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Wir sind uns darüber klar, dass die IT-Brache ein neuartiges Industriewesen ist. Sie ist auch eine der Ketten, die die Wirtschaft vorantreiben. Deswegen spielt sie eine gewichtige Rolle und man soll sie nicht ignorieren. Unsere Schulungsunterlagen zur Amazon DOP-C02 Zertifizierungsprüfung sind das Ergebnis der langjährigen ständigen Untersuchung und Erforschung von den erfahrenen IT-Experten aus Zertpruefung. An ihrer Autorität besteht kein Zweifel. Falls Sie unsere Prüfungsmaterialien gekauft haben, werden wir Ihnen einjähriger Aktualisierung versprechen.
| Certification Vendor: | Amazon Web Services (AWS) |
|---|---|
| Exam Name: | AWS Certified DevOps Engineer - Professional |
| Exam Number: | DOP-C02 |
| Available Languages: | Japanese, English, Simplified Chinese, Korean |
| Certificate Validity Period: | 3 years |
| Passing Score: | 720 (on a 100-1000 point scale, 72%) |
| Exam Duration: | 180 minutes |
| Exam Format: | Multiple-choice (single response), Multiple-choice (multiple response) |
| Exam Price: | USD 300 |
| Real Exam Qty: | 75 |
| Related Certifications: | AWS Certified Solutions Architect - Professional AWS Certified SysOps Administrator - Associate AWS Certified Developer - Associate |
| Sample Questions: | Amazon DOP-C02 Sample Questions |
| Exam Way: | In-person at Pearson VUE testing centers or online proctored exam |
| Pre Condition: | Recommended: One of the following Associate-level certifications or equivalent experience:- AWS Certified Solutions Architect - Associate- AWS Certified Developer - Associate- AWS Certified SysOps Administrator - AssociateRecommended work experience: 2+ years of experience in provisioning, operating, and managing AWS environments |
| Official Syllabus URL: | https://aws.amazon.com/certification/certified-devops-engineer-professional/ |
>> DOP-C02 Fragen Und Antworten <<
Wir sind uns darüber klar, dass die IT-Brache ein neuartiges Industriewesen ist. Sie ist auch eine der Ketten, die die Wirtschaft vorantreiben. Deswegen spielt sie eine gewichtige Rolle und man soll sie nicht ignorieren. Unsere Schulungsunterlagen zur Amazon DOP-C02 Zertifizierungsprüfung sind das Ergebnis der langjährigen ständigen Untersuchung und Erforschung von den erfahrenen IT-Experten aus Zertpruefung. An ihrer Autorität besteht kein Zweifel. Falls Sie unsere Prüfungsmaterialien gekauft haben, werden wir Ihnen einjähriger Aktualisierung versprechen.
Um die Zertifizierung zu erhalten, müssen die Kandidaten ihre Fähigkeit demonstrieren, kontinuierliche Lieferungssysteme und Methoden auf AWS zu entwerfen und zu verwalten, Sicherheitskontrollen zu implementieren und zu automatisieren, hochverfügbare, skalierbare und fehlertolerante Systeme bereitzustellen und zu betreiben sowie Systeme zu überwachen und zu protokollieren, um die Betriebsverfügbarkeit und -leistung zu gewährleisten.
261. Frage
A company has deployed a critical application in two AWS Regions. The application uses an Application Load Balancer (ALB) in both Regions. The company has Amazon Route 53 alias DNS records for both ALBs.
The company uses Amazon Route 53 Application Recovery Controller to ensure that the application can fail over between the two Regions. The Route 53 ARC configuration includes a routing control for both Regions. The company uses Route 53 ARC to perform quarterly disaster recovery (DR) tests.
During the most recent DR test, a DevOps engineer accidentally turned off both routing controls. The company needs to ensure that at least one routing control is turned on at all times.
Which solution will meet these requirements?
Antwort: B
Begründung:
The correct solution is to create a new assertion safety rule in Route 53 ARC and apply it to the two routing controls. An assertion safety rule is a type of safety rule that ensures that a minimum number of routing controls are always enabled. The ATLEAST type of assertion safety rule specifies the minimum number of routing controls that must be enabled for the rule to evaluate as healthy. By setting the threshold to 1, the rule ensures that at least one routing control is always turned on. This prevents the scenario where both routing controls are accidentally turned off and the application becomes unavailable in both Regions.
The other solutions are incorrect because they do not use safety rules to prevent both routing controls from being turned off. A gating safety rule is a type of safety rule that prevents routing control state changes that violate the rule logic. The OR type of gating safety rule specifies that one or more routing controls must be enabled for the rule to evaluate as healthy. However, this rule does not prevent a user from turning off both routing controls manually. A resource set is a collection of resources that are tested for readiness by Route 53 ARC. A readiness check is a test that verifies that all the resources in a resource set are operational. However, these concepts are not related to routing control states or safety rules. Therefore, creating a new resource set and a new readiness check will not ensure that at least one routing control is turned on at all times. References:
Routing control in Amazon Route 53 Application Recovery Controller
Viewing and updating routing control states in Route 53 ARC
Creating a control panel in Route 53 ARC
Creating safety rules in Route 53 ARC
262. Frage
A company recently launched multiple applications that use Application Load Balancers. Application response time often slows down when the applications experience problems A DevOps engineer needs to Implement a monitoring solution that alerts the company when the applications begin to perform slowly The DevOps engineer creates an Amazon Simple Notification Semce (Amazon SNS) topic and subscribe the company's email address to the topic What should the DevOps engineer do next to meet the requirements?
