M9 : Load Balancing and Auto Scaling

What are the three types of AWS load balancers? (Multiple answers)

• Adaptable Load Balancer

• Network Load Balancer

• Classic Load Balancer

• Application Load Balancer

• Reverse Proxy Load Balancer

Which of these important Cloud concepts will an ELB improve? (Choose two answers)

• Fault Tolerance

• High Availability

• Scalability

• Elasticity

What combination of AWS services will achieve high availability, fault-tolerance, scalability, and elasticity?

• EC2 and ELB

• EC2 and Auto Scaling group

• EC2

• EC2, ELB and Auto Scaling group with automation

You have created an application load balancer and selected two EC2 instances as targets. However, when you are trying to make a request to load balancer from the internet, the requests are getting failed. What could be the reason?

• The subnets specified for load balancer does not have internet gateway attached to their route tables.

• Target EC2 instances are in private instances without any internet gateway attached.

• There is no elastic IP address attached to the load balancer.

• Cross-zone load balancer is not enabled

In this scenario, we have an ELB balancing traffic between two instances, but the instances are reaching capacity. What could we do to automate a solution for handling the traffic? Please select the best possible answer.

• Add another EC2 instance

• Terminate an EC2 instance

• Create an Auto Scaling Group

• Add another ELB

What are the types of Scaling Policies available within Auto Scaling groups? (Multiple answers)

• Step scaling policy

• Simple scaling policy

• Manual scaling policy

• Target tracking policy

Which underlying products are used for Auto Scaling groups? (Choose two answers)

• CloudFormation

• Launch Configurations

• Launch Templates

• Code Deploy

Which gateway provides block storage in S3 with point-in-time backups as EBS snapshots?

• Tape Gateway (VTL)

• Internet Gateway

• File Storage

• Volume Gateway

When would you use the Database Migration Service (DMS)?

• When migrating a database from the AWS network to an on-premise network, or within your AWS environment.

• When needing to scale a database without downtime

• When migrating a database to and from other platforms besides AWS

• When needing a full database schema conversion

• All of these answers are correct.

What are the key features of ID Federation? (Choose all that apply)

• allows others to access an AWS account without having to create IAM Users

• grants an AWS account the ability to store an external identity's credentials

• provides identities from on-premises systems a way to access an AWS account

• provides existing identity providers the freedom to manage their identities while giving access to an AWS account