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Question - 1

Regarding the AWS Elastic Beanstalk, if the environment health is grey, __________________.

  • The environment is still in the process of being launched
  • The environment is ready but it should be activated by logged In user.
  • The environment is active and ready to use.
  • The environment is terminated and application should be reinstalled.
Solutions
Question - 2

A user is creating multiple IAM users. What advice should be given to him to enhance the security?

  • Grant more privileges to the user, but least privileges to the group
  • Grant least privileges to the individual user
  • Grant less privileges for user, but higher privileges for the group
  • Grant all higher privileges to the group
Solutions
Question - 3

A user is running a webserver on EC2. The user wants to receive the SMS when the EC2 instance utilization is above the threshold limit. Which AWS services should the user configure in this case?

  • AWS EC2 and AWS Cloudwatch.
  • AWS CloudWatch and AWS SQS.
  • AWS CloudWatch and AWS SES.
  • AWS CloudWatch and AWS SNS.
Solutions
Question - 4

John is an architect and he has developed an application which is required to send the data to a NoSQL database. John now wants to decouple the data sending such that the application keeps processing and sending data but does not wait for an acknowledgement of DB. Which of the below mentioned applications helps in this scenario?

  • AWS Simple Queue Service
  • AWS Simple Query Service
  • AWS Simple Notification Service
  • AWS Simple Workflow
Solutions
Question - 5

A cloud developer has created a MySQL RDS instance with PIOPS. Which of the below mentioned statements will help the developer to understand the advantage of PIOPS?

  • It uses a standard EBS volume with optimized configuration the stacks
  • It uses optimized EBS volumes and optimized configuration stacks
  • The user can achieve additional dedicated capacity for the EBS I/O with an enhanced RDS option
  • It provides a dedicated network bandwidth between EBS and RDS
Solutions
Question - 6

Your friend is planning to use the AWS RDS with MySQL. Which of the below mentioned services is he not going to pay for?

  • Data storage
  • RDS Cloudwatch metric
  • I/O requests per month
  • Data transfer
Solutions
Question - 7

A Lambda-based application consists of several functions. Once triggered, these functions will call various downstream resources such as a DynamoDB table or an S3 bucket, or make other API calls. How can be achived by the developer to trace the event source that invoked your Lambda functions and trace the downstream calls that your functions made.

  • AWS X-Ray and Amazon CloudWatch
  • AWS CloudTrail
  • AWS Systems Manager
  • Amazon Inspector
Solutions
Question - 8

A developer uses AWS SAM templates to deploy a serverless application. He needs to embed the application from the AWS Serverless Application Repository or from an S3 bucket as a nested application. Which of the following will be suitable to achived this.

  • AWS::Serverless::Application
  • AWS::Serverless::Function
  • AWS::Serverless::LayerVersion
  • AWS::Serverless::Api
Solutions
Question - 9

A Lambda function has been integrated with DynamoDB Streams as its event source. There has been a new version of the function that needs to be deployed using CodeDeploy where the traffic must be shifted in two increments. It should shift 10 percent of the incoming traffic to the new version in the first increment and then the remaining 90 percent should be deployed five minutes later.Which of the following deployment configurations is the MOST suitable to satisfy this requirement?

  • Rolling with additional batch
  • All-at-once
  • Canary
  • Linear
Solutions
Question - 10

You have a private S3 bucket that stores application logs and the bucket contents are accessible to all members of the Developer IAM group. However, you want to make an object inside the bucket which should only be accessible to the members of Admin IAM group.  How can you apply an S3 bucket policy to this object using AWS CLI?

  • put-bucket-policy --policy
  • put-bucket-policy --permission
  • put-bucket-policy--grants
  • None of the above
Solutions
Question - 11

A serverless application is composed of several Lambda functions which reads data from RDS. These functions must share the same connection string that should be encrypted to improve data security.  Which of the following is the way to meet the above requirement?

