Task 2.4: Design Data Models and Schema Evolution DEA-C01 Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   In SageMaker ML Lineage Tracking, what is the term for the entities that represent datasets, algorithms, and models in the lineage graph?

   • AActions
   • BArtifacts
   • CContexts
   • DAssociations
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2. 2foundation · easy

   When using AWS SCT to convert a schema, what type of output does it generate for the target database?

   • AA DynamoDB table with the converted schema
   • BA CloudFormation template for the target database
   • CA new Amazon S3 bucket containing Parquet files
   • DSQL scripts that can be applied to the target database
   Reveal Solution Discussion Select an answer first
4. 3foundation · easy

   A data pipeline now receives 10 times more records per second than before. Which data characteristic has changed, and what schema adaptation is most relevant?

   • AVeracity; implement data validation
   • BVariety; add new columns
   • CVolume; change column data types
   • DVelocity; adjust partitioning and throughput
   Reveal Solution Discussion Select an answer first
5. 4expert · hard

   A social media company stores user posts in a DynamoDB table. The table has user_id as the partition key and post_timestamp as the sort key. A new feature requires displaying a user's posts that have a specific hashtag. The team is considering adding a Global Secondary Index (GSI) with hashtag as the partition key and post_timestamp as the sort key. However, they are concerned about the cost and complexity of this approach. What is the most significant trade-off of using this GSI?

   • AThe GSI will only support eventually consistent reads, which may not be suitable for the feature.
   • BThe GSI will increase the cost of write operations because every write to the base table will also be written to the index.
   • CThe GSI will not be able to query posts by hashtag if the hashtag is not part of the base table's key.
   • DThe GSI will require the base table to be re-created to add the index.
   Reveal Solution Discussion Select an answer first
6. 5foundation · easy

   What is the primary purpose of using Amazon SageMaker Catalog for ML assets?

   • ATo provide a searchable repository of ML models and datasets with governance controls
   • BTo store raw data in S3
   • CTo train machine learning models
   • DTo deploy models to endpoints
   Reveal Solution Discussion Select an answer first