A company uses Amazon Simple Email Service (SES) to cost-effectively send susbscription emails to the customers. Intermittently, the SES service throws the error: Throttling – Maximum sending rate exceeded.
As a developer associate, which of the following would you recommend to fix this issue? Use Exponential Backoff technique to introduce delay in time before attempting to execute the operation again Configure Timeout mechanism for each request made to the SES service Raise a service request with Amazon to increase the throttling limit for the SES API Implement retry mechanism for all 4xx errors to avoid throttling error .
The development team at an e-commerce company completed the last deployment for their application at a reduced capacity because of the deployment policy.
The application took a performance hit because of the traffic spike due to an on-going sale.
Which of the following represents the BEST deployment option for the upcoming application version such that it maintains at least the FULL capacity of the application and MINIMAL impact of failed deployment? Deploy the new application version using 'Immutable' deployment policy Deploy the new application version using 'All at once' deployment policy Deploy the new application version using 'Rolling' deployment policy Deploy the new application version using 'Rolling with additional batch' deployment policy.
Your company has embraced cloud-native microservices architectures.
New applications must be dockerized and stored in a registry service offered by AWS.
The architecture should support dynamic port mapping and support multiple tasks from a single service on the same container instance.
All services should run on the same EC2 instance.
Which of the following options offers the best-fit solution for the given use-case? Application Load Balancer + ECS Classic Load Balancer + Beanstalk Application Load Balancer + Beanstalk Classic Load Balancer + ECS.
A data analytics company is processing real-time Internet-of-Things (IoT) data via Kinesis Producer Library (KPL) and sending the data to a Kinesis Data Streams driven application.
The application has halted data processing because of a ProvisionedThroughputExceeded exception.
Which of the following actions would help in addressing this issue? (Select two) Configure the data producer to retry with an exponential backoff Increase the number of shards within your data streams to provide enough capacity Use Amazon Kinesis Agent instead of Kinesis Producer Library (KPL) for sending data to Kinesis Data Streams Use Amazon SQS instead of Kinesis Data Streams Use Kinesis enhanced fan-out for Kinesis Data Streams.
Signing AWS API requests helps AWS identify an authentic user from a potential threat.
As a developer associate, which of the following would you identify as the use-case where you need to sign the API requests? When you send HTTP requests to an AWS service When you send anonymous requests to Amazon Simple Storage Service (Amazon S3) When you use the AWS Command Line Interface (AWS CLI) to run commands on an AWS resource When you use one of the AWS SDKs to make requests to AWS resources/services.
After a code review, a developer has been asked to make his publicly accessible S3 buckets private, and enable access to objects with a time-bound constraint.
Which of the following options will address the given use-case? Share pre-signed URLs with resources that need access Use Bucket policy to block the unintended access Use Routing policies to re-route unintended access It is not possible to implement time constraints on Amazon S3 Bucket access.
A company runs its flagship application on a fleet of Amazon EC2 instances.
After misplacing a couple of private keys from the SSH key pairs, they have decided to re-use their SSH key pairs for the different instances across AWS Regions.
As a Developer Associate, which of the following would you recommend to address this use-case? Generate a public SSH key from a private SSH key. Then, import the key into each of your AWS Regions It is not possible to reuse SSH key pairs across AWS Regions Store the public and private SSH key pair in AWS Trusted Advisor and access it across AWS Regions Encrypt the private SSH key and store it in the S3 bucket to be accessed from any AWS Region.
While troubleshooting, a developer realized that the Amazon EC2 instance is unable to connect to the Internet using the Internet Gateway.
Which conditions should be met for Internet connectivity to be established? (Select two) The network ACLs associated with the subnet must have rules to allow inbound and outbound traffic The route table in the instance’s subnet should have a route to an Internet Gateway The instance's subnet is not associated with any route table The instance's subnet is associated with multiple route tables with conflicting configurations The subnet has been configured to be Public and has no access to internet.
A developer needs to automate software package deployment to both Amazon EC2 instances and virtual servers running on-premises, as part of continuous integration and delivery that the business has adopted.
Which AWS service should he use to accomplish this task? AWS CodeDeploy AWS CodePipeline AWS CodeBuild AWS Elastic Beanstalk.
While defining a business workflow as state machine on AWS Step Functions, a developer has configured several states.
Which of the following would you identify as the state that represents a single unit of work performed by a state machine? "HelloWorld": {
"Type": "Task",
"Resource": "arn:aws:lambda:us-east-1:123456789012:function:HelloFunction",
"Next": "AfterHelloWorldState",
"Comment": "Run the HelloWorld Lambda function"
} "No-op": {
"Type": "Task",
"Result": {
"x-datum": 0.381018,
"y-datum": 622.2269926397355
},
"ResultPath": "$.coords",
"Next": "End"
} "FailState": {
"Type": "Fail",
"Cause": "Invalid response.",
"Error": "ErrorA"
}.
As a Developer, you are given a document written in YAML that represents the architecture of a serverless application.
The first line of the document contains:
Transform: 'AWS::Serverless-2016-10-31'.
What does the Transform section in the document represent? Presence of Transform section indicates it is a Serverless Application Model (SAM) template It represents a Lambda function definition It represents an intrinsic function Presence of 'Transform' section indicates it is a CloudFormation Parameter .
The development team at an analytics company is using SQS queues for decoupling the various components of application architecture.
As the consumers need additional time to process SQS messages, the development team wants to POSTPONE the delivery of new messages to the queue for a few seconds.
As a Developer Associate, which of the following solutions would you recommend to the development team? Use delay queues to postpone the delivery of new messages to the queue for a few seconds Use FIFO queues to postpone the delivery of new messages to the queue for a few seconds Use dead-letter queues to postpone the delivery of new messages to the queue for a few seconds Use visibility timeout to postpone the delivery of new messages to the queue for a few seconds.
The technology team at an investment bank uses DynamoDB to facilitate high-frequency trading where multiple trades can try and update an item at the same time.
Which of the following actions would make sure that only the last updated value of any item is used in the application? Use ConsistentRead = true while doing GetItem operation for any item Use ConsistentRead = true while doing UpdateItem operation for any item Use ConsistentRead = true while doing PutItem operation for any item Use ConsistentRead = false while doing PutItem operation for any item.
An Auto Scaling group has a maximum capacity of 3, a current capacity of 2, and a scaling policy that adds 3 instances.
When executing this scaling policy, what is the expected outcome? Amazon EC2 Auto Scaling adds only 1 instance to the group Amazon EC2 Auto Scaling adds 3 instances to the group Amazon EC2 Auto Scaling adds 3 instances to the group and scales down 2 of those instances eventually Amazon EC2 Auto Scaling does not add any instances to the group, but suggests changing the scaling policy to add one instance.
A developer working with EC2 Windows instance has installed Kinesis Agent for Windows to stream JSON-formatted log files to Amazon Simple Storage Service (S3) via Amazon Kinesis Data Firehose.
The developer wants to understand the sink type capabilities of Kinesis Firehose.
Which of the following sink types is NOT supported by Kinesis Firehose. Amazon ElastiCache with Amazon S3 as backup Amazon Elasticsearch Service (Amazon ES) with optionally backing up data to Amazon S3 Amazon Simple Storage Service (Amazon S3) as a direct Firehose destination Amazon Redshift with Amazon S3.
|
