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.Migrate some traffic back to your old platform and perform AB testing on the two platforms concurrently.
• B.Replace your entire monitoring platform with Stackdriver.
• C.Install the Stackdriver agents on your Compute Engine instances.
• D.Use Stackdriver to capture and alert on logs, then ship them to your existing platform.

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You recently migrated a monolithic application to Google Cloud by breaking it down into microservices. One of the microservices is deployed using Cloud Functions. As you modernize the application, you make a change to the API of the service that is backward-incompatible. You need to support both existing callers who use the original API and new callers who use the new API. What should you do?

• A.Re-deploy the Cloud Function after making code changes to support the new API. Requests for both versions of the API are fulfilled based on a version identifier included in the call.
• B.Leave the original Cloud Function as-is and deploy a second Cloud Function with the new API. Use Cloud Endpoints to provide an API gateway that exposes a versioned API.
• C.Leave the original Cloud Function as-is and deploy a second Cloud Function with the new API. Use a load balancer to distribute calls between the versions.
• D.Leave the original Cloud Function as-is and deploy a second Cloud Function that includes only the changed API. Calls are automatically routed to the correct function.

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Your development team has been asked to refactor an existing monolithic application into a set of composable microservices. Which design aspects should you implement for the new application? (Choose two.)

• A.Develop the microservice code in the same programming language used by the microservice caller.
• B.Create an API contract agreement between the microservice implementation and microservice caller.
• C.Require asynchronous communications between all microservice implementations and microservice callers.
• D.Implement a versioning scheme to permit future changes that could be incompatible with the current interface.
• E.Ensure that sufficient instances of the microservice are running to accommodate the performance requirements.

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You are parsing a log file that contains three columns: a timestamp, an account number (a string), and a transaction amount (a number). You want to calculate the sum of all transaction amounts for each unique account number efficiently.
Which data structure should you use?

• A.A linked list
• B.A hash table
• C.A two-dimensional array
• D.A comma-delimited string

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Which of the following is an ESD precaution that must be taken when working with Apple devices?

• A.Use polyester foam mats to ground the workbench.
• B.Do not place internal components on metal surfaces.
• C.Pick up circuit boards using their connectors.
• D.When handling internal components, wear synthetic materials.

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