1. Your company plans to expand its on-premises data center with the AWS Cloud (hybrid cloud). Which AWS component allow you to establish a dedicated connection between your on-premises network and AWS?

A) Internet Gateway
B) AWS Direct Connect
C) Amazon Route 53
D) VPC Peering



2. As a Cloud Developer, you plan to deploy application that can have spikes in user numbers on weekends. Which AWS service helps you adjust capacity to maintain steady, predictable performance of your application?

A) AWS ElastiCache
B) AWS Auto Scaling
C) Amazon Elastic Load Balancing
D) AWS Elastic Beanstalk



3. As a Data Engineer, you want to use a NoSQL key-value database to run your application. You've chosen DynamoDB and you want to optimize your workflow using indexes. Select all true statements about indexes in DynamoDB. (select 3)(Select 3answers)

A) You can have only one clustered index per table.
B) You can have a table without an index.
C) You can have more than one non-clustered index on a table.
D) You can have more than one global secondary index on a table.
E) You can have more than one local secondary index on a table.


4. Your application is running on Amazon EC2 instances. You want to track the number of 404 errors that users encounter in the application. Which of the following option should you use?

A) You should use CloudWatch Logs to get the web server logs from EC2 instances.
B) You should use VPC Flow Logs.
C) You are unable to track the 404 error for applications running on Amazon EC2.
D) You should use CloudWatch metrics.



5. Which VPC component helps you control inbound and outbound traffic for Amazon EC2 instances?

A) Network access control list (ACL)
B) Subnet
C) Internet gateway
D) Security group