, create a target proxy. After that, create a forwarding rule. Finally, create a health check (too late to attach to the backend service).

Why wrong: This order is incorrect because the health check is not created until after the backend service, which means the backend service would be configured without a health check initially. Health checks must be defined before or during backend service creation. Also, without a health check, the load balancer would route traffic to unhealthy instances.

First, create a forwarding rule. Then, create a target proxy. Next, create a URL map. After that, create a backend service. Then, create an instance group. Finally, create a health check.

Why wrong: This order is incorrect because the forwarding rule references a target proxy, which in turn references a URL map, which references a backend service. The backend service needs an instance group and health check to be defined first. Creating the forwarding rule before these dependencies is not possible, as they are required for the configuration.

1. Verify that the VPC networks have non-overlapping IP ranges. 2. Create a VPC peering connection from Project A to Project B. 3. Verify the peering status and network connectivity. (No peering from Project B to Project A)

Why wrong: This order creates only one side of the peering. VPC peering requires both sides to be set up; otherwise, traffic flows only in one direction or not at all.

1. Create a VPC peering connection from Project A to Project B. 2. Create a VPC peering connection from Project B to Project A. 3. Verify that the VPC networks have non-overlapping IP ranges. 4. Verify the peering status and network connectivity.

Why wrong: Checking IP range overlap is done after peering attempts. If IPs overlap, peering will fail, so this order wastes effort and causes potential errors early.

1. Create a VPC peering connection from Project B to Project A. 2. Create a VPC peering connection from Project A to Project B. 3. Verify that the VPC networks have non-overlapping IP ranges. 4. Verify the peering status and network connectivity.

Why wrong: Similar to C but reverses the order of peering creation. However, the critical flaw is still performing IP range check after creating peering, which can lead to immediate failure.

1. Create a VPN gateway 2. Create a Cloud Router 3. Establish BGP sessions 4. Create a tunnel with the on-premises public IP and pre-shared key

Why wrong: This order is incorrect because the tunnel must be created before establishing BGP sessions, and the Cloud Router should be created before or in conjunction with the VPN gateway, but BGP sessions cannot be established without first having a tunnel.

1. Create a VPN gateway 2. Create a tunnel with the on-premises public IP and pre-shared key 3. Establish BGP sessions

Why wrong: This order is incorrect because it omits the creation of a Cloud Router. Without a Cloud Router, BGP sessions cannot be established, and dynamic routing would not function.

1. Create a tunnel with the on-premises public IP and pre-shared key 2. Create a VPN gateway 3. Create a Cloud Router 4. Establish BGP sessions

Why wrong: This order is incorrect because you must first create the VPN gateway before you can attach a tunnel to it. The Cloud Router should also be created before the tunnel to configure routing.

Create a new disk in the target region, then create a snapshot of the existing disk, then create a new VM in the target region using the new disk.

Why wrong: This order is incorrect because the snapshot must be taken from the source disk before you can create a disk in the target region. Creating a disk first without a snapshot results in an empty disk.

Create a snapshot of the existing disk, then create a new VM in the target region, then create a new disk in the target region from the snapshot.

Why wrong: This order is incorrect because you cannot create a VM without a disk. The disk must be created from the snapshot before launching the VM.

Create a new VM in the target region, then create a snapshot of the existing disk, then create a new disk in the target region from the snapshot.

Why wrong: This order is incorrect because you cannot create a VM without a disk. Additionally, the snapshot and disk creation should happen first.

Grant the necessary IAM roles, then attach the service account to the Compute Engine instance, then create the service account.

Why wrong: This is incorrect because you cannot grant roles to a service account that does not exist yet. The service account must be created before any roles can be assigned.

Attach the service account to the Compute Engine instance, then create the service account, then grant the necessary IAM roles.

Why wrong: This is incorrect because you cannot attach a non-existent service account to an instance. The service account must be created first, then roles assigned, then attached.

Create the service account, then attach it to the Compute Engine instance, then grant the necessary IAM roles.

Why wrong: This is incorrect because granting roles after attachment may cause a delay before the instance can use the permissions. Best practice is to grant roles before attaching the service account to ensure immediate access.

Step 1: Identify the backup, Step 2: Restore the backup to the existing instance, Step 3: Verify the data, Step 4: Redirect applications if needed.

Why wrong: This is incorrect because restoring directly to the existing instance overwrites current data, risking data loss. Best practice is to restore to a new instance first.

Step 1: Create a new Cloud SQL instance, Step 2: Identify the backup, Step 3: Restore the backup to the new instance, Step 4: Redirect applications.

Why wrong: This is incorrect because you must identify the backup before creating the instance, as the backup determines the required instance configuration (e.g., region, size). Ordering creation before identification is inefficient.

Step 1: Identify the backup, Step 2: Redirect applications to a new instance, Step 3: Restore the backup to the new instance, Step 4: Verify the restoration.

Why wrong: This is incorrect because redirecting applications before restoring data causes downtime or errors (applications connect to an empty instance). Restoration must complete before redirecting.