You are running an application on EC2 instances, and you want to add a new functionality to your application. To add the functionality, your EC2 instance needs to write data in an S3 bucket. Your EC2 instance is already running, and you can’t stop/reboot/terminate it to add the new functionality. How will you achieve this?

Your security team is concerned about sharing the IT resources with any other company. They want you to have the ability to assign the full EC2 server for your company, and you can carve the virtual machines inside the server as you want. As per the security team, if you have to share the compute resource with any other company, you can’t go to the cloud. What can you do in this scenario?

You are in the process of deploying an application on an EC2 instance. The application must call AWS APIs. What is the secured way of passing the credentials to the application?

You are running your application on a fleet of EC2 instances across three AZs in the California region. You are also using elastic load balancing along with Auto Scaling to scale up and down your fleet of EC2 servers. While doing the benchmarks before deploying the application, you have found out that if the CPU utilization is around 60 percent, your application performs the best. How can you make sure that your EC2 servers are always running with 60 percent CPU utilization?

Which EC2 offering provides the information needed to launch an instance?

On which layer of the Open Systems Interconnection model does the application load balancer perform?

You are running a web site that sells trendy designer clothes. At any point in time the average number of concurrent users in your web site is 1,000. You are running the web site on several EC2 servers with Auto Scaling enabled with an application load balancer. You have announced a sale of 70 percent off everything on a certain day. On that day, the moment the sale starts, you notice that the number of concurrent users is exceeding 50,000 in just two minutes, and some users are not able to access the web site. Since you have integrated Auto Scaling, you feel that Auto Scaling should take care of handling all the users. What could be the reason for this?

Which AWS service allows you to manage Docker containers on a cluster of Amazon EC2 servers?

You have developed an application, and it is running on EC2 servers. The application needs to run 24/7 throughout the year. The application is critical for business; therefore, the performance can’t slow down. At the same time, you are looking for the best possible way to optimize your costs. What should be your approach?

Which instance type runs on hardware allocated to a single customer?

You are running an application in the us-east-1 region. The application needs six EC2 instances running at any given point in time. With five availability zones available in that region (us-east-1a, us-east-1b, us-east-1c, us-east-1d, us-east-1e), which of the following deployment models is going to provide fault tolerance and a cost-optimized architecture if one of the AZs goes down?

What are the different types of virtualization available on AWS?

You are running an application on an EC2 server, and you are using the instance store to keep all the application data. One day you realize that all the data stored in the instance store is gone. What could be the reason for this?

You have a fleet of EC2 instances hosting your application and running on an on-demand model that is billed hourly. For running your application, you have enabled Auto Scaling for scaling up and down per the workload, and while reviewing the Auto Scaling events, you notice that the application is scaling up and down multiple times in the same hour. What would you do to optimize the cost while preserving elasticity at the same time?

In which of the following services can you have root-level access to the operating system?

You are running a fleet of EC2 instances for a web server, and you have integrated them with Auto Scaling. Whenever a new server is added to the fleet as part of Auto Scaling, your security team wants it to have the latest OS security fixes. What is the best way of achieving this objective?