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Question 76 Selectable Answer

A company is planning to migrate an Amazon RDS for Oracle database to an RDS for PostgreSQL DB instance in another AWS account A solutions architect needs to design a migration strategy that will require no downtime and that will minimize the amount of time necessary to complete the migration. The migration strategy must replicate all existing data and any new data that is created during the migration. The target database must be identical to the source database at completion of the migration process
All applications currently use an Amazon Route 53 CNAME record as their endpoint for communication with the RDS for Oracle DB instance. The RDS for Oracle DB instance is in a private subnet
Which combination of steps should the solutions architect take to meet these requirements? (Select THREE)

A. Create a new RDS for PostgreSQL DB instance in the target account Use the AWS Schema Conversion Tool (AWS SCT) to migrate the database schema from the source database to the target database.
B. Use the AWS Schema Conversion Tool (AWS SCT) to create a new RDS for PostgreSQL DB instance in the target account with the schema and initial data from the source database
C. Configure VPC peering between the VPCs in the two AWS accounts to provide connectivity to both DB instances from the target account. Configure the security groups that are attached to each DB instance to allow traffic on the database port from the VPC in the target account
D. Temporarily allow the source DB instance to be publicly accessible to provide connectivity from the VPC in the target account Configure the security groups that are attached to each DB instance to allow traffic on the database port from the VPC in the target account.
E. Use AWS Database Migration Service (AWS DMS) in the target account to perform a full load plus change data capture (CDC) migration from the source database to the target database When the migration is complete, change the CNAME record to point to the target DB instance endpoint
F. Use AWS Database Migration Service (AWS DMS) in the target account to perform a change data capture (CDC) migration from the source database to the target database When the migration is complete change the CNAME record to point to the target DB instance endpoint

Answer:
Explanation:
https://docs.aws.amazon.com/dms/latest/userguide/CHAP_Task.CDC.html

Question 77 Selectable Answer

A company is currently using AWS CodeCommit for its source control and AWS CodePipeline for continuous integration. The pipeline has a build stage for building the artifacts, which is then staged in an Amazon S3 bucket.
The company has identified various improvement opportunities in the existing process and a solutions architect has been given the following requirements
• Create a new pipeline to support feature development
• Support feature development without impacting production applications
• Incorporate continuous testing with unit tests
• Isolate development and production artifacts
• Support the capability to merge tested code into production code
How should the solutions architect achieve these requirements?

A. Trigger a separate pipeline from CodeCommit feature branches Use AWS CodeBuild for running unit tests Use CodeBuild to stage the artifacts within an S3 bucket in a separate testing account
B. Trigger a separate pipeline from CodeCommit feature branches Use AWS Lambda for running unit tests Use AWS CodeDeploy to stage the artifacts within an S3 bucket in a separate testing account
C. Trigger a separate pipeline from CodeCommit tags Use Jenkins for running unit tests Create a stage in the pipeline with S3 as the target for staging the artifacts within an S3 bucket in a separate testing account.
D. Create a separate CodeCommit repository for feature development and use it to trigger the pipeline Use AWS Lambda for running unit tests Use AWS CodeBuild to stage the artifacts within different S3 buckets in the same production account

Answer:

Question 78 Selectable Answer

A company's site reliability engineer is performing a review of Amazon FSx for Windows File Server deployments within an account that the company acquired Company policy states that all Amazon FSx file systems must be configured to be highly available across Availability Zones.
During the review, the site reliability engineer discovers that one of the Amazon FSx file systems used a deployment type of Single-AZ 2 A solutions architect needs to minimize downtime while aligning this Amazon FSx file system with company policy.
What should the solutions architect do to meet these requirements?

A. Reconfigure the deployment type to Multi-AZ for this Amazon FSx tile system
B. Create a new Amazon FSx fie system with a deployment type o( Multi-A
C. Use AWS DataSync to transfer data to the new Amazon FSx file system. Point users to the new location
D. Create a second Amazon FSx file system with a deployment type of Single-AZ 2. Use AWS DataSync to keep the data n sync. Switch users to the second Amazon FSx fie system in the event of failure
E. Use the AWS Management Console to take a backup of the Amazon FSx He system Create a new Amazon FSx file system with a deployment type of Multi-AZ Restore the backup to the new Amazon FSx file system. Point users to the new location.

