You Have an Application That Uses Cloud Spanner as a Backend

question 152

Multiple Choice

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 Cloud Monitoring metrics, and then resize the Spanner instance accordingly. Create a cron job that runs on a scheduled basis to review Cloud Monitoring metrics, and then resize the Spanner instance accordingly.
• B) Create a Cloud Monitoring 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 Cloud Monitoring 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 Cloud Monitoring 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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Definitions:

Emergency Assessment

The initial evaluation and management of a patient in a critical condition, aiming to stabilize their vital functions.

Shift Change

The process in workplaces, especially in healthcare, where employees transition between coming on duty and leaving duty at different times.

Clustering Data

The process of grouping a set of objects in such a way that objects in the same group are more similar to each other than to those in other groups.

Recognizing Cues

The process of identifying signs or signals that indicate a certain condition or situation.