A company has a web application for travel ticketing. The application is based on a database that runs in a single data center in North America. The company wants to expand the application to serve a global user base. The company needs to display the application to multiple AWS Regions. Average latency must be less than 1 second on updates to reservation database.
The company wants to have separate deployments of its web platform across multiple Regions.
However, the company must maintain a single primary reservation database that is globally consistent.
Which solution should a solutions architect recommend to meet these requirements?

• A.Migrate the application to an Amazon Aurora Severless database. Deploy instances of the database to each Region. Use the correct Region endpoint in each Regional deployment to access the database. Use AWS Lambda functions to process event streams in each Region to synchronize the databases.
• B.Convert the application to use Amazon DynamoDB. Use a global table for the center reservation table.
  Use the correct Regional endpoint in each Regional deployment.
• C.Migrate the database to an Amazon Aurora MySQL database. Deploy Aurora Read Replicas in each Region. Use the correct Region endpoint in each Regional deployment for access to the database.
• D.Migrate the database to an Amazon RDS for MySQL database. Deploy MySQL read replicas in each Region. Use the correct Regional endpoint In each Regional deployment for access to the database.

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An application generates audit logs of operational activities. Compliance requirements mandate that the application retain the logs for 5 years.
How can these requirements be met?

• A.Save the logs in an Amazon S3 bucket and enable Multi-Factor Authentication Delete (MFA Delete) on the bucket.
• B.Save the logs in an Amazon EFS volume and use Network File System version 4 (NFSv4) locking with the volume.
• C.Save the logs in an Amazon Glacier vault and use the Vault Lock feature.
• D.Save the logs in an Amazon EBS volume and take monthly snapshots.

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Your manager has just given you access to multiple VPN connections that someone else has recently set up between all your company's offices. She needs you to make sure that the communication between the VPNs is secure. Which of the following services would be best for providing a low-cost hub-and-spoke model for primary or backup connectivity between these remote offices?

• A.Amazon CloudFront
• B.AWS Direct Connect
• C.AWS CloudHSM
• D.AWS VPN CloudHub

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You are using an m1.small EC2 instance with one 300GB EBS volume to host a relational database. You determined that write throughput to the database needs to be increased.
Which of the following approaches can help achieve this? Choose 2 answers

• A.Increase the size of the EC2 instance
• B.Add an EBS volume and place into RAID 5
• C.Place the instance in an Auto Scaling Group
• D.Use an array of EBS volumes
• E.Enable multi-AZ mode
• F.Put the database behind an Elastic Load Balancer

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What does the following command do with respect to the Amazon EC2 security groups?
ec2-create-group CreateSecurityGroup

• A.Creates a new rule inside the security group.
• B.Creates a new security group for use with your account.
• C.Groups the user created security groups in to a new group for easy access.
• D.Creates a new group inside the security group.

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