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Amazon SOA-C02 (AWS Certified SysOps Administrator - Associate) Certification Exam is designed for professionals who work with AWS services and solutions. AWS Certified SysOps Administrator - Associate (SOA-C02) certification exam validates the skills and knowledge required to deploy, manage, and operate scalable, highly available, and fault-tolerant systems on AWS. The SOA-C02 Exam is suitable for individuals who have at least one year of experience in managing AWS systems.
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NEW QUESTION # 259
A development team recently deployed a new version of a web application to production. After the release penetration testing revealed a cross-site scripting vulnerability that could expose user data.
Which AWS service will mitigate this issue?
Answer: A
Explanation:
AWS WAF (Web Application Firewall) helps protect web applications from common web exploits that could affect availability, compromise security, or consume excessive resources. It can be used to mitigate cross-site scripting (XSS) vulnerabilities.
* Set Up AWS WAF:
* Open the AWS WAF console at AWS WAF Console.
* Create a new Web ACL.
* Add Rules for Protection:
* Add managed rules that include protection against common vulnerabilities, including XSS.
* AWS provides managed rule groups, such as the AWS Managed Rules for Common Vulnerabilities and Exposures (CVE) which include protections against XSS.
* Associate WAF with the Application:
* Associate the Web ACL with the resources you want to protect (e.g., CloudFront distribution, Application Load Balancer).
References:
* AWS WAF
* AWS WAF Managed Rules
NEW QUESTION # 260
A SysOps administrator created an AWS Cloud Formation template that provisions Amazon EC2 instances, an Elastic Load Balancer (ELB), and an Amazon RDS DB instance. During stack creation, the creation of the EC2 instances and the creation of the ELB are successful. However, the creation of the DB instance fails.
What is the default behavior of CloudFormation in this scenario?
Answer: D
Explanation:
The default behavior of AWS CloudFormation when the creation of a resource fails is to roll back the stack and delete the stack.
* Stack Creation Failure:
* If any resource within the stack fails to create, CloudFormation rolls back the stack by deleting all the resources that were successfully created up to the point of failure.
* This ensures that no partially created resources are left in the user's account.
* Review the Events:
* Open the CloudFormation console.
* Select the stack and review the "Events" tab to identify the cause of the failure.
AWS CloudFormation Stack Rollback
Troubleshooting AWS CloudFormation
NEW QUESTION # 261
A company has attached the following policy to an IAM user:
Which of the following actions are allowed for the IAM user?
Answer: C
Explanation:
Based on the attached policy, the following actions are allowed for the IAM user:
* Allow Amazon RDS DescribeDBInstances Action:
* The policy allows rds:Describe* actions on all resources without any condition, so the user can describe RDS instances in any region.
* Example action:
rds:DescribeDBInstances
Reference: Amazon RDS IAM Policies
Allow Amazon EC2 Actions in us-east-1 with Condition:
The policy allows ec2:* actions in the us-east-1 region based on the condition StringEquals for ec2:Region.
Example action:
ec2:DescribeInstances (only in us-east-1)
Reference: Amazon EC2 IAM Policies
Deny All Other EC2 Actions Globally:
The policy explicitly denies all actions that are not ec2:*, which means it blocks any other EC2 actions that don't match the allow rule above.
Reference: IAM JSON Policy Elements: NotAction
Given these details, the only valid action among the options is:
A: Amazon RDS DescribeDBInstances action in the us-east-1 Region
NEW QUESTION # 262
A SysOps administrator has enabled AWS CloudTrail in an AWS account If CloudTrail is disabled it must be re-enabled immediately What should the SysOps administrator do to meet these requirements WITHOUT writing custom code''
Answer: D
NEW QUESTION # 263
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 SOS) 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?
Answer: D
Explanation:
To manage scaling of EC2 instances in response to variable SQS message loads effectively:
Monitor SQS Queue Size: Utilize Amazon CloudWatch to monitor the number of visible messages in the SQS queue. This metric gives an indication of the workload that needs to be processed by the worker instances.
Metric Math Expression: Create a CloudWatch metric math expression that calculates the approximate number of messages visible per instance. This provides a more precise scaling metric, ensuring that each instance in the Auto Scaling group has a manageable load.
Target Tracking Scaling Policy: Implement a target tracking scaling policy based on this metric math expression. Configure the Auto Scaling group to automatically adjust its size to maintain a target value for the average number of SQS messages per instance. This approach ensures that the EC2 instances scale up during high traffic periods and scale down when the message load decreases.
This solution optimizes resource utilization and cost while maintaining performance by ensuring that the worker processes are neither overwhelmed nor idle.
NEW QUESTION # 264
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