AWS Certified Data Analytics Specialty 2021 – Hands-On - Redshift Integration / WLM / Vacuum / Anti-Patterns

The video tutorial covers Amazon Redshift's integration with Amazon S3 for data import/export, workload management using WLM, and concurrency scaling to handle increased query loads. It explains the differences between automatic and manual workload management, the use of short query acceleration, and the VACUUM command for data maintenance. The tutorial also highlights anti-patterns to avoid when using Redshift, emphasizing its strengths in handling large-scale analytic queries.

Which AWS service can be used to automate data movement and transformation in and out of Redshift tables?

• AWS Data Pipeline

• AWS CodeDeploy

• AWS Lambda

• AWS CloudFormation

Which command is used to load data from a single Amazon DynamoDB table into Redshift?

• COPY

• LOAD

• EXPORT

• INSERT

What is the primary purpose of Redshift Workload Management (WLM)?

• To manage data storage

• To prioritize workloads and manage query queues

• To enhance security

• To automate backups

What feature allows Redshift to automatically add cluster capacity for handling sudden increases in concurrent read queries?

• Concurrency Scaling

• Auto Scaling

• Elastic Load Balancing

• Data Replication

How many different queues can be defined in Automatic Workload Management?

• 8

• 10

• 12

• 5

What is the default concurrency level for a manual workload management queue?

• 50

• 10

• 5

• 1

What is the purpose of Short Query Acceleration (SQA) in Redshift?

• To enhance data security

• To prioritize long-running queries

• To increase storage capacity

• To accelerate short-running queries

Which VACUUM command re-sorts all rows and reclaims space from deleted rows?

• VACUUM DELETE ONLY

• VACUUM SORT ONLY

• VACUUM FULL

• VACUUM REINDEX

What is an anti-pattern for using Redshift?

• Using it for OLAP queries

• Using it for small data sets

• Using it for data warehousing

• Using it with structured data

Which of the following is NOT a type of VACUUM command in Redshift?

• VACUUM DELETE ONLY

• VACUUM FULL

• VACUUM PARTIAL

• VACUUM SORT ONLY