SOA-C02 — questions

A company hosts a continuous integration and continuous delivery (CI/CD) environment on AWS. The CI/CD environment includes a Jenkins server that is hosted on an Amazon EC2 instance. A 500 GB General Purpose SSD (gp2) Amazon Elastic Block Store (Amazon EBS) volume is attached to the EC2 instance. Because of disk throughput limitations, the Jenkins server reports performance issues that are resulting in slower builds on the server. The EBS volume needs to sustain 3,000 IOPS while performing nightly build tasks. A SysOps administrator examines the server's history in Amazon CloudWatch. The BurstBalance metric has had a value of 0 during nightly builds. The SysOps administrator needs to improve the performance and meet the sustained throughput requirements. Which solution will meet these requirements MOST cost-effectively?

A company is running an application on a group of Amazon EC2 instances behind an Application Load Balancer. The EC2 instances run across three Availability Zones. The company needs to provide the customers with a maximum of two static IP addresses for their applications. How should a SysOps administrator meet these requirement?

A SysOps administrator receives an alert that a production Auto Scaling group has been scaled down to two Amazon EC2 instances. The Auto Scaling group was originally configured with a minimum capacity of three instances. However, the SysOps administrator confirms that the configuration now reflects a minimum capacity of two instances. Which AWS service will help identify who made the change?

A company wants to store sensitive financial data within Amazon S3 buckets. The company has a corporate policy that does not allow public read or write access to the buckets. A SysOps administrator must create a solution to automatically remove S3 permissions that allow public read or write access. Which AWS service should the SysOps administrator use to meet these requirements in the MOST operationally efficient manner?

A SysOps administrator must create an IAM policy for a developer who needs access to specific AWS services. Based on the requirements, the SysOps administrator creates the following policy: Which actions does this policy allow? (Choose two.)

A SysOps administrator is re-architecting an application. The SysOps administrator has moved the database from a public subnet, where the database used a public endpoint, into a private subnet to restrict access from the public network. After this change, an AWS Lambda function that requires read access to the database cannot connect to the database. The SysOps administrator must resolve this issue without compromising security. Which solution meets these requirements?

Users are reporting consistent forced logouts from a stateful web application. The logouts occur before the expiration of a 15-minute application logout timer. The web application is hosted on Amazon EC2 instances that are in an Auto Scaling group. The instances run behind an Application Load Balancer (ALB) that has a single target group. The ALB is configured as the origin in an Amazon CloudFront distribution. Session affinity (sticky sessions) is already enabled on the ALB target group and uses duration-based cookies. The web application generates its own application cookie. Which combination of actions should a SysOps administrator take to resolve the logout problem? (Choose two.)

A company's social media application has strict data residency requirements. The company wants to use Amazon Route 53 to provide the application with DNS services. A SysOps administrator must implement a solution that routes requests to a defined list of AWS Regions. The routing must be based on the user's location. Which solution will meet these requirements?

A company has a cluster of Linux Amazon EC2 Spot Instances that read many files from and write many files to attached Amazon Elastic Block Store (Amazon EBS) volumes. The EC2 instances are frequently started and stopped. As part of the process when an EC2 instance starts, an EBS volume is restored from a snapshot. EBS volumes that are restored from snapshots are experiencing initial performance that is lower than expected. The company's workload needs almost all the provisioned IOPS on the attached EBS volumes. The EC2 instances are unable to support the workload when the performance of the EBS volumes is too low. A SysOps administrator must implement a solution to ensure that the EBS volumes provide the expected performance when they are restored from snapshots. Which solution will meet these requirements?

A company recently deployed an application in production. The production environment currently runs on a single Amazon EC2 instance that hosts the application's web application and a MariaDB database. Company policy states that all IT production environments must be highly available. What should a SysOps administrator do to meet this requirement?

A company is running workloads on premises and on AWS. A SysOps administrator needs to automate tasks across all servers on premises by using AWS services. The SysOps administrator must not install long-term credentials on the on-premises servers. What should the SysOps administrator do to meet these requirements?

A company has deployed an application on AWS. The application runs on a fleet of Linux Amazon EC2 instances that are in an Auto Scaling group. The Auto Scaling group is configured to use launch templates. The launch templates launch Amazon Elastic Block Store (Amazon EBS) backed EC2 instances that use General Purpose SSD (gp3) EBS volumes for primary storage. A SysOps administrator needs to implement a solution to ensure that all the EC2 instances can share the same underlying files. The solution also must ensure that the data is consistent. Which solution will meet these requirements?

A company has 50 AWS accounts and wants to create an identical Amazon VPC in each account. Any changes the company makes to the VPCs in the future must be implemented on every VPC. What is the MOST operationally efficient method to deploy and update the VPCs in each account?

A company hosts a web application on an Amazon EC2 instance in a production VPC. Client connections to the application are failing. A SysOps administrator inspects the VPC flow logs and finds the following entry: What is a possible cause of these failed connections?

A media company hosts a public news and video portal on AWS. The portal uses an Amazon DynamoDB table with provisioned capacity to maintain an index of video files that are stored in an Amazon S3 bucket. During a recent event, millions of visitors came to the portal for news. This increase in traffic caused read requests to be throttled in the DynamoDB table. Videos could not be displayed in the portal. The company's operations team manually increased the provisioned capacity on a temporary basis to meet the demand. The company wants the operations team to receive an alert before the table is throttled in the future. The company has created an Amazon Simple Notification Service (Amazon SNS) topic and has subscribed the operations team's email address to the SNS topic. What should the company do next to meet these requirements?

A company runs its web application on multiple Amazon EC2 instances that are part of an Auto Scaling group. The company wants the Auto Scaling group to scale out as soon as CPU utilization rises above 50% for the instances. How should a SysOps administrator configure the Auto Scaling group to meet these requirements?

A company's VPC has an existing IPv4 configuration. The IPv4 configuration includes public subnets, private subnets, NAT gateways, default route tables, and ACLs. The company associates an IPv6 CIDR block with the VPC. The company adds IPv6 allocations to each existing subnet and adds routes to the route tables. The company updates the ACLs to allow all IPv6 traffic. Public subnets are working as expected, but private subnets are not allowing internet IPv6 connections. What should a SysOps administrator do to allow outbound-only connectivity for the new IPv6 subnets?

A company runs a worker process on three Amazon EC2 instances. The instances are in an Auto Scaling group that is configured to use a simple scaling policy. The instances process messages from an Amazon Simple Queue Service (Amazon SQS) queue. Random periods of increased messages are causing a decrease in the performance of the worker process. A SysOps administrator must scale the instances to accommodate the increased number of messages. Which solution will meet these requirements?

A company has created a NAT gateway in a public subnet in a VPC. The VPC also contains a private subnet that includes Amazon EC2 instances. The EC2 instances use the NAT gateway to access the internet to download patches and updates. The company has configured a VPC flow log for the elastic network interface of the NAT gateway. The company is publishing the output to Amazon CloudWatch Logs. A SysOps administrator must identify the top five internet destinations that the EC2 instances in the private subnet communicate with for downloads. What should the SysOps administrator do to meet this requirement in the MOST operationally efficient way?

A company manages its production applications across several AWS accounts. The company hosts the production applications on Amazon EC2 instances that run Amazon Linux 2. The EC2 instances are spread across multiple VPCs. Each VPC uses its own Amazon Route 53 private hosted zone for private DNS. A VPC from Account A needs to resolve private DNS records from a private hosted zone that is associated with a different VPC in Account B. What should a SysOps administrator do to meet these requirements?