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AWS Certified Developer - Associate Questions and Answers (Dumps and Practice Questions)



Question : What if you exceed the GB limit for an item collection
: What if you exceed the GB limit for an item collection
1. you will not be able to write new items
2. you will not be able to increase the size of existing items
3. you will not be able to decrease the size of existing items
4. 1 and 2
5. 1,2 and 3


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Explanation: If a particular item collection exceeds the 10GB limit, then you will not be able to write new items, or increase the size of existing items, for that particular hash key. Read and write operations that shrink the size of the item collection are still allowed. Other item collections in the table are not affected.

To address this problem , you can remove items or reduce item sizes in the collection that has exceeded 10GB. Alternatively, you can introduce new items under a new hash key value to work around this problem. If your table includes historical data that is infrequently accessed, consider archiving the historical data to Amazon S3, Amazon Glacier or another data store.




Question : Your application utilizes Amazon S reduced redundancy storage and you have configured
the s3:ReducedRedundancyLostObject notification on your Amazon S3 Bucket. What services might you use
to create a "distributed" platform that replaces lost RRS objects on Amazon S3 automatically?

: Your application utilizes Amazon S reduced redundancy storage and you have configured
1. SNS with a website subscription endpoint as the worker instance
2. SNS with an SMS subscription endpoint
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4. SNS with subscription endpoints

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Exp: The s3:ReducedRedundancyLostObject can send a notification to a specified SNS topic. Using that topic and SQS as a subscription end point allowing the lost object message to wait inside of a queue until a worker instance retrieves the message from the queue and recreates the original object that was lost.





Question : What all is/are the advantage of using Amazon SQS?

: What all is/are the advantage of using Amazon SQS?
1. SQS allows time-critical messages to be sent through a push mechanism eliminating the need to poll for data
2. SQS is used by distributed applications and can be used to decouple sending and receiving components without requiring each application component to be concurrently available
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4. None of the above

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Explanation: Amazon Simple Queue Service (SQS) is a fast, reliable, scalable, fully managed message queuing service. SQS makes it simple and cost-effective to decouple the components of a cloud application. You can use SQS to transmit any volume of data, at any level of throughput, without losing messages or requiring other services to be always available.

With SQS, you can offload the administrative burden of operating and scaling a highly available messaging cluster, while paying a low price for only what you use.

Using Amazon SQS provides several advantages over building your own software for managing message queues or using a commercial or open-source message queuing system. The alternatives require significant upfront time to develop and configure compared to integrating with an existing web service. Also, these alternatives require ongoing hardware and system administrative resources to operate. The complexity of configuring and managing these systems is compounded if they need to be configured to provide redundant storage of messages so messages are not lost if hardware fails. By contrast, Amazon SQS requires no administrative overhead and little configuration.


Related Questions

Question : Elastic Load Balancing uses what technologies?

1. DNS
2. Route 53
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4. RDS

: Elastic Load Balancing uses what technologies?
1. 1,2
2. 2,3
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4. 1,4


Question : Being a good solutions architect means you will always plan for failures in your AWS cloud environment.

 : Being a good solutions architect means you will always plan for failures in your AWS cloud environment.
1. True
2. False




Question : All operations on elastic IP addresses can be performed programmatically through the API, or manually from the AWS Management Console
 : All operations on elastic IP addresses can be performed programmatically through the API, or manually from the AWS Management Console
1. True
2. False


Question : If a message is retrieved from a queue in Amazon SQS, how long is the message inaccessible to other users by default?
 : If a message is retrieved from a queue in Amazon SQS, how long is the message inaccessible to other users by default?
1. 0 seconds
2. 1 hour
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4. forever
5. 30 seconds


Question : You have multiple instances behind private and public subnets. None of the instances have an EIP assigned to them.
How can you connect them to the internet to download system updates?

 : You have multiple instances behind private and public subnets. None of the instances have an EIP assigned to them.
1. Assign EIP to each instance
2. Create a NAT instance
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4. Connect to a VPN


Question : What is an effective method to mitigate this?
 : What is an effective method to mitigate this?
1. Store photos on an EBS volume of the web server
2. Remove public read access and use signed URLs with expiry dates.
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4. Block the IPs of the offending websites in Security Groups.