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Category: AWS-DevOps-Pro

Briefing AWS-DevOps: AWS Certified DevOps Engineer -Professional

Which application code deployment method should you use?

You are building out a layer in a software stack on AWS that needs to be able to scale out to react to increased demand as fast as possible. You are running the code on EC2 instances in an Auto Scaling Group behind an ELB. Which application code deployment method should you use?

a fleet of applications with several build tools and dependencies can be a challenging task during rollouts. Furthermore, your deployment service should be designed to do faster rollouts to take advantage of Auto Scaling. https://d0.awsstatic.com/whitepapers/overview-of-deployment-options-on-aws.pdf

Which EBS volume type is best for high performance NoSQ…

Which EBS volume type is best for high performance NoSQL cluster deployments?

io1 volumes, or Provisioned IOPS (PIOPS) SSDs, are best for: Critical business applications that require sustained IOPS performance, or more than 10,000 IOPS or 160 MiB/s of throughput per volume, like large database workloads, such as http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSVolumeTypes.html

How should you minimize cost?

You run accounting software in the AWS cloud. This software needs to be online continuously during the day every day of the week, and has a very static requirement for compute resources. You also have other, unrelated batch jobs that need to run once per day at any time of your choosing. How should you minimize cost?

jobs to perform at any time, we should run the batch jobs when the account software is off. We can achieve Heavy https://d0.awsstatic.com/whitepapers/Cost_Optimization_with_AWS.pdf

What is the most simple tool on AWS to achieve this with?

You need to create a simple, holistic check for your system’s general availablity and uptime. Your system presents itself as an HTTP-speaking API. What is the most simple tool on AWS to achieve this with?

four seconds. In addition, the endpoint must respond with an HTTP status code of 200 or greater and less than 400 within two seconds after connecting. http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/dns-failover-determining-health-of-endpoints.html

Which of these is a violation of this policy?

You are creating an application which stores extremely sensitive financial information. All information in the system must be encrypted at rest and in transit. Which of these is a violation of this policy?

the “encryption in transit” requirement in the scenario. http://docs.aws.amazon.com/ElasticLoadBalancing/latest/DeveloperGuide/elb-listener-config.html

http://docs.aws.amazon.com/awscloudtrail/latest/usergu…

Fill the blanks: ____ helps us track AWS API calls and transitions, ____ helps to understand what resources we have now, and ____ allows auditing credentials and logins.

made by using the AWS Management Console, AWS SDKs, command line tools, and higher-level AWS services. http://docs.aws.amazon.com/awscloudtrail/latest/userguide/cloudtrail-user-guide.html

Which of the following is NOT likely to be an issue co…

You run a clustered NoSQL database on AWS EC2 using AWS EBS. You need to reduce latency for database response times. Performance is the most important concern, not availability. You did not perform the initial setup, someone without much AWS knowledge did, so you are not sure if they configured everything optimally. Which of the following is NOT likely to be an issue contributing to increased latency?

http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/placement-groups.html


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