Exam AWS-SysOps topic 1 question 693 discussion

I give my answer to A after long research AMI ID are unique across regions even with AMI we share. https://stackoverflow.com/questions/26727401/how-to-find-the-same-spec-ami-in-different-regions Lambda can call upon services in another region https://stackoverflow.com/questions/31714788/can-an-aws-lambda-function-call-another

A is the right answer, since AMI IDs are unique across regions. B - You can pass region parameter in the lambda function to launch the EC2 in a different region.

When you update the region name in the Lambda function to launch an EC2 instance in a different region, you need to ensure that the AMI ID specified in the Lambda function is valid for the new region.

A is the answer AMI should be updated according to the region

A as per below lambda can run across region https://stackoverflow.com/questions/48250426/invoke-an-aws-lambda-across-regions

A. The AMI ID must be updated for the us-west-1 region in the Lambda function as well Seem correct

My answer is A. Keyword here "when the region name was updated in the Lambda function to launch an EC2 instance in the us-west-1 region, it failed". Region named was updated and only left AMI ID to be updated in Lambda

A: only answer with Keyword AMI

I'll go with A

A - it would seem that they are not asking about Lambda but rather about the AMI. And AMI ID's are not the same across regions

Code like this will be used in lambda and it is clear that it is problem of AMI ID. import boto3 region = 'us-west-1' instances = ['i-12345cb6de4f78g9h', 'i-08ce9b2d7eccf6d26'] ec2 = boto3.client('ec2', region_name=region) def lambda_handler(event, context): ec2.start_instances(InstanceIds=instances) print('started your instances: ' + str(instances))

A - it would seem that they are not asking about Lambda but rather about the AMI. And AMI ID's are not the same across regions

lambda is a regional service

Answer C clearly mentioned in the blog https://www.bluepiit.com/blog/how-to-automate-copying-an-ec2-amis-from-one-aws-region-to-another-cleanup-using-aws-lambda/ e region. In this blog-post, by keeping above points in mind, let us take you through the steps involved in automating the copying of AMI to a different region and tag those with the retention date and clean up them based on the retention expiration date (if needed) using AWS Lambda. The process generally comprises the following steps: Setup IAM Permissions. Create Lambda Copy AMI across Region Function. Create Lambda Cleanup Copied AMI Function. Schedule Functions.

B seems to be correct

Ans is A

Ans is B: Lambda function is regions specific and they are trying to use us-east lambda function to launch in West which is not possible