Configuring AWS Glue Crawler for Daily Catalog Updates
Short answer
B Create an IAM role with AWSGlueServiceRole, specify the S3 source, schedule the crawler, and define the database name for output.
Question
Key Takeaways
The core concept is configuring a serverless AWS Glue Crawler; the common trap is confusing Glue Crawlers with Spark ETL jobs by incorrectly allocating DPUs or specifying S3 output destinations.
This question addresses how to automate the ingestion of CSV data from S3 into the AWS Glue Data Catalog using scheduled crawlers. It establishes that serverless crawlers require specific IAM roles and database targets, not DPU allocations or S3 output paths.
Common mistake: Option D is a common distractor because it includes DPUs, which are used for provisioned Glue ETL jobs, not for serverless crawlers that scale automatically without manual resource allocation.
Expert Analysis
Why the Answer Is Correct
Option B is the correct solution because it utilizes the AWSGlueServiceRole policy, which grants the necessary permissions for the crawler to read from S3 and write metadata to the Glue Data Catalog. Specifying a database name is required as the output destination for the schema information. Creating a daily schedule ensures the catalog is updated with new records as requested.
Why the Other Options Are Wrong
Options A and C suggest using AmazonS3FullAccess, which is overly permissive and violates least-privilege principles compared to the managed AWSGlueServiceRole. Furthermore, Option A configures an S3 output path, which is incorrect as crawlers update the Data Catalog, not S3 files. Options C and D mention allocating Data Processing Units (DPUs); this is incorrect because Glue Crawlers are serverless and do not require manual DPU provisioning like Glue ETL jobs do.
Community Comment Notes
Community members largely agreed on B, with one user noting that assigning DPUs was the deciding factor against other options. Another commenter clarified that while AWSGlueServiceRole is sufficient, some users questioned if explicit S3 permissions were needed, but the service role handles this integration securely.
Exam Strategy
When dealing with AWS Glue, always distinguish between 'Crawlers' (serverless, no DPU selection) and 'ETL Jobs' (can be serverless or provisioned with DPUs). For crawlers, focus on the IAM role and the Data Catalog database target.
Frequently Asked Questions
Do Glue Crawlers require DPUs?
Why not use AmazonS3FullAccess?
Community Votes
100% of anonymous learners picked answer B. Votes are pick records left by other test-takers — they are not the verified answer.
Discussion 5 contributions
Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.
From public community threads 5
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TonyStark0122 👍 8B. Create an IAM role that includes the AWSGlueServiceRole policy. Associate the role with the crawler. Specify the S3 bucket path of the source data as the crawler's data store. Create a daily schedule to run the crawler. Specify a database name for the output. Explanation: Option B correctly sets up the IAM role with the necessary permissions using the AWSGlueServiceRole policy, which is designed for use with AWS Glue. It specifies the S3 bucket path of the source data as the crawler's data store and creates a daily schedule to run the crawler. Additionally, it specifies a database name for the output, ensuring that the crawled data is properly cataloged in the AWS Glue Data Catalog.
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GiorgioGss 👍 4 Answered BA,C are wrong because you use don't need full S3 access. D is wrong because you don't need to provision DPU and the destination should be a database, not an s3 bucket. so it's B
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k350Secops 👍 4 Answered BGlue Crawlers are serverless. Assigning DPUs is the point where i decided it option B
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plutonash 👍 2 Answered Banswer B is incomplete. Even we include AWSGlueServiceRole policy on IAM role, S3 access is not garantee
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LrdKanien 👍 1How does Glue get access to S3 if you don't do B?
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