Networking Services Review

Question 1

What are the Networking Services?

Answer 1

Route 53
VPC (Virtual Private Cloud)
Direct Connect
VPN(Virtual Private Network)
API Gateway

Question 2

Route 53

Answer 2

A GLOBAL DNS service that routes users to applications
Highly available - route to another server if one is down
Can lock out by a country
DNS changes are not instantaneous due to propagation

Question 3

VPC

Answer 3

Virtual Private Cloud -logically isolated network in the AWS Cloud
Enables virtual networks
Can have private(uses NAT) and public subnets
Can enable a connection to your data center
Can have a private connection to apps

Question 4

Direct Connect

Answer 4

A dedicated physical network connection from your on-prem data center to AWS

Question 5

VPN

Answer 5

Virtual Private Network - Site-to-Site VPN creates a secure connection between your internal networks and AWS virtual private clouds

Question 6

API Gateway

Answer 6

Allows you to build and fully manage APIs
Monitoring, metrics
Can distribute through CloudFront
Includes VPC and On-prem as well as public

Question 7

What is Peering?

Answer 7

Connecting multiple VPC’s

Question 8

What is ELB?

Answer 8

Elastic Load Balancing = Horizontal scaling: adding more instances
Better than vertical which you have to shut down for and have to guess capacity
Integrates with EC2 ECS(containers), Lambda
Supports 1+ AZ’s in a region
3 types of load balancing: ALB, NLB, Classic

Question 9

When would you choose Elastic Beanstalk over using EC2 directly?

Answer 9

Monitoring
Automatic Scaling
Deployment - you want to deploy an app with minimal knowledge of other services
Reduce Maintenance
You only have a few customizations (if you have a lot, use EC2 directly)