SOA-C02 (Page 22)

An application is running on an Amazon EC2 instance in a VPC with the default DHCP option set.The application connects to an on-premises Microsoft SQLServer database with the DNS name mssql.example.com.The application is unable to resolve the database DNS name.Which solution will fix this problem?Read More →

A company has an application that uses an Amazon RDS for MariaDB Multi-AZ database.The application becomes unavailable for several minutes every time the database experiences a failover during a planned maintenance event.What should a SysOps administrator do to reduce the downtime of the application during failover?Read More →

A SysOps administrator has set up a new Amazon EC2 instance as a web server in a public subnet.The instance uses HTTP port 80 and HTTPS port 443.The SysOps administrator has confirmed internet connectivity by downloading operating system updates and software from public repositories.However, the SysOps administrator cannot access the instance from a web browser on the internet.Which combination of steps should the SysOps administrator take to troubleshoot this issue? (Choose three.)Read More →

A company is deploying an ecommerce application to an AWS Region that is located in France.The company wants users from only France to be able to access the first version of the application.The company plans to add more countries for the next version of the application.A SysOps administrator needs to configure the routing policy in Amazon Route 53.Which solution will meet these requirements?Read More →

A SysOps administrator has an AWS CloudFormation template of the company’s existing infrastructure in us-west-2.The administrator attempts to use the template to launch a new stack in eu-west-1, but the stack only partially deploys, receives an error message, and then rolls back.Why would this template fail to deploy? (Choose two.)Read More →

A company hosts a production MySQL database on an Amazon Aurora single-node DB cluster.The database is queried heavily for reporting purposes.The DB cluster is experiencing periods of performance degradation because of high CPU utilization and maximum connections errors.A SysOps administrator needs to improve the stability of the database.Which solution will meet these requirements?Read More →

A company runs an application on Amazon EC2 instances that are in an Amazon EC2 Auto Scaling group.Scale-out actions take a long time to become complete because of long-running boot scripts.A SysOps administrator must implement a solution to reduce the required time for scale-out actions without overprovisioning the Auto Scaling group.Which solution will meet these requirements?Read More →

A company analyzes sales data for its customers.Customers upload files to one of the company’s Amazon S3 buckets, and a message is posted to an AmazonSimple Queue Service (Amazon SQS) queue that contains the object Amazon Resource Name (ARN).An application that runs on an Amazon EC2 instance polls the queue and processes the messages.The processing time depends on the size of the file.Customers are reporting delays in the processing of their files.A SysOps administrator decides to configure Amazon EC2 Auto Scaling as the first step.TheSysOps administrator creates an Amazon Machine Image (AMI) that is based on the existing EC2 instance.The SysOps administrator also creates a launch template that references the AMI.How should the SysOps administrator configure the Auto Scaling policy to improve the response time?Read More →

A company has two VPC networks named VPC A and VPC B.The VPC A CIDR block is 10.0.0.0/16 and the VPC B CIDR block is 172.31.0.0/16.The company wants to establish a VPC peering connection named pcx-12345 between both VPCs.Which rules should appear in the route table of VPC A after configuration? (Choose two.)Read More →

A company hosts a static website on Amazon S3.An Amazon CloudFront distribution presents this site to global users.The company uses the Managed-CachingDisabled CloudFront cache policy.The company’s developers confirm that they frequently update a file in Amazon S3 with new information.Users report that the website presents correct information when the website first loads the file.However, the users’ browsers do not retrieve the updated file after a refresh.What should a SysOps administrator recommend to fix this issue?Read More →