Answer:

Question 79 Selectable Answer

A software company hosts an application on AWS with resources in multiple AWS accounts and Regions. The application runs on a group of Amazon EC2 instances in an application VPC located in the us-east-1 Region with an IPv4 CIDR block of 10.10.0.0/16. In a different AWS account, a shared services VPC is located in the us-east-2 Region with an IPv4 CIDR block of 10.10.10.0/24. When a cloud engineer uses AWS CloudFormation to attempt to peer the application
VPC with the shared services VPC, an error message indicates a peering failure.
Which factors could cause this error? (Choose two.)

A. The IPv4 CIDR ranges of the two VPCs overlap
B. The VPCs are not in the same Region
C. One or both accounts do not have access to an Internet gateway
D. One of the VPCs was not shared through AWS Resource Access Manager
E. The IAM role in the peer accepter account does not have the correct permissions

Answer:
Explanation:
https://aws.amazon.com/about-aws/whats-new/2017/11/announcing-support-for-inter-region-vpc-peering/

Question 80 Selectable Answer

A solutions architect is designing the data storage and retrieval architecture for a new application that a company will be launching soon. The application is designed to ingest millions of small records per minute from devices all around the world. Each record is less than 4 KB in size and needs to be stored in a durable location where it can be retrieved with low latency. The data is ephemeral and the company is required to store the data for 120 days only, after which the data can be deleted.
The solutions architect calculates that, during the course of a year, the storage requirements would be about 10-15 TB.
Which storage strategy is the MOST cost-effective and meets the design requirements?

A. Design the application to store each incoming record as a single .csv file in an Amazon S3 bucket to allow for indexed retrieval. Configure a lifecycle policy to delete data older than 120 days.
B. Design the application to store each incoming record in an Amazon DynamoDB table properly configured for the scale. Configure the DynamoOB Time to Live (TTL) feature to delete records older than 120 days.
C. Design the application to store each incoming record in a single table in an Amazon RDS MySQL database. Run a nightly cron job that executes a query to delete any records older than 120 days.
D. Design the application to batch incoming records before writing them to an Amazon S3 bucket. Update the metadata for the object to contain the list of records in the batch and use the Amazon S3 metadata search feature to retrieve the data. Configure a lifecycle policy to delete the data after 120 days.

Answer:
Explanation:
DynamoDB with TTL, cheaper for sustained throughput of small items + suited for fast retrievals. S3 cheaper for storage only, much higher costs with writes. RDS not designed for this use case.

Question 81 Selectable Answer

A retail company is running an application that stores invoice files in an Amazon S3 bucket and metadata about the files in an Amazon DynamoDB table. The application software runs in both us-east-1 and eu-west-1. The S3 bucket and DynamoDB table are in us-east-1. The company wants to protect itself from data corruption and loss of connectivity to either Region
Which option meets these requirements?

A. Create a DynamoDB global table to replicate data between us-east-1 and eu-west-1. Enable continuous backup on the DynamoDB table in us-east-1. Enable versioning on the S3 bucket
B. Create an AWS Lambda function triggered by Amazon CloudWatch Events to make regular backups of the DynamoDB table Set up S3 cross-region replication from us-east-1 to eu-west-1 Set up MFA delete on the S3 bucket in us-east-1.
C. Create a DynamoDB global table to replicate data between us-east-1 and eu-west-1. Enable versioning on the S3 bucket Implement strict ACLs on the S3 bucket
D. Create a DynamoDB global table to replicate data between us-east-1 and eu-west-1. Enable continuous backup on the DynamoDB table in us-east-1. Set up S3 cross-region replication from us-east-1 to eu-west-1.

Answer:

Question 82 Selectable Answer

A finance company hosts a data lake in Amazon S3. The company receives financial data records over SFTP each night from several third parties. The company runs its own SFTP server on an Amazon EC2 instance in a public subnet of a VPC. After the files ate uploaded, they are moved to the data lake by a cron job that runs on the same instance. The SFTP server is reachable on DNS sftp.examWe.com through the use of Amazon Route 53.
What should a solutions architect do to improve the reliability and scalability of the SFTP solution?

