How to Prepare For Amazon DOP-C02 Certification Exam?

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| Section | Weight | Objectives |
|---|
| Resilient Cloud Solutions | 15% | - High availability and fault tolerance design
- 1. Disaster recovery strategies
- 2. Multi-AZ and multi-region architectures
|
| Configuration Management and Infrastructure as Code | 17% | - Infrastructure provisioning and automation
- 1. AWS CloudFormation and CDK usage
- 2. Configuration tools and automation strategies
|
| Incident and Event Management | 18% | - Operational response and recovery
- 1. Automated event-driven responses
- 2. Incident detection and remediation
|
| Monitoring and Logging | 15% | - Observability and metrics
- 1. CloudWatch monitoring and alarms
- 2. Log aggregation and analysis
|
| SDLC Automation | 22% | - CI/CD pipeline design and implementation
- 1. Build and deployment automation
- 2. Pipeline optimization and scaling
|
| Security and Compliance Automation | 13% | - Security automation in CI/CD and infrastructure
- 1. Compliance monitoring and auditing
- 2. IAM policy automation and governance
|
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Amazon AWS Certified DevOps Engineer - Professional Sample Questions (Q95-Q100):
NEW QUESTION # 95
A company that uses electronic health records is running a fleet of Amazon EC2 instances with an Amazon Linux operating system. As part of patient privacy requirements, the company must ensure continuous compliance for patches for operating system and applications running on the EC2 instances.
How can the deployments of the operating system and application patches be automated using a default and custom repository?
- A. Use AWS Systems Manager to create a new patch baseline including the corporate repository. Run the AWS-AmazonLinuxDefaultPatchBaseline document using the run command to verify and install patches.
- B. Use AWS Systems Manager to create a new patch baseline including the custom repository. Run the AWS-RunPatchBaseline document using the run command to verify and install patches.
- C. Use AWS Direct Connect to integrate the corporate repository and deploy the patches using Amazon CloudWatch scheduled events, then use the CloudWatch dashboard to create reports.
- D. Use yum-config-manager to add the custom repository under /etc/yum.repos.d and run yum-config-manager-enable to activate the repository.
Answer: B
NEW QUESTION # 96
A company manages multiple AWS accounts in AWS Organizations. The company ' s security policy states that AWS account root user credentials for member accounts must not be used. The company monitors access to the root user credentials.
A recent alert shows that the root user in a member account launched an Amazon EC2 instance. A DevOps engineer must create an SCP at the organization ' s root level that will prevent the root user in member accounts from making any AWS service API calls.
Which SCP will meet these requirements?
Answer: C
NEW QUESTION # 97
A company has developed an AWS Lambda function that handles orders received through an API. The company is using AWS CodeDeploy to deploy the Lambda function as the final stage of a CI/CD pipeline.
A DevOps engineer has noticed there are intermittent failures of the ordering API for a few seconds after deployment. After some investigation the DevOps engineer believes the failures are due to database changes not having fully propagated before the Lambda function is invoked How should the DevOps engineer overcome this?
- A. Add a BeforeAllowTraffic hook to the AppSpec file that tests and waits for any necessary database changes before traffic can flow to the new version of the Lambda function.
- B. Add a validateService hook to the AppSpec file that inspects incoming traffic and rejects the payload if dependent services such as the database are not yet ready.
- C. Add a BeforeAllowTraffic hook to the AppSpec file that tests and waits for any necessary database changes before deploying the new version of the Lambda function.
- D. Add an AfterAlIowTraffic hook to the AppSpec file that forces traffic to wait for any pending database changes before allowing the new version of the Lambda function to respond.
Answer: A
Explanation:
https://docs.aws.amazon.com/codedeploy/latest/userguide/reference-appspec-file-structure-hooks.html#appspec-hooks-lambda
NEW QUESTION # 98
A DevOps team deploys an ECS app behind an ALB using CodeDeploy with all-at-once strategy. Recent deployment increased response times, requiring rollback. The team wants a deployment strategy to monitor new versions before full traffic shift and rollback quickly if issues occur.
Which steps meet these requirements? (Select TWO.)
- A. Use CodeDeployDefault.ECSCanary10Percent5Minutes deployment configuration.
- B. Create a CloudWatch alarm on ALB TargetConnectionErrorCount and associate it with the deployment group for rollback.
- C. Use CodeDeployDefault.ECSLinear10PercentEvery3Minutes deployment configuration.
- D. Create a CloudWatch alarm on ALB TargetResponseTime and associate it with the deployment group for rollback.
- E. Create a CloudWatch alarm on ALB UnHealthyHostCount and associate it with the deployment group for rollback.
Answer: A,D
Explanation:
* Canary deploymentsgradually shift traffic (10% at first), enabling monitoring before full rollout.
* MonitoringTargetResponseTimealigns with detecting increased latency, a key issue reported.
* Alarms tied to the deployment group trigger automatic rollback on threshold breach.
* UnHealthyHostCount and TargetConnectionErrorCount are less specific to response time issues.
* Linear deployment is valid but canary is preferred for quick detection.
References:
CodeDeploy Deployment Configurations
Automatic Rollback with CloudWatch Alarms
NEW QUESTION # 99
A company runs an application that uses an Amazon S3 bucket to store images. A DevOps engineer needs to implement a multi-Region disaster recovery (DR) strategy for the S3 objects. The DevOps engineer enables two-way replication between the S3 buckets.
The company must be able to fail over to a second S3 bucket that is in a second AWS Region. When an image is added to either S3 bucket, the image must be replicated to the other S3 bucket within 15 minutes .
Which combination of steps will meet these requirements in the MOST operationally efficient way? ( Select THREE. )
- A. Enable S3 Replication Time Control (S3 RTC) for each replication rule used in the configuration.
- B. Create an S3 Multi-Region Access Point in an active-passive configuration.
- C. Call the SubmitMultiRegionAccessPointRoutes operation in the Amazon S3 API when the company needs to fail over to the S3 bucket in the second Region.
- D. Use Amazon Route 53 Application Recovery Controller (ARC) to shift traffic from the primary bucket to the failover bucket in the second Region.
- E. Configure a routing control in Amazon Route 53 Application Recovery Controller (ARC) . Add both S3 buckets in an active-passive configuration.
- F. Enable S3 Transfer Acceleration on both S3 buckets.
Answer: A,B,C
Explanation:
* A (S3 RTC) is required to meet the "replicated within 15 minutes" requirement in a verifiable way.
Replication Time Control is the S3 feature that provides a 15-minute replication time SLA for replicated objects (instead of "best effort" replication timing).
* B (S3 Multi-Region Access Point, active-passive) provides the most operationally efficient failover approach. An MRAP gives you a single global access point for S3 across Regions and supports controlled routing to the chosen bucket, avoiding custom DNS logic per application/client.
* C (SubmitMultiRegionAccessPointRoutes) is the mechanism to perform failover for an MRAP by changing which Regional bucket is routed for the Multi-Region Access Point. This gives an explicit, API-driven "fail over now" action aligned with active-passive routing.
Why the others aren't part of the "most operationally efficient" three:
* D (Transfer Acceleration) optimizes upload/download performance over long distances , but it does not guarantee cross-Region replication within 15 minutes and doesn't provide failover control.
* E and F (Route 53 ARC) : ARC is great for controlling failover for endpoints behind routing controls, but for S3 bucket access the more direct and operationally simple approach is S3 Multi-Region Access Points with route updates via the S3 API. Using ARC here adds extra components/process compared to MRAP-native routing control.
NEW QUESTION # 100
......
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