Question 1

You are planning to migrate a MySQL database to the managed Cloud SQL database for Google Cloud. You have Compute Engine virtual machine instances that will connect with this Cloud SQL instance. You do not want to whitelist IPs for the Compute Engine instances to be able to access Cloud SQL. What should you do?
A) Enable private IP for the Cloud SQL instance.
B) Whitelist a project to access Cloud SQL, and add Compute Engine instances in the whitelisted project.
C) Create a role in Cloud SQL that allows access to the database from external instances, and assign the Compute Engine instances to that role.
D) Create a CloudSQL instance on one project. Create Compute engine instances in a different project. Create a VPN between these two projects to allow internal access to CloudSQL.

Accepted Answer

The answer of You are planning to migrate a MySQL...

Question 2

Your company is planning to migrate their on-premises Hadoop environment to the cloud. Increasing storage cost and maintenance of data stored in HDFS is a major concern for your company. You also want to make minimal changes to existing data analytics jobs and existing architecture. How should you proceed with the migration?
A) Migrate your data stored in Hadoop to BigQuery. Change your jobs to source their information from BigQuery instead of the on-premises Hadoop environment.
B) Create Compute Engine instances with HDD instead of SSD to save costs. Then perform a full migration of your existing environment into the new one in Compute Engine instances.
C) Create a Cloud Dataproc cluster on Google Cloud Platform, and then migrate your Hadoop environment to the new Cloud Dataproc cluster. Move your HDFS data into larger HDD disks to save on storage costs.
D) Create a Cloud Dataproc cluster on Google Cloud Platform, and then migrate your Hadoop code objects to the new cluster. Move your data to Cloud Storage and leverage the Cloud Dataproc connector to run jobs on that data.

Accepted Answer

Migrating to Cloud Dataproc allows you to maintain compatibility with existing Hadoop jobs, while moving data to Cloud Storage reduces storage costs and maintenance. The Cloud Dataproc connector enables seamless integration with Cloud Storage, minimizing changes to your existing architecture.

Question 3

You are working on a social media application. You plan to add a feature that allows users to upload images. These images will be 2 MB - 1 GB in size. You want to minimize their infrastructure operations overhead for this feature. What should you do?
A) Change the application to accept images directly and store them in the database that stores other user information.
B) Change the application to create signed URLs for Cloud Storage. Transfer these signed URLs to the client application to upload images to Cloud Storage.
C) Set up a web server on GCP to accept user images and create a file store to keep uploaded files. Change the application to retrieve images from the file store.
D) Create a separate bucket for each user in Cloud Storage. Assign a separate service account to allow write access on each bucket. Transfer service account credentials to the client application based on user information. The application uses this service account to upload images to Cloud Storage.

Accepted Answer

Using signed URLs for Cloud Storage allows clients to upload images directly to the storage, reducing the need for server-side handling and minimizing infrastructure overhead.

Question 4

Your company has a BigQuery data mart that provides analytics information to hundreds of employees. One user of wants to run jobs without interrupting important workloads. This user isn't concerned about the time it takes to run these jobs. You want to fulfill this request while minimizing cost to the company and the effort required on your part. What should you do?
A) Ask the user to run the jobs as batch jobs.
B) Create a separate project for the user to run jobs.
C) Add the user as a job.user role in the existing project.
D) Allow the user to run jobs when important workloads are not running.

Accepted Answer

The answer of Your company has a BigQuery data mart...

Question 5

You are using Cloud Build to build and test application source code stored in Cloud Source Repositories. The build process requires a build tool not available in the Cloud Build environment. What should you do?
A) Download the binary from the internet during the build process.
B) Build a custom cloud builder image and reference the image in your build steps.
C) Include the binary in your Cloud Source Repositories repository and reference it in your build scripts.
D) Ask to have the binary added to the Cloud Build environment by filing a feature request against the Cloud Build public Issue Tracker.

Accepted Answer

Building a custom cloud builder image allows you to include any necessary tools and dependencies that are not available in the default Cloud Build environment, ensuring they are available during the build process.

