Amazon AWS Certified SysOps Administrator - Associate SOA-C01
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#271 (Accuracy: 100% / 1 votes)
A recent AWS CloudFormation stack update has failed and returned the error UPDATE_ROLLBACK_FAILED. A SysOps Administrator is tasked with returning the
CloudFormation stack to its previous working state.
What must be done to accomplish this?
  • A. Fix the error that caused the rollback to fail, then select the Continue Update Rollback action in the console.
  • B. Select the Update Stack action with a working template in the console.
  • C. Update the password of the IAM user, then select the Continue Update Rollback action in the console.
  • D. Use the AWS CLI to manually change the stack status to UPDATE_COMPLETE, then continue updating the stack with a working template.
#272 (Accuracy: 100% / 3 votes)
A company has a web application that is used across all company divisions. Each application request contains a header that includes the name of the division making the request. The SysOps Administrator wants to identify and count the requests from each division.
Which condition should be added to the web ACL of the AWS WAF to accomplish this?
  • A. Cross-site scripting
  • B. Geo match
  • C. IP match
  • D. String match
#273 (Accuracy: 100% / 2 votes)
An Application Load Balancer (ALB) is configured in front of Amazon EC2 instances. The current target group health check configuration is:
✑ Interval: 30 seconds
✑ Unhealthy threshold: 10
✑ Healthy threshold: 5
Which steps should a SysOps Administrator take to reduce the amount of time needed to remove unhealthy instances? (Choose two.)
  • A. Change the healthy threshold configuration to 1.
  • B. Change the interval configuration to 15.
  • C. Change the interval configuration to 60.
  • D. Change the unhealthy threshold configuration to 15.
  • E. Change the unhealthy threshold configuration to 5.
#274 (Accuracy: 100% / 2 votes)
A company has received a notification in its AWS Personal Health Dashboard that one of its Amazon EBS-backed Amazon EC2 instances is on hardware that is scheduled for maintenance. The instance runs a critical production workload that must be available during normal business hours.
Which steps will ensure that the instance maintenance does not produce an outage?
  • A. Configure an Amazon Lambda function to automatically start the instance if it is stopped.
  • B. Create an Amazon Machine Image (AMI) of the instance and use the AMI to launch a new instance once the existing instance is retired.
  • C. Enable termination protection on the EC2 instance.
  • D. Stop and start the EC2 instance during a maintenance window outside of normal business hours.
#275 (Accuracy: 100% / 1 votes)
A SysOps Administrator needs to retrieve a file from the GLACIER storage class of Amazon S3. The Administrator wants to receive an Amazon SNS notification when the file is available for access.
What action should be taken to accomplish this?
  • A. Create an Amazon CloudWatch Events event for file restoration from Amazon S3 Glacier using the GlacierJobDescription API and send the event to an SNS topic the Administrator has subscribed to.
  • B. Create an AWS Lambda function that performs a HEAD request on the object being restored and checks the storage class of the object. Then send a notification to an SNS topic the Administrator has subscribed to when the storage class changes to STANDARD.
  • C. Enable an Amazon S3 event notification for the s3:ObjectCreated:Post event that sends a notification to an SNS topic the Administrator has subscribed to.
  • D. Enable S3 event notification for the s3:ObjectCreated:Completed event that sends a notification to an SNS topic the Administrator has subscribed to.
#276 (Accuracy: 100% / 1 votes)
A company's website went down for several hours. The root cause was a full disk on one of the company's Amazon EC2 instances.
Which steps should the SysOps Administrator take to prevent this from happening in the future?
  • A. Configure Amazon CloudWatch Events to filter and forward AWS Health events for disk space utilization to an Amazon SNS topic to notify the Administrator.
  • B. Create an AWS Lambda function to describe the volume status for each EC2 instance. Post a notification to an Amazon SNS topic when a volume status is impaired.
  • C. Enable detailed monitoring for the EC2 instances. Create an Amazon CloudWatch alarm to notify the Administrator when disk space is running low.
  • D. Use the Amazon CloudWatch agent on the EC2 instances to collect disk metrics. Create a CloudWatch alarm to notify the Administrator when disk space is running low.
#277 (Accuracy: 100% / 2 votes)
An Amazon EC2 instance in a private subnet needs to copy data to an Amazon S3 bucket. For security reasons, the connection from the EC2 instance to Amazon
S3 must not traverse across the Internet.
What action should the SysOps Administrator take to accomplish this?
  • A. Create a NAT instance and route traffic destined to Amazon S3 through it.
  • B. Create a VPN connection between the EC2 instance and Amazon S3.
  • C. Create an S3 VPC endpoint in the VPC where the EC2 instance resides.
  • D. Use AWS Direct Connect to maximize throughput and keep the traffic private.
#278 (Accuracy: 100% / 1 votes)
An application runs on Amazon EC2 instances behind an Application Load Balancer (ALB). The instances run in an Auto Scaling group across multiple Availability
Zones. The Information Security team wants to track application requests by the originating IP and the EC2 instance that processes the request.
Which of the following tools or services provides this information?
  • A. Amazon CloudWatch
  • B. AWS CloudTrail
  • C. Elastic Load Balancing access logs
  • D. VPC Flow Logs
#279 (Accuracy: 100% / 2 votes)
A Storage team wants all data transfers to an Amazon S3 bucket to remain within the AWS network. The team makes all changes to the AWS network infrastructure manually. An S3 VPC endpoint is created, and an endpoint policy with the proper permissions is set up. However, the application running on
Amazon EC2 instances in the VPC is still unable to access the S3 bucket endpoint.
What is one cause of this issue?
  • A. Request metrics for the S3 bucket need to be enabled.
  • B. S3 access logs need to be disabled for the VPC endpoints to function.
  • C. The subnet does not have the VPC endpoint as a target in the route table.
  • D. The EC2 instances need to have an Elastic Network Adapter enabled.
#280 (Accuracy: 100% / 1 votes)
An application is running on an Amazon EC2 instance. A SysOps Administrator is tasked with allowing the application access to an Amazon S3 bucket.
What should be done to ensure optimal security?
  • A. Apply an S3 bucket policy to allow access from all EC2 instances.
  • B. Create an IAM user and create a script to inject the credentials on boot.
  • C. Create and assign an IAM role for Amazon S3 access to the EC2 instance.
  • D. Embed an AWS credentials file for an IAM user inside the Amazon Machine Image (AMI).