What happens to a Redis cluster when a primary shard fails and a replica is promoted?

The cluster becomes read-only until the original primary is restored

The replica is promoted to primary and the cluster continues to operate

The cluster shuts down to prevent data inconsistency

All data in the cluster is deleted

A company runs a critical data processing job on a Compute Engine VM. They want to ensure that if the VM fails, the job can be restarted automatically without manual intervention. What should they do?

Set up a cron job on another VM to restart the failed VM.

Use a managed instance group with an instance template and configure autohealing.

Create a snapshot of the VM and restore it manually when it fails.

Use a single VM and rely on the job's internal retry logic.

A company uses Cloud Spanner for a global application. They need to ensure that data is durable and available even if a zone fails. They also want to minimize the risk of data loss during a failover. What should they configure?

Use a single-region instance with one node.

Use a single-region instance and rely on automatic backups.

Use a single-region instance with asynchronous replication to a backup.

Use a multi-region instance configuration with synchronous replication across regions.

In a managed service like Cloud SQL, what is the primary purpose of a failover mechanism?

To back up data to a different region

To increase the storage capacity of the primary instance

To automatically switch to a standby instance when the primary fails

To improve query performance by distributing load

Google CloudProfessional Data Engineer

Domain 5Objective 5

5.5 Maintaining Awareness of Failures and Mitigating Impact PROFESSIONAL-DATA-ENGINEER Practice Questions (Page 3)

Part of the Maintaining and automating data workloads domain, which accounts for ~18% of the PROFESSIONAL-DATA-ENGINEER exam. Google Cloud does not publish an official question count, but from its 120-minute exam (~50–80 total, ~9–14 in this domain), expect 2–3 from this objective — we provide 25 practice questions to prepare you well beyond it. (estimate)

25questions here

5free pages

8concepts

~18%of the exam

Questions 11–15

11foundation · easy
What happens to a Redis cluster when a primary shard fails and a replica is promoted?
Select an answer first
12application · medium
A company runs a critical data processing job on a Compute Engine VM. They want to ensure that if the VM fails, the job can be restarted automatically without manual intervention. What should they do?
Select an answer first
13foundation · easy
Which fault tolerance principle is being applied when a streaming pipeline continues to process a subset of events after a downstream analytics service becomes unavailable, rather than shutting down entirely?
Select an answer first
14application · medium
A company uses Cloud Spanner for a global application. They need to ensure that data is durable and available even if a zone fails. They also want to minimize the risk of data loss during a failover. What should they configure?
Select an answer first
15foundation · easy
In a managed service like Cloud SQL, what is the primary purpose of a failover mechanism?
Select an answer first

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