1. Which of the following can be configured as targets for Cloud watch Events. Choose 3 answers from the options given below(Select 3answers)

A) Amazon ECS Tasks
B) AWS Lambda Functions
C) Amazon EC2 Instances
D) Amazon Code Commit



2. Your current log analysis application takes more than four hours to generate a report of the top 10 users of your web application. You have been asked to implement a system that can report this information in real time, ensure that the report Is always up to date, and handle increases in the number of requests to your web application. Choose the option that is cost-effective and can fulfill the requirements. Please select:

A) Publish your log data to an Amazon S3 bucket. Use AWS(Amazon Web Service) Cloud Formation to create an Auto Scaling group t scale your post-processing application which is configured to pull down your log files stored in Amazon S3.
B) Publish your data to Cloud Watch Logs. and configure your application to auto scale to handle the load on demand.
C) Post your log data to an Amazon Kinesis data stream, and subscribe your log-processing application so that is configured to process your logging data.
D) Configure an Auto Scaling group to increase the size of your Amazon EMR cluster



3. You recently encountered a major bug in your web application during a deployment cycle. During this failed deployment, it took the team four hours to roll back to a previously working state, which left customers with a poor user experience. During the post-mortem, you team discussed the need to provide a quicker, more robust way to roll back failed deployments. You currently run your web application on Amazon EC2 and use Elastic Load Balancing for your load balancing needs. Which technique should you use to solve this problem?

A) Use an AWS(Amazon Web Service) Ops Works stack to re-deploy your web application and use AWS(Amazon Web Service) Ops Works Deployment Command to initiate a rollback during failures
B) Using Elastic Bean Stalk redeploy your web application and use the Elastic Bean Stalk API to trigger a Failed Deployment API call to initiate a rollback to the previous version.
C) Create deployable versioned bundles of your application. Store the bundle on Amazon 53. Re-deploy your web application on Elastic Beanstalk and enable the Elastic Beanstalk auto rollback feature tied to Cloud Watch metrics that define failure.
D) Create deployable versioned bundles of your application. Store the bundle on Amazon S3. Use an AWS(Amazon Web Service) Ops Works stack to redeploy your web application and use AWS(Amazon Web Service) Ops Works application versioning to initiate a rollback during failures.



4. Your application is having a very high traffic, so you have enabled auto scaling in multi availability zone to suffice the needs of your application but you observe that one of the availability zone is not receiving any traffic. What can be wrong here?

A) Auto scaling can be enabled for multi AZ only in north Virginia region
B) Instances need to manually added to availability zone
C) Availability zone is not added to Elastic load balancer
D) Auto scaling only works for single availability zone



5. You have an I/O and network-intensive application running on multiple Amazon EC2 instances that cannot handle a large ongoing increase in traffic. The Amazon EC2 instances are using two Amazon EBS PIOPS volumes each, and each instance is identical. Which of the following approaches should be taken in order to reduce load on the instances with the least disruption to the application?

A) Create an AMI from each instance, and set up Auto Scaling groups with a larger instance type that has enhanced networking enabled and is Amazon EBS.
B) Add an Amazon EBS volume for each running Amazon EC2 instance and implement RAID striping to improve 110 performance.
C) Stop each instance and change each instance to a larger Amazon EC2 instance type that has enhanced networking enabled and Is Amazon EBS-optimized. Ensure that RAID striping Is also set up on each instance.
D) Create an AMI from an instance, and set up an Auto Scaling group with an instance type that has enhanced networking enabled and is Amazon EBS.
E) Add an instance-store volume for each running Amazon EC2 instance and implement RAID striping to improve I/O performance.