AWS 2+3

The sensitivity of the data your company works with means that the instances you run must be secured through complete physical isolation. What should you specify as you configure a new instance?

• Dedicated Host tenancy

• Shared tenancy

• Dedicated Instance tenancy

• Isolated tenancy

A tech company has a CRM application hosted on an Auto Scaling group of On-Demand EC2 instances with different instance types and sizes. The application is extensively used during office hours from 9 in the morning to 5 in the afternoon. Their users are complaining that the performance of the application is slow during the start of the day but then works normally after a couple of hours.

Which of the following is the MOST operationally efficient solution to implement to ensure the application works properly at the beginning of the day?

• Configure a Dynamic scaling policy for the Auto Scaling group to launch new instances based on the CPU utilization.

• Configure a Dynamic scaling policy for the Auto Scaling group to launch new instances based on the Memory utilization.

• Configure a Scheduled scaling policy for the Auto Scaling group to launch new instances before the start of the day.

• Configure a Predictive scaling policy for the Auto Scaling group to automatically adjust the number of Amazon EC2 instances

Which of the following use cases would be most cost effective if run using spot instances?

• Your e-commerce website is built using a publicly available AMI

• You provide high-end video rendering services using a fault-tolerant process that can easily manage a job that was unexpectedly interrupted.

• You’re running a backend database that must be reliably updated to keep track of critical transaction

• Your deployment runs as a static website on S3

In the course of a routine infrastructure audit, your organization discovers that some of your running EC2 instances are not configured properly and must be updated. Which of the following configuration details cannot be changed on an existing EC2 instance

• AMI

• Instance type

• Security group

• Public IP address

A company is deploying an application that processes large quantities of data in parallel. The company plans to use Amazon EC2 instances for the workload. The network architecture must be configurable to prevent groups of nodes from sharing the same underlying hardware. Which networking solution meets these requirements?

• Group the EC2 instances in separate accounts.

• Configure the EC2 instances with dedicated tenancy.

• Configure the EC2 instances with shared tenancy.

• Run the EC2 instances in a spread placement group.

A tech company is having an issue whenever they try to connect to the newly created EC2 instance using a Remote Desktop connection from a computer. Upon checking, the Solutions Architect has verified that the instance has a public IP and the Internet gateway and route tables are in place.

What else should he do to resolve this issue?

• You should restart the EC2 instance since there might be some issue with the instance

• Adjust the security group to allow inbound traffic on port 3389 from the company’s IP address.

• A role can be associated with individual instance-based processes (Linux instances only), giving them permission to access other AWS resources.

• Adjust the security group to allow inbound traffic on port 22 from the company’s IP address

A company plans to migrate a NoSQL database to an EC2 instance. The database is configured to replicate the data automatically to keep multiple copies of data for redundancy. The Solutions Architect needs to launch an instance that has a high IOPS and sequential read/write access.

Which of the following options fulfills the requirement if I/O throughput is the highest priority?

• Use General purpose instances with EBS volume

• Use Compute optimized instances with instance store volume

• Use Storage optimized instances with instance store volume.

• Use Memory optimized instances with EBS volume

A company is using an Auto Scaling group which is configured to launch new t2.micro EC2 instances when there is a significant load increase in the application. To cope with the demand, you now need to replace those instances with a larger t2.2xlarge instance type.

How would you implement this change?

• Just change the instance type to t2.2xlarge in the current launch configuration

• Create a new launch configuration with the new instance type and update the Auto Scaling Group.

• Create another Auto Scaling Group and attach the new instance type

• Change the instance type of each EC2 instance manually

You create an Auto Scaling group with a minimum group size of 3, a maximum group size of 10, and a desired capacity of 5. You then manually terminate two instances in the group. Which of the following will Auto Scaling do

• Create two new instance

• Reduce the desired capacity to 3

• Nothing

• Increment the minimum group size to 5

Answer explanation

Desired capacity value of 5, there should be five healthy instances

A company plans to migrate its suite of containerized applications running on-premises to a container service in AWS. The solution must be cloud-agnostic and use an open-source platform that can automatically manage containerized workloads and services. It should also use the same configuration and tools across various production environments.

What should the Solution Architect do to properly migrate and satisfy the given requirement?

• Migrate the application to Amazon Elastic Kubernetes Service with EKS worker nodes.

• Migrate the application to Amazon Container Registry (ECR) with Amazon EC2 instance worker nodes

• Migrate the application to Amazon Elastic Container Service with ECS tasks that use the AWS Fargate launch type

• Migrate the application to Amazon Elastic Container Service with ECS tasks that use the Amazon EC2 launch type