Day 11: summary IAM, EC2, ELB ASG

___ provides the information required to launch an instance. You can create it from an existing instance

• AMI
• ENI
• User Data
• Launch Configuration
• Launch Template

___ is a durable, block level storage device that you can attach to an EC2 instance

• Instance store
• EBS
• EFS

A company has a multi-tier application that runs 6 frontend web servers in an EC2 ASG in a single AZ behind an ALB. They need to modify the infrastructure to be highly available without modifying the application. Which solution below will suit ?

• Create an ASG that uses 3 instances across each of 2 Regions

• Modify the ASG to use 3 instances across each of 2 AZs
• Create a Launch Template that can be used to quickly create more instances in another Region

• Change ALB in a round-robin configuration to balance traffic to the web tier

___ is ideal for temporary storage, because the data stored on its volumes is not persistent through instance stops, terminations, or hardware failures.

• Instance store
• EBS
• EFS

___ is designed to provide scalable, elastic, concurrent file storage . You can use ___ for workloads and applications running on multiple instances.

• Instance store
• EBS
• EFS

A company run a application on EC2 instances behind an ALB. The instances run in an ASG across multiple AZs. ASG scales out to 20 instances during work hours but scales in to 2 instances overnight. The staff are complaining that the application is very slow when the day begin. Which solution below will suit ?

• Implement a scheduled action that sets the desired capacity to 20 shortly before the office open

• Implement a step scaling action triggered at a lower CPU threshold and decrease the cooldown period
• Implement a target tracking scaling action triggered at a lower CPU threshold and decrease the cooldown period
• Manually set the minimum and maximum capacity to 20 shortly before the office open

___ is a collection of instances that are treated as a logical unit. You configure settings for the load on your application spikes higher or lower, based on demand either make manually or let automatically add and remove capacity to meet changes in demand.

• ELB
• ASG
• Spot Fleets
• Security Groups
• Placement Groups

___ is an EC2 instance type which balance of compute, memory, network resources

• Compute Optimize
• Memory Optimize
• Storage Optimize
• Accelerated Optimize
• General Purpose

A company is planning to migrate a legacy application to AWS. The application currently uses NFS to communicate to an on-premises storage solution to store application data. The application cannot be modified to use any other communication protocols other than NFS for this purpose. Which storage solution should a solutions architect recommend for use after the migration?

• Instance store
• EBS
• EFS

___ is the most cost-optimized EC2 instances pricing model for steady state and predictable usage

• On Demand Instances
• Reserved Instances
• Spot Instances
• Dedicated Instances
• Dedicated Hosts