Question 6

Case Study Company Overview HipLocal is a community application designed to facilitate communication between people in close proximity. It is used for event planning and organizing sporting events, and for businesses to connect with their local communities. HipLocal launched recently in a few neighborhoods in Dallas and is rapidly growing into a global phenomenon. Its unique style of hyper-local community communication and business outreach is in demand around the world. Executive Statement We are the number one local community app; it's time to take our local community services global. Our venture capital investors want to see rapid growth and the same great experience for new local and virtual communities that come online, whether their members are 10 or 10000 miles away from each other. Solution Concept HipLocal wants to expand their existing service, with updated functionality, in new regions to better serve their global customers. They want to hire and train a new team to support these regions in their time zones. They will need to ensure that the application scales smoothly and provides clear uptime data. Existing Technical Environment HipLocal's environment is a mix of on-premises hardware and infrastructure running in Google Cloud Platform. The HipLocal team understands their application well, but has limited experience in global scale applications. Their existing technical environment is as follows: • Existing APIs run on Compute Engine virtual machine instances hosted in GCP.
• State is stored in a single instance MySQL database in GCP.
• Data is exported to an on-premises Teradata/Vertica data warehouse.
• Data analytics is performed in an on-premises Hadoop environment.
• The application has no logging.
• There are basic indicators of uptime; alerts are frequently fired when the APIs are unresponsive. Business Requirements HipLocal's investors want to expand their footprint and support the increase in demand they are seeing. Their requirements are:
• Expand availability of the application to new regions.
• Increase the number of concurrent users that can be supported.
• Ensure a consistent experience for users when they travel to different regions.
• Obtain user activity metrics to better understand how to monetize their product.
• Ensure compliance with regulations in the new regions (for example, GDPR).
• Reduce infrastructure management time and cost.
• Adopt the Google-recommended practices for cloud computing. Technical Requirements
• The application and backend must provide usage metrics and monitoring.
• APIs require strong authentication and authorization.
• Logging must be increased, and data should be stored in a cloud analytics platform.
• Move to serverless architecture to facilitate elastic scaling.
• Provide authorized access to internal apps in a secure manner. HipLocal's APIs are showing occasional failures, but they cannot find a pattern. They want to collect some metrics to help them troubleshoot. What should they do?
A) Take frequent snapshots of all of the VMs.
B) Install the Stackdriver Logging agent on the VMs.
C) Install the Stackdriver Monitoring agent on the VMs.
D) Use Stackdriver Trace to look for performance bottlenecks.

Accepted Answer

Installing the Stackdriver Monitoring agent on the VMs will help HipLocal collect metrics and monitor the performance of their APIs, which is essential for troubleshooting occasional failures.

Question 7

You want to view the memory usage of your application deployed on Compute Engine. What should you do?
A) Install the Stackdriver Client Library.
B) Install the Stackdriver Monitoring Agent.
C) Use the Stackdriver Metrics Explorer.
D) Use the Google Cloud Platform Console.

Accepted Answer

The answer of You want to view the memory usage...

Question 8

Case Study Company Overview HipLocal is a community application designed to facilitate communication between people in close proximity. It is used for event planning and organizing sporting events, and for businesses to connect with their local communities. HipLocal launched recently in a few neighborhoods in Dallas and is rapidly growing into a global phenomenon. Its unique style of hyper-local community communication and business outreach is in demand around the world. Executive Statement We are the number one local community app; it's time to take our local community services global. Our venture capital investors want to see rapid growth and the same great experience for new local and virtual communities that come online, whether their members are 10 or 10000 miles away from each other. Solution Concept HipLocal wants to expand their existing service, with updated functionality, in new regions to better serve their global customers. They want to hire and train a new team to support these regions in their time zones. They will need to ensure that the application scales smoothly and provides clear uptime data. Existing Technical Environment HipLocal's environment is a mix of on-premises hardware and infrastructure running in Google Cloud Platform. The HipLocal team understands their application well, but has limited experience in global scale applications. Their existing technical environment is as follows: • Existing APIs run on Compute Engine virtual machine instances hosted in GCP.
• State is stored in a single instance MySQL database in GCP.
• Data is exported to an on-premises Teradata/Vertica data warehouse.
• Data analytics is performed in an on-premises Hadoop environment.
• The application has no logging.
• There are basic indicators of uptime; alerts are frequently fired when the APIs are unresponsive. Business Requirements HipLocal's investors want to expand their footprint and support the increase in demand they are seeing. Their requirements are:
• Expand availability of the application to new regions.
• Increase the number of concurrent users that can be supported.
• Ensure a consistent experience for users when they travel to different regions.
• Obtain user activity metrics to better understand how to monetize their product.
• Ensure compliance with regulations in the new regions (for example, GDPR).
• Reduce infrastructure management time and cost.
• Adopt the Google-recommended practices for cloud computing. Technical Requirements
• The application and backend must provide usage metrics and monitoring.
• APIs require strong authentication and authorization.
• Logging must be increased, and data should be stored in a cloud analytics platform.
• Move to serverless architecture to facilitate elastic scaling.
• Provide authorized access to internal apps in a secure manner. HipLocal wants to improve the resilience of their MySQL deployment, while also meeting their business and technical requirements. Which configuration should they choose?
A) Use the current single instance MySQL on Compute Engine and several read-only MySQL servers on Compute Engine.
B) Use the current single instance MySQL on Compute Engine, and replicate the data to Cloud SQL in an external master configuration.
C) Replace the current single instance MySQL instance with Cloud SQL, and configure high availability.
D) Replace the current single instance MySQL instance with Cloud SQL, and Google provides redundancy without further configuration.