A. Move the EC2 instance into an Auto Scaling group. Place the EC2 instance behind an Application Load Balancer (ALB). Update the DNS record sftp.example.com in Route 53 to point to the AL
B. Migrate the SFTP server to AWS Transfer for SFT
C. Update the DNS record sftp.example.com in Route 53 to point to the server endpoint hostname.
D. Migrate the SFTP server to a file gateway in AWS Storage Gateway. Update the DNS record sflp.example.com in Route 53 to point to the file gateway endpoint.
E. Place the EC2 instance behind a Network Load Balancer (NLB). Update the DNS record sftp.example.com in Route 53 to point to the NL

Answer:
Explanation:
https://aws.amazon.com/aws-transfer-family/faqs/ https://docs.aws.amazon.com/transfer/latest/userguide/what-is-aws-transfer-family.html
https://aws.amazon.com/about-aws/whats-new/2018/11/aws-transfer-for-sftp-fully-managed-sftp-for-s3/?nc1=h_ls

Question 83 Selectable Answer

A company is using a lift-and-shift strategy to migrate applications from several on-premises Windows servers to AWS. The Windows servers will be hosted on Amazon EC2 instances in the us-east-1 Region.
The company's security policy allows the installation of migration tools on servers. The migration data must be encrypted in transit and encrypted at rest. The applications are business critical. The company needs to minimize the cutover window and minimize the downtime that results from the migration. The company wants to use Amazon CloudWatch and AWS CloudTrail for monitoring.
Which solution will meet these requirements?

A. Use AWS Application Migration Service (CloudEnsure Migration) to migrate the Windows servers to AW
B. Create a Replication Settings template. Install the AWS Replication Agent on the source servers
C. Use AWS DataSync to migrate the Windows servers to AW
D. Install the DataSync agent on the source servers. Configure a blueprint for the target servers. Begin the replication process.
E. Use AWS Server Migration Service (AWS SMS) to migrate the Windows servers to AW
F. Install the SMS Connector on the source servers. Replicate the source servers to AW
G. Convert the replicated volumes to AMIs to launch EC2 instances.
H. Use AWS Migration Hub to migrate the Windows servers to AW
I. Create a project in Migration Hub. Track the progress of server migration by using the built-in dashboard.

Answer:

Question 84 Selectable Answer

A large company has a business-critical application that runs in a single AWS Region. The application consists of multiple Amazon EC2 instances and an Amazon RDS Multi-AZ DB instance. The EC2 instances run In an Amazon EC2 Auto Scaling group across multiple Availability Zones
A solutions architect is implementing a disaster recovery (DR) plan for the application. The solutions architect has created a pilot light application deployment in a new Region, which is referred to as the DR Region. The DR environment has an Auto Scaling group with a single EC2 instance and a read replica of the RDS DB instance
The solutions architect must automate a failover from the primary application environment to the pilot light environment in the DR Region
Which solution meets these requirements with the MOST operational efficiency''

A. Publish an application availability metric to Amazon CloudWatch in the DR Region from the application environment in the primary Region Create a CloudWatch alarm in the DR Region that is invoked when the application availability metric stops being delivered Configure the CloudWatch alarm to send a notification to an Amazon Simple Notification Service (Amazon SNS> topic in the DR Region Add an email subscription to the SNS topic that sends messages to the application owner upon notification, instruct a systems operator to sign in to the AWS Management Console and initiate failover operations for the application
B. Create a cron task that runs every 5 minutes by using one of the application's EC2 instances in the primary Region Configure the cron task to check whether the application is available Upon failure, the cron task notifies a systems operator and attempts to restart the application services
C. Create a cron task that runs every 5 minutes by using one of the application's EC2 instances in the primary Region Configure the cron task to check whether the application is available Upon failure, the cron task modifies the DR environment by promoting the read replica and by adding EC2 instances to the Auto Scaling group
D. Publish an application availability metric to Amazon CloudWatch in the DR Region from the application environment in the primary Region Create a CloudWatch alarm in the DR Region that is invoked when the application availability metric stops being delivered Configure the CloudWatch alarm to send a notification to an Amazon Simple Notification Service (Amazon SNS) topic in the DR Region Use an AWS Lambda function that is invoked by Amazon SNS in the DR Region to promote the read replica and to add EC2 instances to the Auto Scaling group

Answer:

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