Question 1

You are designing a highly available (HA) Cloud SQL for PostgreSQL instance that will be used by 100 databases. Each database contains 80 tables that were migrated from your on-premises environment to Google Cloud. The applications that use these databases are located in multiple regions in the US, and you need to ensure that read and write operations have low latency. What should you do?

Options :

A : Deploy 2 Cloud SQL instances in the us-central1 region with HA enabled, and create read replicas in useast1 and us-west1.

B : Deploy 2 Cloud SQL instances in the us-central1 region, and create read replicas in us-east1 and uswest1.

C : Deploy 4 Cloud SQL instances in the us-central1 region with HA enabled, and create read replicas in uscentral1, us-east1, and us-west1.

D : Deploy 4 Cloud SQL instances in the us-central1 region, and create read replicas in us-central1, useast1 and us-west1.

Answer: A

Question 2

Your organization stores marketing data such as customer preferences and purchase history on Bigtable. The consumers of this database are predominantly data analysts and operations users. You receive a service ticket from the database operations department citing poor database performance between 9 AM-10 AM every day. Theapplication team has confirmed no latency from their logs. A new cohort of pilot users that is testing a dataset loaded from a third-party data provider is experiencing poor database performance. Other users are not affected. You need to troubleshoot the issue. What should you do?

Options :

A : Isolate the data analysts and operations user groups to use different Bigtable instances.

B : Check the Cloud Monitoring table/bytes_used metric from Bigtable.

C : Use Key Visualizer for Bigtable.

D : Add more nodes to the Bigtable cluster.

Answer: C

Question 3

You are designing an augmented reality game for iOS and Android devices. You plan to use Cloud Spanner as the primary backend database for game state storage and player authentication. You want to track in-game rewards that players unlock at every stage of the game. During the testing phase, you discovered that costs are much higher than anticipated, but the query response times are within the SLA. You want to follow Googlerecommended practices. You need the database to be performant and highly available while you keep costs low. What should you do?

Options :

A : Manually scale down the number of nodes after the peak period has passed.

B : Use interleaving to co-locate parent and child rows.

C : Use the Cloud Spanner query optimizer to determine the most efficient way to execute the SQL query.

D : Use granular instance sizing in Cloud Spanner and Autoscaler.

Answer: D

Question 4

Your organization has a busy transactional Cloud SQL for MySQL instance. Your analytics team needs access to the data so they can build monthly sales reports. You need to provide data access to the analytics team without adversely affecting performance. What should you do?

Options :

A : Create a read replica of the database, provide the database IP address, username, and password to the analytics team, and grant read access to required tables to the team.

B : Create a read replica of the database, enable the cloudsql.iam_authentication flag on the replica, and grant read access to required tables to the analytics team.

C : Enable the cloudsql.iam_authentication flag on the primary database instance, and grant read access to required tables to the analytics team.

D : Provide the database IP address, username, and password of the primary database instance to the analytics, team, and grant read access to required tables to the team

Answer: B

Question 5

You are configuring a new application that has access to an existing Cloud Spanner database. The new application reads from this database to gather statistics for a dashboard. You want to follow Googlerecommended practices when granting Identity and Access Management (IAM) permissions. What should you do?

Options :

A : Reuse the existing service account that populates this database.

B : Create a new service account, and grant it the Cloud Spanner Database Admin role.

C : Create a new service account, and grant it the Cloud Spanner Database Reader role.

D : Create a new service account, and grant it the spanner.databases.select permission.

Answer: C

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