40083312
Descripción
Test por Eladio Rocha, actualizado hace 18 días
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Creado por Eladio Rocha
hace 18 días
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Pregunta 1
Pregunta
What is a "data lake"?
Respuesta
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A formal database for structured data.
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A distributed file storage system containing raw, unstructured data.
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A highly redundant server-based database system.
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A collection of relational database schemas.
Pregunta 2
Pregunta
Which cloud service is commonly used to implement a data lake?
Respuesta
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Amazon RDS
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Amazon S3
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Amazon DynamoDB
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Amazon EC2
Pregunta 3
Pregunta
What is the primary purpose of AWS Glue in the context of a data lake?
Respuesta
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To store data redundantly across regions.
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To provide a SQL interface for querying raw data.
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To crawl unstructured data and define schemas.
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To optimize database queries for performance.
Pregunta 4
Pregunta
What tool allows SQL queries directly on data stored in Amazon S3?
Respuesta
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Amazon DynamoDB
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Amazon Athena
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Amazon ElasticSearch
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Amazon Lambda
Pregunta 5
Pregunta
How does Redshift Spectrum enhance the capabilities of Amazon Redshift?
Respuesta
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By integrating with Amazon Glue to create schemas.
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By querying data stored directly in Amazon S3.
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By offering serverless SQL querying capabilities.
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By storing all data in highly redundant clusters.
Pregunta 6
Pregunta
Why is partitioning data important in a data lake?
Respuesta
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To replicate data across regions for redundancy.
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To organize raw files into predefined schemas.
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To improve query performance by narrowing data access.
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To ensure compatibility with Amazon Glue.
Pregunta 7
Pregunta
What is a typical partitioning strategy for storing log data?
Respuesta
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Partitioning by file size.
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Partitioning by data source.
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Partitioning by date.
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Partitioning by user ID.
Pregunta 8
Pregunta
How should you approach data lake architecture from a system design perspective?
Respuesta
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Design the data lake structure based on how end-users will query the data.
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Store all data in a single bucket without structure to maximize flexibility.
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Focus exclusively on schema design before considering query patterns.
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Prioritize database migration over partitioning strategies.
Pregunta 9
Pregunta
What is one advantage of using off-the-shelf tools like AWS Glue and Amazon Athena?
Respuesta
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They allow complete control over low-level data management.
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They eliminate the need to think about data structure.
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They enable scalable and reliable big data solutions with minimal custom design.
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They prevent redundancy in cloud storage systems.
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