Amazon Web Services Updated SAA-C03 Exam Questions and Answers by sufyan

https://docs.aws.amazon.com/autoscaling/ec2/userguide/as -add-availability-zone.html

This answer is correct because it allows the application to access Amazon S3 by using an IAM role that is associated with the ECS task. The task role grants permissions to the containers running in the task, and can be used to make AWS API calls from the application code. The taskRoleArn is a parameter in the task definition that specifies the IAM role to use for the task.

References:

• https://docs.aws.amazon.com/AmazonECS/latest/developerguide/task-iam-roles.html
• https://docs.aws.amazon.com/AmazonECS/latest/APIReference/API_TaskDefinition.html

AWS Backup is a fully managed service that allows you to centralize and automate data protection of AWS services across compute, storage, and database. AWS Backup Vault Lock is an optional feature of a backup vault that can help you enhance the security and control over your backup vaults. When a lock is active in Compliance mode and the grace time is over, the vault configuration cannot be altered or deleted by a customer, account/data owner, or AWS. This ensures that your backups are available for you until they reach the expiration of their retention periods and meet the regulatory requirements. References: https://docs.aws.amazon.com/aws-backup/latest/devguide/vaul t-lock.html

AWS Lambda is a serverless compute service that lets you run code without provisioning or managing servers. You can use Lambda to create and test microservices that are written in Python or other supported languages. Lambda scales automatically to handle the number of requests per second. You only pay for the compute time you consume. Lambda also integrates with other AWS services, such as Amazon API Gateway, Amazon S3, Amazon DynamoDB, and Amazon SQS, to enable event-driven architectures. Lambda has minimal infrastructure and operational overhead, as you do not need to manage servers, operating systems, patches, or scaling policies.

The other options are not serverless solutions and require more infrastructure and operational support. They also do not scale automatically to handle the number of requests per second. A Spot Fleet is a collection of EC2 instances that run on spare capacity at low prices. However, Spot Instances can be interrupted by AWS at any time, which can affect the availability and performance of your microservice. AWS Elastic Beanstalk is a service that automates the deployment and management of web applications on EC2 instances. However, you still need to provision, configure, and monitor the underlying EC2 instances and load balancers. Amazon EKS is a service that runs Kubernetes on AWS. However, you still need to create, configure, and manage the EC2 instances that form the Kubernetes cluster and nodes. You also need to install and update the Kubernetes software and tools.

References:

• What is AWS Lambda?
• Building Lambda functions with Python
• Create a layer for a Lambda Python function
• AWS Lambda – Function in Python
• How do I call my AWS Lambda function from a local python script?