Google ASSOCIATE-CLOUD-ENGINEER Online Practice Questions and Exam Preparation

Google ASSOCIATE-CLOUD-ENGINEER Online Questions & Answers

• Question 381:

  You are deploying an application to App Engine. You want the number of instances to scale based on request rate. You need at least 3 unoccupied instances at all times. Which scaling type should you use?

  A. Manual Scaling with 3 instances.
  B. Basic Scaling with min_instances set to 3.
  C. Basic Scaling with max_instances set to 3.
  D. Automatic Scaling with min_idle_instances set to 3.
  D. Automatic Scaling with min_idle_instances set to 3.

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  Explanation

  https://cloud.google.com/appengine/docs/standard/go/config/appref

  "App Engine calculates the number of instances necessary to serve your current application traffic based on scaling settings such as target_cpu_utilization and target_throughput_utilization. Setting min_idle_instances specifies the number of

  instances to run in addition to this calculated number. For example, if App Engine calculates that 5 instances are necessary to serve traffic, and min_idle_instances is set to 2, App Engine will run 7 instances (5, calculated based on traffic,

  plus 2 additional per min_idle_instances)."

• Question 382:

  You are developing a new web application that will be deployed on Google Cloud Platform. As part of your release cycle, you want to test updates to your application on a small portion of real user traffic. The majority of the users should still be directed towards a stable version of your application. What should you do?

  A. Deploy me application on App Engine For each update, create a new version of the same service Configure traffic splitting to send a small percentage of traffic to the new version
  B. Deploy the application on App Engine For each update, create a new service Configure traffic splitting to send a small percentage of traffic to the new service.
  C. Deploy the application on Kubernetes Engine For a new release, update the deployment to use the new version
  D. Deploy the application on Kubernetes Engine For a now release, create a new deployment for the new version Update the service e to use the now deployment.
  A. Deploy me application on App Engine For each update, create a new version of the same service Configure traffic splitting to send a small percentage of traffic to the new version

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  Explanation

  Keyword, Version, traffic splitting, App Engine supports traffic splitting for versions before releasing.

• Question 383:

  You used the gcloud container clusters command to create two Google Cloud Kubernetes (GKE) clusters: prod-cluster and dev-cluster.

  1.prod-cluster is a standard cluster.

  2.dev-cluster is an auto-pilot cluster.

  When you run the kubectl get nodes command, you only see the nodes from prod-cluster. Which commands should you run to check the node status for dev-cluster?

  A. gcloud container clusters get-credentials dev-cluster kubectl get nodes
  B. gcloud container clusters update -generate-password dev-cluster kubectl get nodes
  C. kubectl config set-context dev-cluster kubectl cluster-info
  D. kubectl config set-credentials dev-cluster kubectl cluster-info
  A. gcloud container clusters get-credentials dev-cluster kubectl get nodes

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  Explanation

  The gcloud container clusters get-credentials command sets the Kubernetes context to the specified cluster (in this case, dev-cluster). This ensures that the subsequent kubectl commands will be executed against the dev-cluster. After setting the context, the kubectl get nodes command is used to retrieve the node status for the dev-cluster, showing the list of nodes in the cluster.

• Question 384:

  Your existing application running in Google Kubernetes Engine (GKE) consists of multiple pods running on four GKE n1-standard-2 nodes. You need to deploy additional pods requiring n2-highmem-16 nodes without any downtime. What should you do?

  A. Use gcloud container clusters upgrade. Deploy the new services.
  B. Create a new Node Pool and specify machine type n2-highmem-16. Deploy the new pods.
  C. Create a new cluster with n2-highmem-16 nodes. Redeploy the pods and delete the old cluster.
  D. Create a new cluster with both n1-standard-2 and n2-highmem-16 nodes. Redeploy the pods and delete the old cluster.
  B. Create a new Node Pool and specify machine type n2-highmem-16. Deploy the new pods.

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  Explanation

  B is correct answer, read below form google docs;

  This tutorial demonstrates how to migrate workloads running on a Google Kubernetes Engine (GKE) cluster to a new set of nodes within the same cluster without incurring downtime for your application. Such a migration can be useful if you

  want to migrate your workloads to nodes with a different machine type.

