You have an application that uses Cloud Spanner as a backend database. The application has a very predictable traffic pattern. You want to automatically scale up or down the number of Spanner nodes depending on traffic. What should you do?

• A.Create a cron job that runs on a scheduled basis to review stackdriver monitoring metrics, and then resize the Spanner instance accordingly.
• B.Create a Stackdriver alerting policy to send an alert to oncall SRE emails when Cloud Spanner CPU exceeds the threshold. SREs would scale resources up or down accordingly.
• C.Create a Stackdriver alerting policy to send an alert to Google Cloud Support email when Cloud Spanner CPU exceeds your threshold. Google support would scale resources up or down accordingly.
• D.Create a Stackdriver alerting policy to send an alert to webhook when Cloud Spanner CPU is over or under your threshold. Create a Cloud Function that listens to HTTP and resizes Spanner resources accordingly.

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You need to select and configure compute resources for a set of batch processing jobs. These jobs take around
2 hours to complete and are run nightly. You want to minimize service costs. What should you do?

• A.Select Compute Engine. Use preemptible VM instances of the appropriate standard machine type.
• B.Select Google Kubernetes Engine. Use a single-node cluster with a small instance type.
• C.Select Compute Engine. Use VM instance types that support micro bursting.
• D.Select Google Kubernetes Engine. Use a three-node cluster with micro instance types.

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You are designing an application that lets users upload and share photos. You expect your application to grow really fast and you are targeting a worldwide audience. You want to delete uploaded photos after 30 days. You want to minimize costs while ensuring your application is highly available. Which GCP storage solution should you choose?

• A.Persistent SSD on VM instances.
• B.Cloud Filestore.
• C.Multiregional Cloud Storage bucket.
• D.Cloud Datastore database.

Correct Answer: C

Cloud Storage allows world-wide storage and retrieval of any amount of data at any time. We dont need to set up auto-scaling ourselves. Cloud Storage autoscaling is managed by GCP. Cloud Storage is an object store so it is suitable for storing photos. Cloud Storage allows world-wide storage and retrieval so cater well to our worldwide audience. Cloud storage provides us lifecycle rules that can be configured to automatically delete objects older than 30 days. This also fits our requirements. Finally, Google Cloud Storage offers several storage classes such as Nearline Storage ($0.01 per GB per Month) Coldline Storage ($0.007 per GB per Month) and Archive Storage ($0.004 per GB per month) which are significantly cheaper than any of the options above.
Ref: https://cloud.google.com/storage/docs
Ref: https://cloud.google.com/storage/pricing

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You need to create a new billing account and then link it with an existing Google Cloud Platform project. What should you do?

• A.Verify that you are Project Billing Manager for the GCP project. Update the existing project to link it to the existing billing account.
• B.Verify that you are Project Billing Manager for the GCP project. Create a new billing account and link the new billing account to the existing project.
• C.Verify that you are Billing Administrator for the billing account. Create a new project and link the new project to the existing billing account.
• D.Verify that you are Billing Administrator for the billing account. Update the existing project to link it to the existing billing account.

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Your company wants to standardize the creation and management of multiple Google Cloud resources using Infrastructure as Code. You want to minimize the amount of repetitive code needed to manage the environment. What should you do?

• A.Develop templates for the environment using Cloud Deployment Manager.
• B.Use curl in a terminal to send a REST request to the relevant Google API for each individual resource.
• C.Use the Cloud Console interface to provision and manage all related resources.
• D.Create a bash script that contains all requirement steps as gcloud commands.

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