Dynamo DB

Question 1

What is DynamoDB?

Answer 1

A cloud native database. It can handle large volumes of records and transactions, without provisioning resources upfront.

Question 2

True or false. DynamoDB supports encryption at rest?

Answer 2

True

Question 3

True or false. DynamoDB can be tan locally?

Answer 3

True.

Question 4

How does DynamoDB ensure resilience by default?

Answer 4

By partioning and replicating data across multiple AZs.

Question 5

What does changing the provisioned through out of your DynamoDB do?

Answer 5

Increases or decreases partioning.

Question 6

What does a global DynamoDB table do?

Answer 6

Allows regional replication.

Question 7

Global DynamoDB tables. How long does replication take.

Answer 7

Sub second.

Question 8

Is DynamoDB syncing synchronous or asynchronous?

Answer 8

Synchronous.

Question 9

What are DynamoDB on demand backups?

Answer 9

What they sound like. Traditional backup and restores.

Question 10

What does PITR mean?

Answer 10

Point in time recovery

Question 11

What does PITR do in DynamoDB

Answer 11

Allow you to restore to any second in the last 35 days.

Question 12

What is DAX?

Answer 12

DynamoDB Accellerator

Question 13

What does DAX mean?

Answer 13

Dynamo DB performance accelerator.

Question 14

True or false. Regardless of the size of a database, DynamoDB performance will remain consistent?

Answer 14

True

Question 15

DynamoDB. What does RCU mean?

Answer 15

Read capacity unit

Question 16

DynamoDB. What is WCU

Answer 16

Wrote capacity unit

Question 17

What is a DynamoDB stream?

Answer 17

A log of time ordered, item level modifications to a DynamoDB table. That can be consumed by other applications.

Question 18

Are DynamoDB streams real time?

Answer 18

Yes

Question 19

Are DynamoDB streams encrypted at rest?

Answer 19

Yes