Why DynamoDB exists - Quick Recap

Recall & Review

beginner

What problem does DynamoDB solve?

DynamoDB solves the problem of managing large amounts of data with high speed and scalability without needing to manage servers.

beginner

Why is DynamoDB called a NoSQL database?

Because it does not use traditional tables with fixed schemas like SQL databases, allowing flexible data models.

intermediate

How does DynamoDB handle scaling?

DynamoDB automatically adjusts capacity to handle more or fewer requests without manual intervention.

intermediate

What makes DynamoDB suitable for real-time applications?

It provides low latency and high throughput, so data can be read and written very quickly.

beginner

Why do developers prefer DynamoDB over traditional databases for cloud apps?

Because it is fully managed, scales automatically, and integrates well with other cloud services.

What type of database is DynamoDB?

A Time-series database

B NoSQL key-value and document database

C Graph database

D Relational SQL database

DynamoDB is a NoSQL database designed for key-value and document data models.

Why does DynamoDB exist?

A To provide a scalable, managed database for fast and flexible data storage

B To replace all SQL databases

C To store only images and videos

D To run only on local machines

DynamoDB was created to offer a scalable, managed database service that handles large data with speed and flexibility.

How does DynamoDB handle server management?

A It is fully managed by AWS, so users don't manage servers

B Users must manually configure servers

C It requires on-premise hardware

D It uses third-party server management tools

DynamoDB is a fully managed service, so AWS handles all server management.

Which feature helps DynamoDB scale automatically?

A Fixed storage limits

B Manual sharding

C Auto scaling capacity

D Scheduled downtime

DynamoDB automatically adjusts capacity to meet demand using auto scaling.

What kind of latency does DynamoDB provide?

A No latency because it is offline

B High latency for batch processing

C Variable latency depending on server load

D Low latency for fast data access

DynamoDB is designed for low latency to support real-time applications.

Explain in simple terms why DynamoDB was created and what problems it solves.

Think about handling lots of data quickly without managing servers.

Describe how DynamoDB differs from traditional SQL databases and why that matters.

Focus on data structure and ease of use in the cloud.