  Background

  A node pool is a subset of machines that all have the same configuration, including machine type (CPU and memory) authorization scopes. Node pools represent a subset of nodes within a cluster; a container cluster can contain one or more

  node pools.

  When you need to change the machine profile of your Compute Engine cluster, you can create a new node pool and then migrate your workloads over to the new node pool.

  To migrate your workloads without incurring downtime, you need to:

  Mark the existing node pool as unschedulable.

  Drain the workloads running on the existing node pool.

  Delete the existing node pool.

  https://cloud.google.com/kubernetes-engine/docs/tutorials/migrating-node-pool#creating_a_node_pool_with_large_machine_type

• Question 385:

  Your team is working on designing an IoT solution. There are thousands of devices that need to send periodic time series data for processing. Which services should be used to ingest and store the data?

  A. Pub/Sub, Datastore
  B. Pub/Sub, Dataproc
  C. Dataproc, Bigtable
  D. Pub/Sub, Bigtable
  D. Pub/Sub, Bigtable

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  Explanation

• Question 386:

  You have an application that receives SSL-encrypted TCP traffic on port 443. Clients for this application are located all over the world. You want to minimize latency for the clients. Which load balancing option should you use?

  A. HTTPS Load Balancer
  B. Network Load Balancer
  C. SSL Proxy Load Balancer
  D. Internal TCP/UDP Load Balancer. Add a firewall rule allowing ingress traffic from 0.0.0.0/0 on the target instances.
  C. SSL Proxy Load Balancer

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  Explanation

  https://cloud.google.com/load-balancing/docs/ssl

• Question 387:

  You are building an application that stores relational data from users. Users across the globe will use this application. Your CTO is concerned about the scaling requirements because the size of the user base is unknown. You need to implement a database solution that can scale with your user growth with minimum configuration changes. Which storage solution should you use?

  A. Cloud SQL
  B. Cloud Spanner
  C. Cloud Firestore
  D. Cloud Datastore
  B. Cloud Spanner

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  Explanation

  Cloud Firestore and Cloud Datastore - can easily be eliminated doesn't fall under Relational DB

• Question 388:

  You want to find out when users were added to Cloud Spanner Identity Access Management (IAM) roles on your Google Cloud Platform (GCP) project. What should you do in the GCP Console?

  A. Open the Cloud Spanner console to review configurations.
  B. Open the IAM and admin console to review IAM policies for Cloud Spanner roles.
  C. Go to the Stackdriver Monitoring console and review information for Cloud Spanner.
  D. Go to the Stackdriver Logging console, review admin activity logs, and filter them for Cloud Spanner IAM roles.
  D. Go to the Stackdriver Logging console, review admin activity logs, and filter them for Cloud Spanner IAM roles.

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  Explanation

  Activity logs captures the time when the users were given the IAM roles for Cloud Spanner

• Question 389:

  You've found that your Linux server keeps running low on memory. It's currently using 8 Gigs of memory, and you want to increase it to 16. What is the simplest way to do that?

  A. Use the gcloud compute add-memory command to increase the memory.
  B. Use the Linux memincr command to increase the memory.
  C. Stop the instance and change the machine type.
  D. Create a new instance with the correct amount of memory.
  B. Use the Linux memincr command to increase the memory.

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  Explanation

• Question 390:

  Your Dataproc cluster runs in a single Virtual Private Cloud (VPC) network in a single subnet with range 172.16.20.128/25. There are no private IP addresses available in the VPC network. You want to add new VMs to communicate with your cluster using the minimum number of steps. What should you do?

  A. Modify the existing subnet range to 172.16.20.0/24.
  B. Create a new Secondary IP Range in the VPC and configure the VMs to use that range.
  C. Create a new VPC network for the VMs. Enable VPC Peering between the VMs' VPC network and the Dataproc cluster VPC network.
  D. Create a new VPC network for the VMs with a subnet of 172.32.0.0/16. Enable VPC network Peering between the Dataproc VPC network and the VMs VPC network. Configure a custom Route exchange.
  A. Modify the existing subnet range to 172.16.20.0/24.

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  Explanation

  gcloud compute networks subnets expand-ip-range NAME gcloud compute networks subnets expand-ip-range - expand the IP range of a Compute Engine subnetwork