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AWS-DevOps-Engineer-Professional Exam Topics - AWS-DevOps-Engineer-Professional Exam Success

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The AWS-DevOps certification exam is intended for DevOps professionals who have several years of experience with AWS and DevOps practices. AWS Certified DevOps Engineer - Professional certification is ideal for individuals who have already earned the AWS Certified SysOps Administrator - Associate or AWS Certified Developer - Associate certifications and are looking to advance their careers in the field of DevOps. By earning this certification, candidates can demonstrate their expertise in designing and implementing DevOps solutions on AWS, which can help them stand out in the job market and advance their careers.

Amazon AWS Certified DevOps Engineer - Professional Sample Questions (Q491-Q496):

NEW QUESTION # 491
When your application is loaded onto an Opsworks stack, which of the following event is triggered by
Opsworks?

A. Deploy
B. Shutdown
C. Setup
C Configure

Answer: A

Explanation:
Explanation
When you deploy an application, AWS Ops Works Stacks triggers a Deploy event, which runs each layer's
Deploy recipes. AWS OpsWorks Stacks also installs stack configuration and deployment attributes that
contain all of the information needed to deploy the app, such as the app's repository and database connection
data. For more information on the Deploy event please refer to the below link:
* http://docs.aws.amazon.com/opsworks/latest/userguide/workingapps.html

NEW QUESTION # 492
A DevOps Engineer manages an application that has a cross-region failover requirement. The application stores its data in an Amazon Aurora on Amazon RDS database in the primary region with a read replica in the secondary region. The application uses Amazon Route 53 to direct customer traffic to the active region.
Which steps should be taken to MINIMIZE downtime if a primary database fails?

A. Use RDS Event Notification to publish status updates to an Amazon SNS topic. Use an AWS Lambda function subscribed to the topic to monitor database health. In the event of a failure, the Lambda function promotes the read replica, then updates Route 53 to redirect traffic from the primary region to the secondary region.
B. Use Amazon CloudWatch to monitor the status of the RDS instance. In the event of a failure, use a CloudWatch Events rule to send a short message service (SMS) to the Systems Operator using Amazon SNS. Have the Systems Operator redirect traffic to an Amazon S3 static website that displays a downtime message. Promote the RDS read replica to the master. Confirm that the application is working normally, then redirect traffic from the Amazon S3 website to the secondary region.
C. Set up an Amazon CloudWatch Events rule to periodically invoke an AWS Lambda function that checks the health of the primary database. If a failure is detected, the Lambda function promotes the read replica.
Then, update Route 53 to redirect traffic from the primary to the secondary region.
D. Set up Route 53 to balance traffic between both regions equally. Enable the Aurora multi-master option, then set up a Route 53 health check to analyze the health of the databases. Configure Route 53 to automatically direct all traffic to the secondary region when a primary database fails.

Answer: A

NEW QUESTION # 493
In reviewing the Auto-Scaling events for your application you notice that your application is scaling up and down multiple times in the same hour. What design choice could you make to optimize for costs while preserving elasticity?
Choose 2 options from the choices given below

A. Modifythe Auto Scaling Group cool down timers
B. Modifythe Auto Scalinggroup termination policy to terminate the newest instancefirst.
C. Modifythe Auto Scaling policy to use scheduled scaling actions
D. Modifythe Amazon Cloudwatch alarm period that triggers your AutoScaling scale downpolicy.

Answer: A,D

Explanation:
Explanation
The Auto Scaling cooldown period is a configurable setting for your Auto Scalinggroup that helps to ensure that Auto Scaling doesn't launch or terminate additional instances before the previous scaling activity takes effect. After the Auto Scalinggroup dynamically scales using a simple scaling policy. Auto Scaling waits for the cooldown period to complete before resuming scaling activities. When you manually scale your Auto Scaling group, the default is not to wait for the cooldown period, but you can override the default and honor the cooldown period. Note that if an instance becomes unhealthy.
Auto Scaling does not wait for the cooldown period to
complete before replacing the unhealthy instance.
For more information on Autoscale cool down timers please visit the URL:
* http://docs.ws.amazon.com/autoscaling/latest/userguide/Cooldown.htmI
You can also modify the Cloudwatch triggers to ensure the thresholds are appropriate for the scale down policy For more information on Autoscaling user guide please visit the URL:
* http://docs.aws.amazon.com/autoscaling/latest/userguide/as-scale-based-on-demand.html

NEW QUESTION # 494
What is the main difference between calling the commands `ansible' and `ansible-playbook' on the command line?

A. `ansible-playbook' is for running entire Playbooks while `ansible' is for calling ad-hoc commands.
B. `ansible-playbook' runs the playbooks by using the `ansible' command to run the individual plays
C. `ansible' is for running individual plays and `ansible-playbook' is for running the entire playbook.
D. `ansible' is for setting configuration and environment variables which `ansible-playbook' will use when running plays.

Answer: A

Explanation:
The `ansible' command is for running Ansible ad-hoc commands remotely via SSH. `ansible- playbook' is for running Ansible Playbook projects.
Reference: http://docs.ansible.com/ansible/intro_adhoc.html

NEW QUESTION # 495
A company is building a solution for storing files containing Personally Identifiable Information (PII) on AWS.
Requirements state:
*All data must be encrypted at rest and in transit.
*All data must be replicated in at least two locations that are at least 500 miles apart.
Which solution meets these requirements?

A. Create primary and secondary Amazon S3 buckets in two separate Availability Zones that are at least
500 miles apart. Use a bucket policy to enforce access to the buckets only through HTTPS. Use a bucket policy to enforce AWS KMS encryption on all objects uploaded to the bucket. Configure cross-region replication between the two buckets. Create a KMS Customer Master Key (CMK) in the primary region for encrypting objects.
B. Create primary and secondary Amazon S3 buckets in two separate Availability Zones that are at least
500 miles apart. Use a bucket policy to enforce access to the buckets only through HTTPS. Use a bucket policy to enforce Amazon S3 SSE-C on all objects uploaded to the bucket. Configure cross-region replication between the two buckets.
C. Create primary and secondary Amazon S3 buckets in two separate AWS Regions that are at least 500 miles apart. Use a bucket policy to enforce access to the buckets only through HTTPS. Use a bucket policy to enforce S3-Managed Keys (SSE-S3) on all objects uploaded to the bucket. Configure cross-region replication between the two buckets.
D. Create primary and secondary Amazon S3 buckets in two separate AWS Regions that are at least 500 miles apart. Use an IAM role to enforce access to the buckets only through HTTPS. Use a bucket policy to enforce Amazon S3-Managed Keys (SSE-S3) on all objects uploaded to the bucket. Configure cross- region replication between the two buckets.

Answer: C

NEW QUESTION # 496
......

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