1. You are a Dev Ops engineer for a company. You have been requested to create a rolling deployment solution that is cost-effective with minimal downtime. How should you achieve this? Choose two answers from the options below(Select 2answers)

A) Re-deploy with a Cloud Formation template. define update policies on Auto Scaling groups in your Cloud Formation template
B) Use Update Policy attribute to specify how Cloud Formation handles updates to Auto Scaling Group resource
C) After each stack is deployed, tear down the old stack
D) Re-deploy your application using a Cloud Formation template to deploy Elastic Beanstalk



2. You have a complex system that involves networking, lAM policies, and multiple, threetier applications. You are still receiving requirements for the new system, so you don?t yet know how many AWS(Amazon Web Service) components will be present in the final design. You want to start using AWS(Amazon Web Service) Cloud Formation to define these AWS(Amazon Web Service) resources so that you can automate and version-control your infrastructure. How would you use AWS(Amazon Web Service) Cloud Formation to provide agile new environments for your customers in a cost-effective, reliable manner?

A) Create multiple separate templates for each logical part of the system. and provide the outputs from one to the next using an Amazon Elastic Compute Cloud (EC2) Instance running the SDK for finer granularity of control.
B) Manually create one template to encompass all the resources that you need for the system, only have a single template to version-control.
C) Manually construct the networking layer using Amazon Virtual Private Cloud (VPC) because this does not change often, and then use AWS(Amazon Web Service) Cloud Formation to define all other ephemeral resources.
D) Create multiple separate templates for each logical part of the system, create nested stacks in AWS(Amazon Web Service) Cloud Formation. and maintain several templates to version-control.



3. You have an ELB setup in AWS(Amazon Web Service) with EC2 instances running behind them. You have been requested to monitor the incoming connections to the ELB. Which of the below options can suffice this requirement?

A) Enable access logs on the load balancer
B) Use AWS(Amazon Web Service) Cloud Trail with your load balancer
C) Create a custom metric Cloud Watch filter on your load balancer
D) Use a Cloud Watch Logs Agent



4. You are doing a load testing exercise on your application hosted on AWS. While testing your Amazon RDS My SQL DB Instance, you notice that when you hit 100% CPU utilization on it. your application becomes non- responsive. Your application Is read-heavy. What are methods to scale your data tier to meet the application?s needs? Choose three answers from the options given below Please select:(Select 3answers)

A) Use an Amazon SQS queue to throttle data going to the Amazon RDS DB instance.
B) Add Amazon RDS DB read replicas, and have your application direct read queries to them.
C) Enable Multi-AZ for your Amazon RDS DB instance.
D) Use Elastic Cache In front of your Amazon RDS DB to cache common queries.
E) Shard your data set among multiple Amazon RDS DB instances.
F) Add your Amazon RDS DB instance to an Auto Scaling group and configure your Cloud Watch metric based on CPU utilization.

5. Your company develops a variety of web applications using many platforms and programming languages with different application dependencies. Each application must be developed and deployed quickly and be highly available to satisfy your business requirements. Which of the below methods should you use to deploy these applications rapidly?

A) Use the AWS(Amazon Web Service) Cloud Formation Ducker import service to build and deploy the applications with high availability in multiple Availability Zones.
B) Store each application?s code in a Git repository, develop custom package repository managers for each application?s dependencies. and deploy to AWS(Amazon Web Service) Ops Works in multiple Availability Zones.
C) Develop the applications In Ducker containers, and then deploy them to Elastic Beanstalk environments with Auto Scaling and Elastic Load Balancing.
D) Develop each application?s code In Dynamo DB. and then use hooks to deploy it to Elastic Beanstalk environments with Auto Scaling and Elastic Load Balancing.