Recent questions in AWS

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But while doing so, you get a 412 error for PreconditionFailedException. What can you do to debug and resolve the error?

asked Oct 13, 2024 in AWS by DavidAnderson

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What is the most secure and less-costly way to store this information?

asked Oct 13, 2024 in AWS by DavidAnderson

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your customers complain that not all data is delivered to them. Which Lambda CloudWatch metric should you look at first to resolve this problem?

asked Oct 13, 2024 in AWS by DavidAnderson

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1 answer

You have many Lambda functions that read data from the AWS Kinesis stream. Your colleague informs you that our application has too many Lambda function invocations, increasing latency for your application.

asked Oct 13, 2024 in AWS by DavidAnderson

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1 answer

After debugging, you discover that the Lambda functions don't have permissions to access records from the DynamoDB table. How will you resolve this issue using more tighter and secure AWS Managed Policy?

asked Oct 13, 2024 in AWS by DavidAnderson

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1 answer

After 10 minutes, all traffic is shifted to your deployment. What deployment preference type will meet this requirement?

asked Oct 13, 2024 in AWS by DavidAnderson

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1 answer

You have a SAM template used to deploy a Lambda function, and you are now working to create a new version. Your manager has asked you to instantly switch traffic once you have built and tested your version.

asked Oct 13, 2024 in AWS by DavidAnderson

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1 answer

On querying DynamoDB, you realize all 500 user's information is saved successfully. But CloudWatch shows failed invocations for the second function. How will you address the bottleneck in the least possible time?

asked Oct 13, 2024 in AWS by DavidAnderson

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1 answer

Your lead has asked you to work on a new module in which you need to query a DynamoDB table with multiple Partition Key values at once and store the result in CSV format on S3

asked Oct 13, 2024 in AWS by DavidAnderson

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1 answer

You are working as a Senior Software Developer for a large pharmaceutical company.

asked Oct 9, 2024 in AWS by DavidAnderson

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1 answer

You are working on a new reporting feature for which you need to query a DynamoDB table, and the attributes you need to query upon are not set as Partition Key and Sort Key. What is the best way to solve this problem?

asked Oct 9, 2024 in AWS by DavidAnderson

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1 answer

You have been asked to design a serverless web application with DynamoDB as its database. The client wants to record each and every change in data in DynamoDB and store it individually as a file on S3.

asked Oct 9, 2024 in AWS by DavidAnderson

0 votes

1 answer

You have been asked to troubleshoot a serverless application that is occasionally throwing errors while storing payment transaction details. The application is using DynamoDB as its database.

asked Oct 9, 2024 in AWS by DavidAnderson

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1 answer

You have been hired as a Database administrator by a start-up. Your first task is to modify a DynamoDB table so that its data expires automatically after a certain period of time.

asked Oct 9, 2024 in AWS by DavidAnderson

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1 answer

Your manager has assigned you a task to write an API that will extract data from a DynamoDB table with 30 columns and more than 10,000 rows of open data. Not all the columns are relevant for your use-case.

asked Oct 9, 2024 in AWS by DavidAnderson

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1 answer

One of your clients has a web application hosted on-prem and has recently migrated its database service to DynamoDB. The application receives more than 1000 read requests per second compared to 200 write requests every second.

asked Oct 9, 2024 in AWS by DavidAnderson

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1 answer

How many RCUs does the application need to fulfill all the requests?

asked Oct 9, 2024 in AWS by DavidAnderson

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1 answer

You are developing a gaming application that needs to write 100 items every second. Each item is of 2KB containing session data and game data. How many WCUs do you need to provision for your table?

asked Oct 9, 2024 in AWS by DavidAnderson

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1 answer

You want to read 420 items of 5KB each from a DynamoDB table every minute using strong consistency read.

asked Oct 9, 2024 in AWS by DavidAnderson

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1 answer

Your security Chief Officer has asked you to implement a solution to send an email alert every time someone logged in the AWS console or AWS Cli with the Administrator Role.

asked Oct 6, 2024 in AWS by DavidAnderson

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1 answer

You and your team have a productive REST API with API Gateway and Lambda as backend. You want to make some code improvements to this API without making disruptions to your customers.

asked Oct 6, 2024 in AWS by DavidAnderson

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1 answer

There are two conditions: Do not let the developers pass the Administrator role to EC2. The credentials for the role must last a maximum of 45 minutes. How could you achieve this?

asked Oct 6, 2024 in AWS by DavidAnderson

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1 answer

You are developing an application that is using AWS Lambda. A Lambda function is placed in a private subnet which does not have access to internet. This Lambda function will receive bank account information as a JSON object.

asked Oct 6, 2024 in AWS by DavidAnderson

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1 answer

Which of the next options could you use as MFA in Cognito?

asked Oct 6, 2024 in AWS by DavidAnderson

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1 answer

Which of these options is NOT a true advantage of Kinesis over SQS?

asked Oct 6, 2024 in AWS by DavidAnderson

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1 answer

You have a data stream of 4.5 MB of throughput and 4600 PUT records per second, how many shards will you need in Amazon Kinesis to process this data stream?

asked Oct 6, 2024 in AWS by DavidAnderson

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1 answer

You have a serverless application with AWS Lambda. This application has Lambda as a backend and has its data stored in DynamoDB. This application is very latency-sensitive.

asked Oct 6, 2024 in AWS by DavidAnderson

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1 answer

You are developing a Lambda in your Dev1 account, the purpose of this Lambda is to save QR codes in two S3 buckets, one bucket (BucketDev1) is in the same account as the Lambda and the second bucket (BucketDev2) is in other AWS account called Dev2

asked Oct 6, 2024 in AWS by DavidAnderson

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1 answer

You have exceeded your maximum allowed provisioned throughput for a table in DynamoDB. Which of the following approaches are correct to fix this problem?

asked Oct 6, 2024 in AWS by DavidAnderson

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1 answer

A company has a set of APIs and a web application. They want to deploy it to AWS. They don't want to manage the underlying infrastructure. Which of the following services can help to accomplish this?

asked Oct 5, 2024 in AWS by DavidAnderson

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