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 the App Engine service account and https://www.googleapis.com/auth/drive.file scope that generates a signed JWT.
• B.With an OAuth Client ID that uses the https://www.googleapis.com/auth/drive.file scope to obtain an access token for each user.
• C.With an OAuth Client ID with delegated domain-wide authority.
• D.With the App Engine service account with delegated domain-wide authority.

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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.Replace the current single instance MySQL instance with Cloud SQL, and configure high availability.
• B.Replace the current single instance MySQL instance with Cloud SQL, and Google provides redundancy without further configuration.
• C.Use the current single instance MySQL on Compute Engine, and replicate the data to Cloud SQL in an external master configuration.
• D.Use the current single instance MySQL on Compute Engine and several read-only MySQL servers on Compute Engine.

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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.

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You have an application deployed in production. When a new version is deployed, you want to ensure that all production traffic is routed to the new version of your application. You also want to keep the previous version deployed so that you can revert to it if there is an issue with the new version.
Which deployment strategy should you use?

• A.Blue/green deployment
• B.Canary deployment
• C.Recreate deployment
• D.Rolling deployment

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Your company has a data warehouse that keeps your application information in BigQuery. The BigQuery data warehouse keeps 2 PBs of user data. Recently, your company expanded your user base to include EU users and needs to comply with these requirements:
Your company must be able to delete all user account information upon user request.
All EU user data must be stored in a single region specifically for EU users.
Which two actions should you take? (Choose two.)

• A.Use BigQuery federated queries to query data from Cloud Storage.
• B.Create a dataset in the EU region that will keep information about EU users only.
• C.Create a Cloud Storage bucket in the EU region to store information for EU users only.
• D.Re-upload your data using to a Cloud Dataflow pipeline by filtering your user records out.
• E.Use DML statements in BigQuery to update/delete user records based on their requests.

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