GCP-ADP Practice Test 7 — 10 Questions

Question 1

You are processing streaming data in Pub/Sub and need to archive every message into GCS without writing custom code. What should you use?

Accepted Answer

Pub/Sub Cloud Storage subscription. Pub/Sub's native Cloud Storage subscription allows for direct streaming of messages to files in GCS.

Answer

Dataflow

Answer

BigQuery Data Transfer Service

Answer

Cloud Functions

Question 2

Which tool is used to monitor the performance of your Dataflow pipelines?

Accepted Answer

Cloud Monitoring. Cloud Monitoring provides metrics like system lag and CPU utilization for Dataflow.

Answer

Cloud Logging

Answer

BigQuery Console

Answer

Dataprep

Question 3

Which THREE of the following are necessary for a production-ready Dataflow pipeline?

Accepted Answer

Error handling. Monitoring, logging, and error handling are essential.

Answer

Desktop-based processing

Answer

Manual refreshes

Question 4

You need to pass a JSON object into a Workflows execution. How should you format the argument in the 'gcloud workflows executions' command?

Accepted Answer

Use the --data flag with a JSON string.. The '--data' flag accepts a JSON string, which is the standard format for passing parameters to workflows.

Answer

Pipe the JSON into the stdin of the command.

Answer

Use the --env-vars flag.

Answer

Upload the JSON to a GCS bucket and point to it.

Question 5

Which TWO of the following are common reasons a Workflows execution might stay in a 'PENDING' or 'FAILED' state?

Accepted Answer

Invalid YAML syntax. Common issues include invalid IAM permissions or malformed YAML syntax in the workflow definition.

Answer

Airflow scheduler failure

Answer

Database locks

Answer

Worker node exhaustion

Question 6

You are cleaning data using Dataprep. You want to save the final dataset in BigQuery. What do you do?

Accepted Answer

Use the Export feature. In Dataprep, you configure a publishing action to write the results to a BigQuery table.

Answer

Copy the file from GCS

Answer

Use a SQL query

Answer

Wait for Dataflow to finish

Question 7

You need to verify the integrity of a large file uploaded to GCS. What is the standard way to do this?

Accepted Answer

Check MD5 hash. Comparing the MD5 hash provided by GCS against the local file's hash ensures integrity.

Answer

Use Cloud Logging

Answer

Check file size

Answer

Use Dataflow

Question 8

When using Cloud Scheduler to trigger a Workflows execution, what is the best practice for authenticating the scheduler to the Workflows API?

Accepted Answer

Use an OIDC token with a service account.. Using an OIDC token with a service account that has the 'Workflows Invoker' role is the secure, recommended method.

Answer

Use an API Key generated in the console.

Answer

Hardcode credentials in the scheduler job.

Answer

Use 'Public' access for the workflow.

Question 9

Which THREE of the following Cloud Composer 2 features provide improved performance over Composer 1?

Accepted Answer

Unified environment management. Composer 2 offers auto-scaling, custom resource allocation, and environment-level configuration management.

Answer

Requires manual GKE cluster management

Answer

Fixed pricing model

Question 10

You need to store sensitive data in GCS. Which feature ensures data is encrypted at rest?

Accepted Answer

Default Encryption. All data in GCS is encrypted at rest by default using Google-managed keys.

Answer

Identity and Access Management

Answer

Cloud DLP

Answer

Customer-Managed Encryption Keys (CMEK)