Accepted Answer

The answer of Case Study Company Overview HipLocal is a...

Question 9

Your data is stored in Cloud Storage buckets. Fellow developers have reported that data downloaded from Cloud Storage is resulting in slow API performance. You want to research the issue to provide details to the GCP support team. Which command should you run?
A) gsutil test -o output.json gs://my-bucket
B) gsutil perfdiag -o output.json gs://my-bucket
C) gcloud compute scp example-instance:~/test-data -o output.json gs://my-bucket
D) gcloud services test -o output.json gs://my-bucket

Accepted Answer

The `gsutil perfdiag` command is used to diagnose performance issues with Google Cloud Storage, making it suitable for investigating slow API performance related to data downloads.

Question 10

You are developing a JPEG image-resizing API hosted on Google Kubernetes Engine (GKE). Callers of the service will exist within the same GKE cluster. You want clients to be able to get the IP address of the service. What should you do?
A) Define a GKE Service. Clients should use the name of the A record in Cloud DNS to find the service's cluster IP address.
B) Define a GKE Service. Clients should use the service name in the URL to connect to the service.
C) Define a GKE Endpoint. Clients should get the endpoint name from the appropriate environment variable in the client container.
D) Define a GKE Endpoint. Clients should get the endpoint name from Cloud DNS.

Accepted Answer

The answer of You are developing a JPEG image-resizing API...

Question 11

You need to migrate an internal file upload API with an enforced 500-MB file size limit to App Engine. What should you do?
A) Use FTP to upload files.
B) Use CPanel to upload files.
C) Use signed URLs to upload files.
D) Change the API to be a multipart file upload API.

Accepted Answer

Signed URLs allow clients to upload files directly to a storage service, bypassing the App Engine's file size limitations.

Question 12

You have an application controlled by a managed instance group. When you deploy a new version of the application, costs should be minimized and the number of instances should not increase. You want to ensure that, when each new instance is created, the deployment only continues if the new instance is healthy. What should you do?
A) Perform a rolling-action with maxSurge set to 1, maxUnavailable set to 0.
B) Perform a rolling-action with maxSurge set to 0, maxUnavailable set to 1
C) Perform a rolling-action with maxHealthy set to 1, maxUnhealthy set to 0.
D) Perform a rolling-action with maxHealthy set to 0, maxUnhealthy set to 1.

Accepted Answer

A rolling-action with maxSurge set to 1 and maxUnavailable set to 0 ensures that only one new instance is created at a time and that no instances are removed from the group until the new instance is healthy.

Question 13

Case Study Company Overview HipLocal is a community application designed to facilitate communication between people in close proximity. It is used for event planning and organizing sporting events, and for businesses to connect with their local communities. HipLocal launched recently in a few neighborhoods in Dallas and is rapidly growing into a global phenomenon. Its unique style of hyper-local community communication and business outreach is in demand around the world. Executive Statement We are the number one local community app; it's time to take our local community services global. Our venture capital investors want to see rapid growth and the same great experience for new local and virtual communities that come online, whether their members are 10 or 10000 miles away from each other. Solution Concept HipLocal wants to expand their existing service, with updated functionality, in new regions to better serve their global customers. They want to hire and train a new team to support these regions in their time zones. They will need to ensure that the application scales smoothly and provides clear uptime data. Existing Technical Environment HipLocal's environment is a mix of on-premises hardware and infrastructure running in Google Cloud Platform. The HipLocal team understands their application well, but has limited experience in global scale applications. Their existing technical environment is as follows: • Existing APIs run on Compute Engine virtual machine instances hosted in GCP.
• State is stored in a single instance MySQL database in GCP.
• Data is exported to an on-premises Teradata/Vertica data warehouse.
• Data analytics is performed in an on-premises Hadoop environment.
• The application has no logging.
• There are basic indicators of uptime; alerts are frequently fired when the APIs are unresponsive. Business Requirements HipLocal's investors want to expand their footprint and support the increase in demand they are seeing. Their requirements are:
• Expand availability of the application to new regions.
• Increase the number of concurrent users that can be supported.
• Ensure a consistent experience for users when they travel to different regions.
• Obtain user activity metrics to better understand how to monetize their product.
• Ensure compliance with regulations in the new regions (for example, GDPR).
• Reduce infrastructure management time and cost.
• Adopt the Google-recommended practices for cloud computing. Technical Requirements
• The application and backend must provide usage metrics and monitoring.
• APIs require strong authentication and authorization.
• Logging must be increased, and data should be stored in a cloud analytics platform.
• Move to serverless architecture to facilitate elastic scaling.
• Provide authorized access to internal apps in a secure manner. HipLocal wants to reduce the number of on-call engineers and eliminate manual scaling. Which two services should they choose? (Choose two.)
A) Use Google App Engine services.
B) Use serverless Google Cloud Functions.
C) Use Knative to build and deploy serverless applications.
D) Use Google Kubernetes Engine for automated deployments.
E) Use a large Google Compute Engine cluster for deployments.

