AWS Data Analytics – Specialty Quiz-2

11) In your project,data delivery from your Kinesis Firehose delivery stream to the destination is falling behind. When this happens, you need to manually change the buffer size to catch up and ensure that the data is delivered to the destination.
True
False

Correct Answer: False

12) True or False: With both local secondary indexes and global secondary indexes, you can define read capacity units and write capacity units on the index itself — so that you don’t have to consume them from the base table.
False
True

Correct Answer: False

13) Which of the following must be defined when you create a table? (Choose 4)
The table capacity, number of GB.
The RCU (Read Capacity Units)
The WCU (Write Capacity Units)
The DCU (Delete/Update Capacity Units)
Partition Key
The Table Name

Correct Answer: The RCU (Read Capacity Units).
The WCU (Write Capacity Units).
The Table Name.

14) Which of the following attribute data types can be table or item keys? (Choose 3)
Number
Blob
Map
Binary
String

Correct Answer: Number.
Binary.
String.

15) Which of the following statements is true?
A shard supports up to 1000 transactions per second for reads, and 5 transactions per second for writes.
A shard supports up to 5 transactions per second for reads, and 1000 records per second for writes.
A shard supports up to 5 transactions per second for reads, and 10 records per second for writes.

Correct Answer: A shard supports up to 5 transactions per second for reads, and 1000 records per second for writes.

16) In terms of data write-rate for data input, what is the capacity of a shard in a Kinesis stream?
4 MB/s
1 MB/s
2 MB/s

Correct Answer: 1 MB/s

17) In terms of data read-rate for data output, what is the capacity of a shard in a Kinesis stream?
1 MB/s
2 MB/s
4 MB/s

Correct Answer: 2 MB/s

18) The application takes data from logs on EC2 instances and ingests the data into Streams records. Which of the following solutions did the developer use to improve throughput when implementing the KPL with the application?
Aggregation
Re-Aggregation
De-Aggregation

Correct Answer: Aggregation

19) True or False: You can add a local secondary index to a DynamoDB table after it has been created.
False
True

Correct Answer: False

20) What are the max deliverables from one Dynamo DB Partition.
4,000 WCU, 1,000RCU, 10GB Data volume
No maximums
1,000 WCU, 3,000RCU, 10GB Data volume

Correct Answer: 1,000 WCU,
3,000RCU,
10GB Data volume