Cohort 2Class 3(RDS,HA) Sat 2nd, 2023

A company is planning to migrate an on premise 15 TB MySQL database cluster onto AWS. The replication lag needs to be less than 100 ms for the cluster and the size is expected to double in the next couple of months. Which of the following would be the ideal data store that should be chosen in AWS?

• AWS RDS MYSQL

• AWS Aurora

• AWS DynamoDB

• AWS Redshift

You're running an application that needs to be highly available in eu-west-1. In order for this application to function correctly, 10 related EC2 instances must running at all times. Which of the following deployments provides the ability to meet the requirements should an AZ go down? (choose 2)

• 3 EC2 instances in eu-west-1a, 3 EC2 instances in eu-west-1b, and 3 EC2 instances in eu-west-1c

• 10 EC2 instances in eu-west-1a, 0 EC2 instances in eu-west-1b, and 10 EC2 instances in eu-west-1c

• 4 EC2 instances in eu-west-1a, 4 EC2 instances in eu-west-1b, and 2 EC2 instances in eu-west-1c.

• 5 EC2 instances in eu-west-1a, 5 EC2 instances in eu-west-1b, and 5 EC2 instances in eu-west-1c

What is the name of the service or feature that will create and terminate EC2 instances when utilization changes?

• Predictive Capacity Planning

• EC2 Auto Scaling

• EC2 Auto Provisioning

• EC2 Auto Recovery

You have suggested moving your company's web servers to AWS, but your supervisor is concerned about cost. Which of the following deployments will give you the most scalable and cost-effective solution?

• A hybrid solution that leverages on-premise resources

• A solution that's built to run 24/7 at 100% capacity, using a fixed number of T2 Micro instances

• An EC2 auto-scaling group that will expand and contract with demand

• None of these options

What method detects when to replace an EC2 instance that is assigned to an Auto-Scaling group?

• health check

• load balancing algorithm

• EC2 health check

• not currently supported

A Solutions Architect is designing a microservices-based application using Amazon ECS. The application includes a WebSocket component, and the traffic needs to be distributed between microservices based on the URL.. Which service should the Architect choose to distribute the workload?

• ELB Classic Load Balancer

• Amazon Route 53 DNS

• ELB Application Load Balancer

• Amazon Cloud Front

A Solution Architect has a two-tier application with a single Amazon EC2 instance web server and Amazon RDS MySQL Multi-AZ DB instances. The Architect is re-architecting the application for high availability by adding instances in a second Availability Zone. Which additional services will improve the availability of the application? (Choose two.)

• Auto Scaling group

• AWS CloudTrail

• ELB Classic Load Balancer

• Amazon DynamoDB

• Amazon ElastiCache

An ALB will route traffic to multiple groups of EC2 Instances per routing rules. What is the name of the EC2 Instance groups?

• Target Groups

• Cluster Groups

• Bundle Groups

• Collection Groups

Which AWS database service is best suited for traditional Online Transaction Processing (OLTP)?

• Amazon Redshift

• Amazon Relational Database Service (Amazon RDS)

• Amazon Glacier

• Elastic Database

You are auditing your RDS estate and you discover an RDS production database that is not encrypted at rest. This violates company policy and you need to rectify this immediately. What should you do to encrypt the database as quickly and as easy as possible.

• Take a snapshot of your unencrypted DB Instance and then restore it making sure you select to encrypt the new instance.

• Use AWS Database Migration Service

• Use the RDS Import/Export Wizard to migrate the unencrypted RDS instance across to a new encrypted database

• Create a new DB Instance with encryption enabled and then manually migrate your data into it.