  • Create a Secure String Parameter using the AWS Systems Manager Parameter Store.
  • Use AWS Lambda environment variables encrypted with KMS which will be shared by the Lambda functions.
  • Use AWS Lambda environment variables encrypted with CloudHSM.
  • Create an IAM Execution Role that has access to RDS and attach it to the Lambda functions.
Solutions
Question - 12

You are building a distributed system using KMS where you need to encrypt data and decrypt data for application. Which of the below option is suitable KMS API that the system should use to securely implement the requirements?

  • GenerateDataKeyWithoutPlaintext
  • GenerateRandom
  • Encrypt
  • GenerateDataKey
Solutions
Question - 13

Suppose you have an application and which built in Node.js with Database SQL. which is hosted in Elastic Beanstalk, in order to properly trace the calls via the X-Ray console.What should you do to comply with the given requirement?

  • Enable active tracing in the Elastic Beanstalk console.
  • Use a user data script to run the daemon automatically.
  • Create a Docker image that runs the X-Ray daemon.
  • Enable the X-Ray daemon by including the xray-daemon.config configuration file in the .ebextensions directory of your source code.
Solutions
Question - 14

A application which has a MySQL RDS database, becomes unresponsive from time to time. You were instructed to collect all SQL statements that took longer to execute for troubleshooting. What is the proper way to get all these reports for troubleshooting.

  • Enable slow query log in RDS.
  • Instrument your application using the X-Ray SDK.
  • Enable active tracing using AWS X-Ray.
  • Use Amazon Inspector to get all the slow queries.
Solutions
Question - 15

A developer has deployed a Lambda function which will run in various environments such as DEV, TEST, UAT, and PROD. As part of its processing, the function also calls a set of external API services which varies based on the environment. The function must use different endpoints for these external services to properly complete the processing. Which of the following features in Lambda would be appropriate external endpoint for each environment?

  • Environment Variables
  • Stage Variables
  • Aliases
  • Layers
Solutions
Question - 16

A developer is building an e-commerce application which will be hosted in an ECS Cluster. To minimize the number of instances in use, which of the following task placement strategy on the least available amount of CPU or memory.

  • random
  • spread
  • distinctInstance
  • binpack
Solutions
Question - 17

A DynamoDB table has several top-level attributes such as id, employee_id, department_name, salary, performance and etc. The database queries of your application returns all of the item attributes by default but you only want to fetch specific attributes such as the employee_id and salary per request. As the developer, how can you refactor your application to accomplish this requirement?

  • Use expression attribute names
  • Use filter expressions
  • Use condition expressions
  • Use projection expression
Solutions
Question - 18

A developer configured an Amazon API Gateway proxy integration to work with a Lambda function. However, when the API is being called, the developer receives a 502 Bad Gateway error. He tried invoking the underlying function but it properly returns the result in XML format.What is the likely root cause of this issue?

  • There is an incompatible output returned from a Lambda proxy integration backend.
  • There has been an occasional out-of-order invocation due to heavy loads.
  • The endpoint request timed-out.
  • The API name of the Amazon API Gateway proxy is invalid.
Solutions
Question - 19

A developer is planning to deploy a high-performance online trading application which requires a database that can scale globally and can handle frequent schema changes. The database should also support flexible schemas that enable faster and more iterative development. Which is the suitable database service that you should use to achieve this?

  • DynamoDB
  • Redshift
  • RDS
  • Aurora
Solutions
Question - 20

An application hosted in a multicontainer Docker platform in Elastic Beanstalk uses DynamoDB to handle the session data of its users. These data are only used in a particular timeframe and the stale data can be deleted after the user logged out of the system. which of the following way to delete the session data?

  • Use conditional writes to add the session data to the DynamoDB table and then automatically delete it based on the condition you specify.
  • Enable TTL for the session data in the DynamoDB table.
  • Use atomic counter to track the validity of the session data and delete once it becomes stale.
  • Delete the stale data by regularly performing a scan on the table.
Solutions
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