AWS-Certified-Developer-Associate Free Practice Test

In relation to Amazon SQS, how many queues and messages can you have per queue for each user?

1. A. Unlimited
2. B. 10
3. C. 256
4. D. 500

Correct Answer: A
Amazon SQS supports an unlimited number of queues and unlimited number of messages per queue for each user. Please be aware that Amazon SQS automatically deletes messages that have been in the queue for more than 4 days.
Reference: https://aws.amazon.com/items/1343?externaIID=1343

In regard to DynamoDB, can I modify the index once it is created?

1. A. Yes, if it is a primary hash key index
2. B. Yes, if it is a Global secondary index
3. C. No
4. D. Yes, if it is a local secondary index

Correct Answer: C
Currently, in DynamoDB, an index cannot be modified once it is created. Reference: http://aws.amazon.com/dynamodb/faqs/#security_anchor

An application stores payroll information nightly in DynamoDB for a large number of employees across hundreds of offices. Item attributes consist of indMdual name, office identifier, and cumulative daily hours. Managers run reports for ranges of names working in their office. One query is. "Return all Items in this office for names starting with A through E". Which table configuration will result in the lowest impact on provisioned throughput for this query?

1. A. Configure the table to have a hash index on the name attribute, and a range index on the office identifier
2. B. Configure the table to have a range index on the name attribute, and a hash index on the office identifier
3. C. Configure a hash index on the name attribute and no range index
4. D. Configure a hash index on the office Identifier attribute and no range index

Correct Answer: B

Which code snippet below returns the URL of a load balanced web site created in CIoudFormation with an AWS::EIasticLoadBaIancing::LoadBaIancer resource name "EIasticLoad BaIancer"?

1. A. "Fn::Join" : [ '‘'‘ . ["http://", {"Fn::GetAtr" : ["EIasticLoadBalancer","DNSName"]}]]
2. B. "Fn::Join" : [ '‘'‘ . ["http://", {"Fn::GetAtr" : ["E|asticLoadBa|ancer","Ur|"]}]]
3. C. "Fn::Join" : [ '‘'‘ . ["http://", {"Ref" : "EIasticLoadBaIancerUr|"}]]
4. D. "Fn::Join" : ["http://", {"Ref" : "EIasticLoadBaIancerDNSName"}]]

Correct Answer: B

How long are the messages kept on an SQS queue by default?

1. A. If a message is not read, it is never deleted
2. B. 2 weeks
3. C. 1 day
4. D. 4 days

Correct Answer: D
The SQS message retention period is configurable and can be set anywhere from 1 minute to 2 weeks. The default is 4 days and once the message retention limit is reached your messages will be automatically deleted. The option for longer message retention provides greater filexibility to allow for longer intervals between message production and consumption.
Reference: https://aws.amazon.com/sqs/faqs/