Accepted Answer

Serverless Google Cloud Functions and Knative are both serverless platforms that can help HipLocal reduce the number of on-call engineers and eliminate manual scaling.

Question 14

Your analytics system executes queries against a BigQuery dataset. The SQL query is executed in batch and passes the contents of a SQL file to the BigQuery CLI. Then it redirects the BigQuery CLI output to another process. However, you are getting a permission error from the BigQuery CLI when the queries are executed. You want to resolve the issue. What should you do?
A) Grant the service account BigQuery Data Viewer and BigQuery Job User roles.
B) Grant the service account BigQuery Data Editor and BigQuery Data Viewer roles.
C) Create a view in BigQuery from the SQL query and SELECT* from the view in the CLI. Create a view in BigQuery from the SQL query and SELECT* from the view in the CLI.
D) Create a new dataset in BigQuery, and copy the source table to the new dataset Query the new dataset and table from the CLI.

Accepted Answer

The answer of Your analytics system executes queries against a...

Question 15

You are creating an App Engine application that writes a file to any user's Google Drive. How should the application authenticate to the Google Drive API?
A) With an OAuth Client ID that uses the https://www.googleapis.com/auth/drive.file scope to obtain an access token for each user. With an OAuth Client ID that uses the https://www.googleapis.com/auth/drive.file scope to obtain an access token for each user.
B) With an OAuth Client ID with delegated domain-wide authority.
C) With the App Engine service account and https://www.googleapis.com/auth/drive.file scope that generates a signed JWT. With the App Engine service account and scope that generates a signed JWT.
D) With the App Engine service account with delegated domain-wide authority.

Accepted Answer

The answer of You are creating an App Engine application...

Question 16

You want to use the Stackdriver Logging Agent to send an application's log file to Stackdriver from a Compute Engine virtual machine instance. After installing the Stackdriver Logging Agent, what should you do first?
A) Enable the Error Reporting API on the project.
B) Grant the instance full access to all Cloud APIs.
C) Configure the application log file as a custom source.
D) Create a Stackdriver Logs Export Sink with a filter that matches the application's log entries.

Accepted Answer

The answer of You want to use the Stackdriver Logging...

Question 17

Case Study Company Overview HipLocal is a community application designed to facilitate communication between people in close proximity. It is used for event planning and organizing sporting events, and for businesses to connect with their local communities. HipLocal launched recently in a few neighborhoods in Dallas and is rapidly growing into a global phenomenon. Its unique style of hyper-local community communication and business outreach is in demand around the world. Executive Statement We are the number one local community app; it's time to take our local community services global. Our venture capital investors want to see rapid growth and the same great experience for new local and virtual communities that come online, whether their members are 10 or 10000 miles away from each other. Solution Concept HipLocal wants to expand their existing service, with updated functionality, in new regions to better serve their global customers. They want to hire and train a new team to support these regions in their time zones. They will need to ensure that the application scales smoothly and provides clear uptime data. Existing Technical Environment HipLocal's environment is a mix of on-premises hardware and infrastructure running in Google Cloud Platform. The HipLocal team understands their application well, but has limited experience in global scale applications. Their existing technical environment is as follows: • Existing APIs run on Compute Engine virtual machine instances hosted in GCP.
• State is stored in a single instance MySQL database in GCP.
• Data is exported to an on-premises Teradata/Vertica data warehouse.
• Data analytics is performed in an on-premises Hadoop environment.
• The application has no logging.
• There are basic indicators of uptime; alerts are frequently fired when the APIs are unresponsive. Business Requirements HipLocal's investors want to expand their footprint and support the increase in demand they are seeing. Their requirements are:
• Expand availability of the application to new regions.
• Increase the number of concurrent users that can be supported.
• Ensure a consistent experience for users when they travel to different regions.
• Obtain user activity metrics to better understand how to monetize their product.
• Ensure compliance with regulations in the new regions (for example, GDPR).
• Reduce infrastructure management time and cost.
• Adopt the Google-recommended practices for cloud computing. Technical Requirements
• The application and backend must provide usage metrics and monitoring.
• APIs require strong authentication and authorization.
• Logging must be increased, and data should be stored in a cloud analytics platform.
• Move to serverless architecture to facilitate elastic scaling.
• Provide authorized access to internal apps in a secure manner. In order to meet their business requirements, how should HipLocal store their application state?
A) Use local SSDs to store state.
B) Put a memcache layer in front of MySQL.
C) Move the state storage to Cloud Spanner.
D) Replace the MySQL instance with Cloud SQL.

