Dynamo Flashcards
You have a motion sensor which writes 600 evenly spaced items of data every minute. Each item consists of 5kb. Your application use eventually consistent reads. What should you set the write throughput to?
20
30
50
10
50
You have a motion sensor which writes 600 items of data every minute. Each item consists of 5kb. What should you set the write throughput to?
20
10
40
50
50
You have an application that needs to read 25 items of 13kb in size per second. Your application uses strongly consistent reads. What should you set the read throughput to?
25
10
100
50
100
You have a motion sensor that reads 600 items of data every minute. Each item consists of 5kb. Your application uses strongly consistent reads. What should you set the read throughput to?
10
40
20
5
20
What does the error “ProvisionedThroughputExceededException” mean in DynamoDB?
The DynamoDB table has exceeded the allocated space.
The DynamoDB table is unavailable.
There is no such error message. The correct error message would be “ProvisionedThroughputFailureException”.
You exceeded your maximum allowed provisioned throughput for a table or for one or more global secondary indexes.
You exceeded your maximum allowed provisioned throughput for a table or for one or more global secondary indexes.
Using the AWS portal, you are trying to Scale DynamoDB past its preconfigured maximums. Which service can you increase by raising a ticket to AWS support?
Item Sizes
Provisioned throughput limits
Global Secondary Indexes
Local Secondary Indexes
Provisioned throughput limits
You have an application that needs to read 25 items of 13kb in size per second. Your application uses eventually consistent reads. What should you set the read throughput to?
100
25
50
10
50
DynamoDB is a No-SQL database provided by AWS.
True or False
True
What is the API call to retrieve multiple items from a DynamoDB table?
GetItems
BatchGet
BatchGetItems
BatchGetItem
BatchGetItem
In terms of performance, a scan is more efficient than a query.
True
False
False
