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[General] Practice SOA-C03 Test Engine & SOA-C03 Valid Test Format

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【General】 Practice SOA-C03 Test Engine & SOA-C03 Valid Test Format

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Amazon SOA-C03 Exam Syllabus Topics:
TopicDetails
Topic 1
  • Reliability and Business Continuity: This section measures the skills of System Administrators and focuses on maintaining scalability, elasticity, and fault tolerance. It includes configuring load balancing, auto scaling, Multi-AZ deployments, implementing backup and restore strategies with AWS Backup and versioning, and ensuring disaster recovery to meet RTO and RPO goals.
Topic 2
  • Monitoring, Logging, Analysis, Remediation, and Performance Optimization: This section of the exam measures skills of CloudOps Engineers and covers implementing AWS monitoring tools such as CloudWatch, CloudTrail, and Prometheus. It evaluates configuring alarms, dashboards, and notifications, analyzing performance metrics, troubleshooting issues using EventBridge and Systems Manager, and applying strategies to optimize compute, storage, and database performance.
Topic 3
  • Deployment, Provisioning, and Automation: This section measures the skills of Cloud Engineers and covers provisioning and maintaining cloud resources using AWS CloudFormation, CDK, and third-party tools. It evaluates automation of deployments, remediation of resource issues, and managing infrastructure using Systems Manager and event-driven processes like Lambda or S3 notifications.
Topic 4
  • Security and Compliance: This section measures skills of Security Engineers and includes implementing IAM policies, roles, MFA, and access controls. It focuses on troubleshooting access issues, enforcing compliance, securing data at rest and in transit using AWS KMS and ACM, protecting secrets, and applying findings from Security Hub, GuardDuty, and Inspector.
Topic 5
  • Networking and Content Delivery: This section measures skills of Cloud Network Engineers and focuses on VPC configuration, subnets, routing, network ACLs, and gateways. It includes optimizing network cost and performance, configuring DNS with Route 53, using CloudFront and Global Accelerator for content delivery, and troubleshooting network and hybrid connectivity using logs and monitoring tools.

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Amazon AWS Certified CloudOps Engineer - Associate Sample Questions (Q77-Q82):NEW QUESTION # 77
A company is storing backups in an Amazon S3 bucket. These backups must not be deleted for at least 3 months after creation.
What should the CloudOps engineer do?
  • A. Enable S3 Object Lock on a new S3 bucket in compliance mode. Place all backups in the new S3 bucket with a retention period of 3 months.
  • B. Enable S3 Versioning on the existing S3 bucket. Configure S3 Lifecycle rules to protect the backups.
  • C. Enable S3 Object Lock on a new S3 bucket in governance mode. Place all backups in the new S3 bucket with a retention period of 3 months.
  • D. Configure an IAM policy that denies the s3eleteObject action for all users. Three months after an object is written, remove the policy.
Answer: A
Explanation:
Per the AWS Cloud Operations and Data Protection documentation, S3 Object Lock enforces write-once-read-many (WORM) protection on objects for a defined retention period.
There are two modes:
Compliance mode: Even the root user cannot delete or modify objects during the retention period.
Governance mode: Privileged users with special permissions can override lock settings.
For regulatory or audit requirements that prohibit deletion, Compliance mode is the correct choice. When configured with a 3-month retention period, all backup objects are protected from deletion until expiration, ensuring compliance with data retention mandates.
Thus, Option B is the correct CloudOps solution for immutable S3 backups.

NEW QUESTION # 78
An environment consists of 100 Amazon EC2 Windows instances. The Amazon CloudWatch agent is deployed and running on all EC2 instances with a baseline configuration file to capture log files. There is a new requirement to capture the DHCP log files that exist on 50 of the instances.
What is the MOST operationally efficient way to meet this new requirement?
  • A. Run the CloudWatch agent configuration file wizard on each EC2 instance. Verify that the baseline log files are included and add the DHCP log files during the wizard creation process.
  • B. Log in to each EC2 instance with administrator rights. Create a PowerShell script to push the needed baseline log files and DHCP log files to CloudWatch.
  • C. Create an additional CloudWatch agent configuration filo to capture the DHCP logs. Use the AWS Systems Manager Run Command to restart the CloudWatch agent on each EC2 instance with the append-config option to apply the additional configuration file.
  • D. Run the CloudWatch agent configuration file wizard on each EC2 instance and select the advanced detail level. This will capture the operating system log files.
Answer: C
Explanation:
The most operationally efficient approach is to avoid manual reconfiguration or login to each instance. By using AWS Systems Manager Run Command with the append-config option, you can centrally deploy and apply an additional CloudWatch agent configuration file to selected instances. This method scales easily, ensures consistency, and requires no manual intervention on each EC2 instance.

