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NEW QUESTION 20 There is a requirement for an application hosted on a VPC to access the On-premise LDAP server. The VPC and the On-premise location are connected via an I PSec VPN. Which of the below are the right options for the application to authenticate each user. Choose 2 answers from the options below

• A. The application authenticates against LDAP and retrieves the name of an 1AM role associated with the user. The application then calls the 1AM Security Token Service to assume that 1AM role. The application can use the temporary credentials to access any AWS resources.
• B. Develop an identity broker that authenticates against 1AM security Token service to assume a 1AM role in order to get temporary AWS security credentials The application calls the identity broker to get AWS temporary security credentials.
• C. The application authenticates against LDAP the application then calls the AWS identity and Access Management (1AM) Security service to log in to 1AM using the LDAP credentials the application can use the 1AM temporary credentials to access the appropriate AWS service.
• D. Develop an identity broker that authenticates against LDAP and then calls 1AM Security Token Service to get 1AM federated user credentials. The application calls the identity broker to get 1AM federated user credentials with access to the appropriate AWS service.

Answer: A,D Explanation: Explanation When you have the need for an in-premise environment to work with a cloud environment, you would normally have 2 artefacts for authentication purposes * An identity store - So this is the on-premise store such as Active Directory which stores all the information for the user's and the groups they below to. * An identity broker - This is used as an intermediate agent between the on-premise location and the cloud environment. In Windows you have a system known as Active Directory Federation services to provide this facility. Hence in the above case, you need to have an identity broker which can work with the identity store and the Security Token service in aws. An example diagram of how this works from the aws documentation is given below. For more information on federated access, please visit the below link: * http://docs.aws.amazon.com/IAM/latest/UserGuide/idrolescommon-scenarios_federated-users.htm * I   NEW QUESTION 21 You have an I/O and network-intensive application running on multiple Amazon EC2 instances that cannot handle a large ongoing increase in traffic. The Amazon EC2 instances are using two Amazon EBS PIOPS volumes each, and each instance is identical. Which of the following approaches should be taken in order to reduce load on the instances with the least disruption to the application?

• A. Createan AMI from an instance, and set up an Auto Scaling group with an instance typethat has enhanced networking enabled and is Amazon EBS-optimized.
• B. Addan Amazon EBS volume for each running Amazon EC2 instance and implement RAIDstripingto improve I/O performance.
• C. Addan instance-store volume for each running Amazon EC2 instance and implementRAID striping to improve I/O performance.
• D. Createan AMI from each instance, and set up Auto Scaling groups with a largerinstance type that has enhanced networking enabled and is Amazon EBS-optimized.
• E. Stopeach instance and change each instance to a larger Amazon EC2 instance typethat has enhanced networking enabled and is Amazon EBS-optimized. Ensure thatRAID striping is also set up on each instance.

Answer: A Explanation: Explanation The AWS Documentation mentions the following on AMI's An Amazon Machine Image (AMI) provides the information required to launch an instance, which is a virtual server in the cloud. You specify an AM I when you launch an instance, and you can launch as many instances from the AMI as you need. You can also launch instances from as many different AMIs as you need. For more information on AMI's, please visit the link: * http://docs.aws.amazon.com/AWSCC2/latest/UserGuide/AMIs.html   NEW QUESTION 22 A DevOps Engineer administers an application that manages video files for a video production company. The application runs on Amazon EC2 instances behind an ELB Application Load Balancer. The instances run in an Auto Scaling group across multiple Availability Zones. Data is stored in an Amazon RDS PostgreSOL Multi-AZ DB instance, and the video ides are stored in an Amazon S3 bucket. On a typical day 50 GB of new video are added to the S3 bucket. The Engineer must implement a multi-region disaster recovery plan with the least data loss and the lowest recovery times. The current application infrastructure is already described using AWS CloudFormation. Which deployment option should the Engineer choose to meet the uptime and recovery objectives for the system?

• A. Launch the application from the CloudFormation template in the second region which sets the capacity of the Auto Scaling group to 1. Use Amazon CloudWatch Events to schedule a nightly task to take a snapshot of the database, copy the snapshot to the second region, and replace the DB instance in the second region from the snapshot. In the second region, enable cross-region replication between the original S3 bucket and a new S3 bucket. To fail over, increase the capacity of the Auto Scaling group.
• B. Launch the application from the CloudFormation template in the second region, which sets the capacity of the Auto Scaling group to 1. Create an Amazon RDS read replica in the second region. In the second region, enable cross-region replication between the original S3 bucket and a new S3 bucket. To fail over, promote the read replica as master. Update the CloudFormation stack and increase the capacity of the Auto Scaling group.
• C. Use Amazon CloudWatch Events to schedule a nightly task to take a snapshot of the database and copy the snapshot to the second region. Create an AWS Lambda function that copies each object to a new S3 bucket in the second region in response to S3 event notifications. In the second region, launch the application from the CloudFormation template and restore the database from the most recent snapshot.
• D. Launch the application from the CloudFormation template in the second region, witch sets the capacity of the Auto Scaling group to 1. Create a scheduled task to take daily Amazon RDS cross-region snapshots to the second region. In the second region, enable cross-region replication between the original S3 bucket and Amazon Glacier. In a disaster, launch a new application stack in the second region and restore the database from the most recent snapshot.

Answer: B   NEW QUESTION 23 A healthcare provider has a hybrid architecture that includes 120 on-premises VMware servers running RedHat and 50 Amazon EC2 instances running Amazon Linux. The company is in the middle of an all-in migration to AWS and wants to implement a solution for collecting information from the on-premises virtual machines and the EC2 instances for data analysis. The information includes: - Operating system type and version - Data for installed applications - Network configuration information, such as MAC and IP addresses - Amazon EC2 instance AMI ID and IAM profile How can these requirements be met with the LEAST amount of administration?

• A. Install AWS Systems Manager agents on both the on-premises virtual machines and the EC2 instances. Enable inventory collection and configure resource data sync to an Amazon S3 bucket to analyze the data with Amazon Athena.
• B. Use a script on the on-premises virtual machines as well as the EC2 instances to gather and push the data into Amazon S3, and then use Amazon Athena for analytics.
• C. Write a shell script to run as a cron job on EC2 instances to collect and push the data to Amazon S3. For on-premises resources, use VMware vSphere to collect the data and write it into a file gateway for storing the data in S3. Finally, use Amazon Athena on the S3 bucket tor analytics.
• D. Use AWS Application Discovery Service for deploying Agentless Discovery Connector in the VMware environment and Discovery Agents on the EC2 instances for collecting the data. Then use the AWS Migration Hub Dashboard for analytics.

Answer: A   NEW QUESTION 24 A company updated the AWS CloudFormation template tor a critical business application. The stack update process Tailed due to an error in me updated template, and CloudFormation automatically began the stack rollback process Later, a DevOps engineer found the application was still unavailable, and that the stack was in the UPDATEROLLBACKFALED state Which combination of actions will allow the stack rollback to complete successful/? (Select TWO)

• A. Automatically heal the stack resources using CloudFormation drift detection.
• B. Update the existing CloudFormation stack using the original template
• C. Manually the resources to match the expectations of the stack.
• D. Attach the AWSCloudFormationFulAccess IAM policy to the CloudFormation role
• E. Issue a ContinueUpdateRolback command from the CloudFormation console or AWS CLI

Answer: B,E   NEW QUESTION 25 ......