Antwort: A
Begründung:
Option A is incorrect because creating an Amazon EventBridge rule that invokes an AWS Lambda function to query the applications on a 5-minute interval is not a valid solution. EventBridge rules can only trigger Lambda functions based on events, not on time intervals. Moreover, querying the applications on a 5-minute interval might incur unnecessary costs and network overhead, and might not detect performance issues in real time.
Option B is correct because creating an Amazon CloudWatch Synthetics canary that runs a custom script to query the applications on a 5-minute interval is a valid solution. CloudWatch Synthetics canaries are configurable scripts that monitor endpoints and APIs by simulating customer behavior. Canaries can run as often as once per minute, and can measure the latency and availability of the applications. Canaries can also send notifications to an Amazon SNS topic when they detect errors or performance issues1.
Option C is incorrect because creating an Amazon CloudWatch alarm that uses the AWS/ApplicationELB namespace RequestCountPerTarget metric is not a valid solution. The RequestCountPerTarget metric measures the number of requests completed or connections made per target in a target group2. This metric does not reflect the application response time, which is the requirement. Moreover, configuring the CloudWatch alarm to send a notification when the number of connections becomes greater than the configured number of threads that the application supports is not a valid way to measure the application performance, as it depends on the application design and implementation.
Option D is incorrect because creating an Amazon CloudWatch alarm that uses the AWS/ApplicationELB namespace RequestCountPerTarget metric is not a valid solution, for the same reason as option C.
The RequestCountPerTarget metric does not reflect the application response time, which is the requirement. Moreover, configuring the CloudWatch alarm to send a notification when the average response time becomes greater than the longest response time that the application supports is not a valid way to measure the application performance, as it does not account for variability or outliers in the response time distribution.
Reference:
1: Using synthetic monitoring
2: Application Load Balancer metrics
263. Frage
A DevOps engineer is planning to deploy a Ruby-based application to production. The application needs to interact with an Amazon RDS for MySQL database and should have automatic scaling and high availability.
The stored data in the database is critical and should persist regardless of the state of the application stack.
The DevOps engineer needs to set up an automated deployment strategy for the application with automatic rollbacks. The solution also must alert the application team when a deployment fails.
Which combination of steps will meet these requirements? (Select THREE.)
Antwort: B,C,D
Begründung:
For deploying a Ruby-based application with requirements for interaction with an Amazon RDS for MySQL database, automatic scaling, high availability, and data persistence, the following steps will meet the requirements:
* B. Deploy the application on AWS Elastic Beanstalk. Deploy a separate Amazon RDS for MySQL DB instance outside of Elastic Beanstalk. This approach ensures that the database persists independently of the Elastic Beanstalk environment, which can be torn down and recreated without affecting the database123.
* E. Use the immutable deployment method to deploy new application versions. Immutable deployments provide a zero-downtime deployment method that ensures that if any part of the deployment process fails, the environment is rolled back to the original state automatically4.
* D. Configure an Amazon EventBridge rule to monitor AWS Health events. Use an Amazon Simple Notification Service (Amazon SNS) topic as a target to alert theapplication team. This setup allows for automated monitoring and alerting of the application team in case of deployment failures or other health events56.
References:
* AWS Elastic Beanstalk documentation on deploying Ruby applications1.
* AWS documentation on application auto-scaling7.
* AWS documentation on automated deployment strategies with automatic rollbacks and alerts456.
264. Frage
An online retail company based in the United States plans to expand its operations to Europe and Asia in the next six months. Its product currently runs on Amazon EC2 instances behind an Application Load Balancer. The instances run in an Amazon EC2 Auto Scaling group across multiple Availability Zones. All data is stored in an Amazon Aurora database instance.
When the product is deployed in multiple regions, the company wants a single product catalog across all regions, but for compliance purposes, its customer information and purchases must be kept in each region.
How should the company meet these requirements with the LEAST amount of application changes?
Antwort: A
265. Frage
A DevOps engineer needs to implement integration tests into an existing AWS CodePipelme CI/CD workflow for an Amazon Elastic Container Service (Amazon ECS) service. The CI/CD workflow retrieves new application code from an AWS CodeCommit repository and builds a container image. The CI/CD workflow then uploads the container image to Amazon Elastic Container Registry (Amazon ECR) with a new image tag version.
The integration tests must ensure that new versions of the service endpoint are reachable and that vanous API methods return successful response data The DevOps engineer has already created an ECS cluster to test the service Which combination of steps will meet these requirements with the LEAST management overhead? (Select THREE.)
Antwort: C,D,F
Begründung:
Add a Deploy Stage to the Pipeline, Configure Amazon ECS as the Action Provider:
* By adding a deploy stage to the pipeline and configuring Amazon ECS as the action provider, the pipeline can automatically deploy the new container image to the ECS cluster.
* This ensures that the service is updated with the new image tag, making the new version of the service endpoint reachable.
266. Frage
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