Free DevOps Engineering on AWS Certification MCQ Questions and Answers

Question 1

When considering AWS Elastic Beanstalk, the \'Swap Environment URLs\' option most directly assists in what?

Accepted Answer

Blue-Green Deployments

Answer

Simply upload the updated version of your application and let your deployment provider (AWS Elastic Beanstalk, AWS CloudFormation, or AWS OpsWorks) to deploy a new version (green). To upgrade to the latest version, just change the ELB URLs in your DNS records. Elastic Beanstalk has a Swap Environment URLs tool to help with the cutover process.

Question 2

Amazon CloudTrail logs ____ activities described by the CloudTrail _____ APIs by default.

Accepted Answer

bucket-level; RESTful

Answer

CloudTrail automatically logs bucket-level actions. Amazon S3 records are written to a log file with other AWS service data. CloudTrail's RESTful API defines the Amazon S3 bucket-level operations that can be logged.

Question 3

You need your DynamoDB-backed API to remain operational amid a catastrophic regional AWS failure. During a significant failure event, you can accept a few minutes of lag or slowness, but the system should resume regular functioning after those few minutes.
What is an effective strategy?

Accepted Answer

Set up DynamoDB cross-region replication in a master-standby configuration, with a single standby in another region. Create an Auto Scaling Group behind an ELB in each of the two regions DynamoDB is running in. Add a Route53 Latency DNS Record with DNS Failover, using the ELBs in the two regions as the resource records.

Answer

There is no such thing as a cross-region ELB, or a cross-region Auto Scaling Group, or a DynamoDB Multi-Region Table. The only viable solution is the cross-regional replication version with two ELBs and ASGs, as well as Route53 Failover and Latency DNS.

Question 4

What is the anticipated behavior when Ansible is called with 'ansible-playbook -i localhost playbook.yml'?

Accepted Answer

Ansible won\'t run, this is invalid command line syntax

Answer

With the '-i' option, Ansible demands an inventory filename, regardless of whether it is a legitimate hostname. A comma must be inserted to the end of this for it to run on the host 'localhost' resolves to.

Question 5

Which language is not supported while creating custom Ansible modules?

Accepted Answer

All of the languages listed are supported

Answer

Ansible modules can be written in any language that the target system supports. The sole condition is that the module send its findings to STOUT as JSON for Ansible to ingest.

DevOps Engineering on AWS Certification Practice Test

DevOps Engineering on AWS Certification Practice Test

Free DevOps Engineering on AWS Certification MCQ Questions and Answers