Free courses | Amazon Athena Courses with practice Q&A

Amazon Athena is a serverless, interactive query service offered by AWS that enables users to analyze data stored in Amazon S3 using standard SQL.

It simplifies the process of querying data in S3 without the need for setting up complex infrastructure or managing servers.

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Users can run ad-hoc queries on vast amounts of data in various formats such as CSV, JSON, Parquet, and more, directly from the AWS Management Console or through SQL clients.

One of its significant advantages lies in its cost-effectiveness, as users only pay for the queries they run, making it efficient for occasional or sporadic data analysis tasks.

Additionally, Athena’s compatibility with standard SQL makes it accessible to users with SQL querying skills, eliminating the need for learning new query languages or tools.

Its practical usage spans across different industries, facilitating quick and efficient data analysis, report generation, and deriving insights from large datasets stored in Amazon S3 without the overhead of managing infrastructure.

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This makes it a valuable tool for businesses seeking on-demand and cost-efficient querying capabilities for their data analysis needs.

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Here are 20 multiple-choice questions (MCQs) about Amazon Athena along with their answers:

Question: What is Amazon Athena primarily used for?

A) Real-time data processing
B) Querying data stored in Amazon S3
C) Creating data visualizations
D) Managing databases
Answer: B) Querying data stored in Amazon S3
Question: What type of service is Amazon Athena?

A) Database service
B) Analytics service
C) Serverless query service
D) Data storage service
Answer: C) Serverless query service
Question: What query language is used in Amazon Athena?

A) SQL
B) Python
C) Java
D) NoSQL
Answer: A) SQL
Question: Which AWS service does Amazon Athena primarily interact with for data storage?

A) Amazon S3
B) Amazon Redshift
C) Amazon RDS
D) Amazon DynamoDB
Answer: A) Amazon S3
Question: What is the billing model for Amazon Athena?

A) Pay-per-query
B) Monthly subscription
C) Pay-per-data size
D) Free usage tier
Answer: A) Pay-per-query

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Question: What is the role of Amazon Athena Workgroups?

A) Managing data backups
B) Grouping queries and setting query execution limits
C) Creating visualizations
D) Data encryption
Answer: B) Grouping queries and setting query execution limits
Question: Which file formats are supported by Amazon Athena for querying data stored in Amazon S3?

A) CSV and JSON
B) XML and HTML
C) Parquet and Avro
D) All of the above
Answer: D) All of the above
Question: What role does the AWS Glue Data Catalog play in Amazon Athena?

A) Data encryption
B) Data storage
C) Data query optimization
D) Data cataloging and metadata management
Answer: D) Data cataloging and metadata management
Question: How does Amazon Athena handle data scaling?

A) Requires manual scaling by users
B) Scales automatically based on data size
C) Has fixed scaling limits
D) Requires additional payment for scaling
Answer: B) Scales automatically based on data size
Question: What is the primary advantage of using Amazon Athena for data analysis?

A) Real-time data processing
B) Server provisioning
C) No infrastructure management required
D) Complex data transformations
Answer: C) No infrastructure management required
Question: Which AWS service can be used with Amazon Athena to schedule queries?

A) AWS Glue
B) AWS Lambda
C) Amazon CloudWatch Events
D) AWS Step Functions
Answer: C) Amazon CloudWatch Events

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Question: What is the maximum data size limit for a single query in Amazon Athena?

A) 5 GB
B) 10 GB
C) 15 TB
D) There is no limit
Answer: C) 15 TB
Question: What is the result of running a query in Amazon Athena that scans less data?

A) Higher query cost
B) Lower query cost
C) Longer query execution time
D) Requires manual scaling
Answer: B) Lower query cost
Question: What does AWS Glue do in conjunction with Amazon Athena?

A) Processes data in real-time
B) Creates data visualizations
C) Catalogs metadata for tables in Amazon S3
D) Manages data encryption
Answer: C) Catalogs metadata for tables in Amazon S3
Question: Which encryption option is available for securing data in Amazon Athena?

A) AES-128
B) RSA-2048
C) Amazon S3 encryption
D) AWS KMS encryption
Answer: D) AWS KMS encryption
Question: What is the file compression format supported by Amazon Athena?

A) GZIP
B) TAR
C) ZIP
D) RAR
Answer: A) GZIP

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Question: What is the query result output format in Amazon Athena?

A) CSV
B) JSON
C) Both CSV and JSON
D) HTML
Answer: C) Both CSV and JSON
Question: Which AWS service allows performance monitoring and query optimization for Amazon Athena?

A) AWS CloudTrail
B) AWS Trusted Advisor
C) Amazon CloudWatch
D) AWS X-Ray
Answer: C) Amazon CloudWatch
Question: What is the role of Workgroup settings in Amazon Athena?

A) Manages user access control
B) Controls query result output format
C) Sets query execution limits and costs
D) Automates data backups
Answer: C) Sets query execution limits and costs

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Question: Which Amazon Athena feature enables managing and tracking query history?

A) Workgroups
B) Data Catalog
C) Query Editor
D) Query Execution History
Answer: D) Query Execution History