NEW QUESTION # 79
A company moves workloads from public subnets to private subnets to improve security. During testing, servers in the private subnets cannot reach an external API. The VPC has a CIDR block of 10.0.0.0/16, two public subnets, two private subnets, one internet gateway, and a NAT gateway in each private subnet.
The company must ensure that workloads in the private subnets can reach the external API.
Which solution will meet this requirement?
  • A. Deploy a NAT gateway in each public subnet and update private subnet route tables.
  • B. Create an Amazon API Gateway HTTP API as a proxy.
  • C. Create a VPC interface endpoint and update route tables.
  • D. Deploy an outbound-only internet gateway and update route tables.
Answer: A
Explanation:
Comprehensive Explanation (250-350 words):
For IPv4 traffic, private subnets require a NAT gateway in a public subnet to access the internet. NAT gateways must be deployed in public subnets and associated with an Elastic IP address. Private subnet route tables must direct 0.0.0.0/0 traffic to the NAT gateway.
The question states that NAT gateways are incorrectly placed in private subnets, which cannot provide internet access. Deploying NAT gateways in public subnets resolves this issue and restores outbound connectivity to external APIs.
Option A applies only to IPv6. Option B adds unnecessary complexity. Option D is not applicable because external APIs are not AWS services.

NEW QUESTION # 80
A company has millions of subscribers. The company's marketing department wants to automate a process that sends notifications to subscribers every Saturday. The company already has a mechanism that uses Amazon Simple Notification Service (Amazon SNS) to send notifications to subscribers. However, the company has historically sent notifications to subscribers manually A CloudOps engineer needs a solution to automatically send notifications on a schedule.
Which solution will meet these requirements in the MOST operationally efficient way?
  • A. Use the AWS Step Functions scheduling feature to run a Step Functions step every Saturday.Configure the step to publish a message to an SNS topic.
  • B. Create an SNS subscription to a message fanout that sends notifications to subscribers every Saturday.
  • C. Launch a new Amazon EC2 instance. Configure a cron job to use the AWS SDK to send an SNS notification to subscribers every Saturday.
  • D. Create a rule in Amazon EventBridge that triggers every Saturday. Configure the rule to publish a notification to an SNS topic.
Answer: D
Explanation:
Amazon EventBridge can natively schedule events using cron expressions. By creating a rule that triggers every Saturday and directly publishes to the SNS topic, the process becomes fully automated with no servers or custom scripts required. This is the most operationally efficient and cost-effective approach since it leverages managed services without ongoing maintenance or compute resources.

NEW QUESTION # 81
A company's application servers in AWS account 111122223333 use a security group sg-1234abcd. They need to access a database hosted in account 444455556666. The VPCs are connected using a VPC peering connection (pcx-b04deed9).
A CloudOps engineer must configure the database's security group to allow new connections only from the application servers.
What should the engineer do?
  • A. Add an inbound rule to the database's security group. Reference pcx-b04deed9/sg-1234abcd as the source.
  • B. Add an inbound rule to the database's security group. Reference sg-1234abcd as the source.
  • C. Add an inbound rule to the database's security group. Reference 111122223333/sg-1234abcd as the source.
  • D. Add an inbound rule to the database's security group. Reference 444455556666/sg-1234abcd as the source.
Answer: B
Explanation:
According to AWS Cloud Operations and VPC Networking documentation, when VPCs are peered, security groups can reference peer account security groups directly to restrict traffic between them.
This feature allows specifying the security group ID (sg-1234abcd) from the source account (111122223333) in the target database's security group inbound rule. AWS automatically validates that the VPCs are connected through an existing VPC peering connection and that mutual permissions are properly configured.
You do not prefix the security group ID with the account or peering connection (Options A and B), and using the destination account ID (Option D) is incorrect because it represents the database side, not the source.
Hence, the correct configuration is Option C, which references the application servers' security group directly for precise, least-privilege access control.

NEW QUESTION # 82
......
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