Global Infrastructure

Question 1

Global application properties

Answer 1

• multiple geos
• Regions and/or Edges
• Decreased latency
• DR (region failure)
• Attack protection

Question 2

AWS Global Infrastructure

Answer 2

• Regions
• AZs
• Edge locations. (PoPs)
• Points of presence
• Local zones

Question 3

Route 53

Answer 3

Managed DNS (global)

• A record (IP to domain)
• AAAA record (IP to domain IPV6)
• CNAME hostname to hostname
• Alias hostname to AWS resource

Question 4

Routing policies

Answer 4

Policies

• Simple (no health checks)
• Weighted
• Latency
• Failover routing policy

Question 5

CloudFront

Answer 5

Global content delivery network (CDN)

• Edge location deployment cache
• Lower latency
• 216+ PoPs (edge locations)
• DDoS protection (with Shield and WAF)

Question 6

CloudFront Origins

Answer 6

S3 Bucket

• For distributing and caching files at the edge
• Origin Access Control (OAC)
• S3 bucket policy
• Can be ingress

HTTP

• ALB
• EC2 instance
• S3 website (must enable static site on bucket)

Question 7

S3 Transfer Acceleration

Answer 7

• Increase transfer speed to S3 bucket
• Use edge location that forwards to S3

Question 8

AWS Global Accelerator

Answer 8

• Improve availability using AWS network
• Leverage AWS internal network
• Uses 2 static Anycast IPs
• Edges send traffic to application

Question 9

AWS Outposts

Answer 9

• Hybrid cloud (cloud + on-prem)
• