Exam 5

Question 1

What does the DelaySeconds parameter do?

Answer 1

It lets you postpone the delivery of new messages to a queue for a number of seconds, so they remain invisible to consumers for the duration of the delay period.

Question 2

How can you noticeably reduce your CodeBuild build time when the build has a lot of dependencies?

Answer 2

Enable S3 caching of dependencies

Question 3

If an application makes use of scan operations to return several items from a DynamoDB table, what option can we use to achieve faster response times

Answer 3

Use Parallel scans

Question 4

What are the Amazon Kinesis Data stream utilization limits for sending data?

Answer 4

10 MB per second

Question 5

If you are below the throughput utilizations for sending data in Kinesis Streams, but still get “ProvisionedThroughputException”, what could be the cause?

Answer 5

The partition key you have selected is not distributed enough

Question 6

In Cloudformation, what function do you use to use the exported value in another stack?

Answer 6

!ImportValue

Question 7

What does an LSI (Local Secondary Index do)?

Answer 7

It allows you to give your application a choice of sort keys

Question 8

What encryption mechanism will reject a request if the connection is not using HTTPS?

Answer 8

SSE-C

Question 9

How can you distribute, store and rotate credentials in a secure way?

Answer 9

Use an IAM instance Role

Question 10

What is the maximum number of messages that can be retrieved at one time?

Answer 10

10

Question 11

How many read capacity units (RCUs) are needed if you need to perform 10 strongly consistent reads per second of 4 KB in size each?

Answer 11

10:
One read capacity unit represents one strongly consistent read per second, or two eventually consistent reads per second, for an item up to 4 KB in size

Question 12

What is the maximum SQS message size?

Answer 12

256KB

Question 13

How can you ensure that decryption events can be audited and that secure strings be rotated?

Answer 13

Enable seamless encryption with KMS integration

Question 14

What Load Balancer allows you to get the user’s original source IP address and source port, without the use of X-Forwarded-For?

Answer 14

Network Load Balancer

Question 15

What command would you use to upload AWS Lambda functions and AWS CloudFormation templates to AWS?

Answer 15

cloudformation package and cloudformation deploy