AWS Certified Solutions Architect Associate (SAA-C03) - DynamoDB

The video tutorial covers DynamoDB, a NoSQL database service by AWS, highlighting its unique features like millisecond latency and scalability. It explains the difference between NoSQL and relational databases, and the importance of understanding read consistency types. Practical applications, such as mobile apps and online stores, demonstrate DynamoDB's capabilities. The tutorial also discusses pricing models and emphasizes the significance of DynamoDB, Aurora, and Redshift for AWS exams.

What type of database is DynamoDB classified as?

• Flat file database

• NoSQL database

• Data warehouse

• Relational database

What is a key feature of DynamoDB that allows it to handle millions of users efficiently?

• Limited scalability

• Use of traditional hard drives

• Millisecond latency at any scale

• Single server storage

Which consistency type in DynamoDB ensures synchronization within milliseconds?

• Eventual consistent reads

• Strongly consistent reads

• Delayed consistent reads

• Immediate consistent reads

How does DynamoDB benefit mobile applications?

• By providing large data storage

• By increasing battery life

• By offering fast read and write operations

• By reducing app size

What is the starting cost for storage in DynamoDB per GB per month?

• $0.10

• $0.50

• $1.00

• $0.25

How is write throughput billed in DynamoDB?

• Per second for every 50 units

• Per day for every 20 units

• Per hour for every 10 units

• Per minute for every 5 units

What should you use to estimate the cost of using DynamoDB?

• Guesswork

• AWS Pricing Calculator

• Manual calculations

• Third-party software