AWS Skills Assessment for Students

What is the maximum number of EBS volumes you can attach to a single EC2 instance?

• 24

• 28

• 16

• 10

How can you restrict an IAM user from accessing specific S3 buckets?

• Allow access to all S3 buckets by default.

• Create a policy that grants access to specific S3 buckets.

• Attach a policy that allows access to all resources.

• Create an IAM policy that denies access to specific S3 buckets and attach it to the user.

In DynamoDB, what is the purpose of a partition key?

• The partition key is a secondary index that speeds up queries.

• The partition key uniquely identifies each item in a table and determines its storage location.

• The partition key is a unique identifier for the entire database.

• The partition key is used to define the read capacity of a table.

What is the difference between a standard SNS topic and a FIFO SNS topic?

• Both standard and FIFO SNS topics guarantee exactly-once processing.

• A standard SNS topic is used for large-scale applications, whereas a FIFO SNS topic is for small-scale applications.

• A standard SNS topic guarantees ordered delivery, while a FIFO SNS topic does not.

• A standard SNS topic does not guarantee order or uniqueness, whereas a FIFO SNS topic guarantees ordered delivery and exactly-once processing.

How do you enable detailed monitoring for an EC2 instance?

• Enable detailed monitoring only through the AWS CLI.

• Detailed monitoring is automatically enabled for all instances.

• Enable detailed monitoring in the EC2 console during instance launch or modify an existing instance through the actions menu.

• You cannot modify monitoring settings after instance launch.

What IAM policy would you use to allow a user to only start and stop EC2 instances?

• {"Version":"2012-10-17","Statement":[{"Effect":"Deny","Action":["ec2:StartInstances","ec2:StopInstances"],"Resource":"*"}]}

• {"Version":"2012-10-17","Statement":[{"Effect":"Allow","Action":["ec2:StartInstances","ec2:StopInstances"],"Resource":"*"}]}

• {"Version":"2012-10-17","Statement":[{"Effect":"Allow","Action":["ec2:TerminateInstances"],"Resource":"*"}]}

• {"Version":"2012-10-17","Statement":[{"Effect":"Allow","Action":["ec2:DescribeInstances"],"Resource":"*"}]}

How can you model a one-to-many relationship in DynamoDB?

• Use a single table with a partition key for the 'one' side and a sort key for the 'many' side.

• Create a single table with no sort key.

• Use multiple tables for each entity type.

• Use a single table with a composite primary key for both sides.

What is the maximum message size for an SNS message?

• 1 MB

• 256 KB

• 128 KB

• 512 KB

How do you configure an SNS topic to send notifications to an SQS queue?

• Create an SQS queue and subscribe an SNS topic to it.

• Send notifications directly from an SQS queue without an SNS topic.

• Delete the SNS topic after creating it to avoid charges.

• Create an SNS topic and subscribe an SQS queue to it.

What steps would you take to troubleshoot an EC2 instance that is not reachable?

• Restart the instance and check the billing status.

• Change the instance type to a larger size.

• Check instance state, security groups, network ACLs, public IP, system logs, and SSH configuration.

• Disable all security groups and network ACLs.