AWS Certified Data Analytics Specialty 2021 – Hands-On - DynamoDB Basics - Hands-On

The video tutorial introduces Amazon DynamoDB, a serverless database service, focusing on creating tables and managing data. It covers setting up tables with partition and sort keys, customizing table settings, and understanding capacity modes. The tutorial also demonstrates adding items with unique keys, handling attributes, and creating multiple tables with advanced features like sort keys. The flexibility of DynamoDB in managing data without strict schema constraints is highlighted.

What is the primary focus when creating a table in DynamoDB?

• Creating tables and defining partition keys

• Setting up a server

• Defining a database

• Configuring network settings

Which table class is recommended for most use cases in DynamoDB?

• DynamoDB Standard

• DynamoDB Premium

• DynamoDB Basic

• DynamoDB Advanced

What is the main advantage of using provisioned capacity mode in DynamoDB?

• It is always cheaper

• It requires no configuration

• It allows for predictable performance

• It automatically scales with demand

Why must the partition key be unique when creating items in a DynamoDB table?

• To improve query performance

• To reduce storage costs

• To avoid duplicate entries

• To ensure data consistency

What happens if you try to add an item with a duplicate partition key in DynamoDB?

• The item is updated

• An error is thrown

• The item is ignored

• The table is locked

What is the purpose of a sort key in a DynamoDB table?

• To encrypt data

• To sort data within a partition

• To define a secondary index

• To partition data across regions

Why is it important to choose a good partition key in DynamoDB?

• To simplify table creation

• To increase storage capacity

• To ensure even data distribution

• To reduce query costs