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AWS Data Engineering Online Test

Topics Covered

  • Architecture
  • Migration
  • Storage
  • Troubleshooting
  • Disaster Recovery
  • Data Storage

Useful for hiring

  • AWS Data Engineer
  • Data Engineer
  • Data Engineer - Amazon Devices
  • Data Infrastructure Engineer

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Question

You're working on a data archival solution to store log data from an application. It's absolutely critical that no data is lost, and it needs to be immediately accessible when it is infrequently demanded with overall costs minimized. What storage option is the best solution?

Answer
    • Amazon S3 Standard

    • Amazon S3 Standard-Infrequent Access

    • Amazon S3 One Zone-Infrequent Access

    • Amazon Glacier

Question

Your team has migrated the corporate data warehouse to Redshift, and so far all the data coming into the ETL pipeline for the data warehouse has been from other corporate systems also running on AWS. However, A new third party will be securely sending files directly to S3, and the data in these files need to be ingested into S3 elsewhere. What are the most efficient and best-automated way to introduce this change into the ETL pipeline?

Note: There can be multiple correct answers to this question.

Answer
    • Use AWS Redshift Database Loader on Lambda

    • Use cron jobs on EC2 instances to execute batch jobs

    • Use Data Pipeline

    • Use SWF to create a workflow to process the data

Question

You're working on a real-time data analytics project where unknown amounts of presumably large data will need to be ingested as close to instantaneously as possible. You'll likely need to archive this data later into other AWS products as well, so which of the following products is/are the best options to consider?

Note: There can be multiple correct answers to this question.

Answer
    • SQS

    • Kinesis Streams

    • Kinesis Firehose

    • EC2

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