Accepted Answer

The answer of Case Study Company Overview HipLocal is a...

Question 18

Your application performs well when tested locally, but it runs significantly slower when you deploy it to App Engine standard environment. You want to diagnose the problem. What should you do?
A) File a ticket with Cloud Support indicating that the application performs faster locally.
B) Use Stackdriver Debugger Snapshots to look at a point-in-time execution of the application.
C) Use Stackdriver Trace to determine which functions within the application have higher latency.
D) Add logging commands to the application and use Stackdriver Logging to check where the latency problem occurs.

Accepted Answer

The answer of Your application performs well when tested locally,...

Question 19

You are using Cloud Build build to promote a Docker image to Development, Test, and Production environments. You need to ensure that the same Docker image is deployed to each of these environments. How should you identify the Docker image in your build?
A) Use the latest Docker image tag.
B) Use a unique Docker image name.
C) Use the digest of the Docker image.
D) Use a semantic version Docker image tag.

Accepted Answer

The answer of You are using Cloud Build build to...

Question 20

You migrated your applications to Google Cloud Platform and kept your existing monitoring platform. You now find that your notification system is too slow for time critical problems. What should you do?
A) Replace your entire monitoring platform with Stackdriver.
B) Install the Stackdriver agents on your Compute Engine instances.
C) Use Stackdriver to capture and alert on logs, then ship them to your existing platform.
D) Migrate some traffic back to your old platform and perform AB testing on the two platforms concurrently.

Accepted Answer

Installing Stackdriver agents on your Compute Engine instances will allow you to leverage Stackdriver's real-time monitoring and alerting capabilities, which can improve the speed of notifications for time-critical problems without needing to replace your entire monitoring platform.

Exam 13: Professional Cloud Developer

You are working on a social media application. You plan to add a feature that allows users to upload images. These images will be 2 MB - 1 GB in size. You want to minimize their infrastructure operations overhead for this feature. What should you do?

You are using Cloud Build to build and test application source code stored in Cloud Source Repositories. The build process requires a build tool not available in the Cloud Build environment. What should you do?

You want to view the memory usage of your application deployed on Compute Engine. What should you do?

Your data is stored in Cloud Storage buckets. Fellow developers have reported that data downloaded from Cloud Storage is resulting in slow API performance. You want to research the issue to provide details to the GCP support team. Which command should you run?

You are developing a JPEG image-resizing API hosted on Google Kubernetes Engine (GKE) . Callers of the service will exist within the same GKE cluster. You want clients to be able to get the IP address of the service. What should you do?

You need to migrate an internal file upload API with an enforced 500-MB file size limit to App Engine. What should you do?

You are creating an App Engine application that writes a file to any user's Google Drive. How should the application authenticate to the Google Drive API?

You want to use the Stackdriver Logging Agent to send an application's log file to Stackdriver from a Compute Engine virtual machine instance. After installing the Stackdriver Logging Agent, what should you do first?

Your application performs well when tested locally, but it runs significantly slower when you deploy it to App Engine standard environment. You want to diagnose the problem. What should you do?

You are using Cloud Build build to promote a Docker image to Development, Test, and Production environments. You need to ensure that the same Docker image is deployed to each of these environments. How should you identify the Docker image in your build?

You migrated your applications to Google Cloud Platform and kept your existing monitoring platform. You now find that your notification system is too slow for time critical problems. What should you do?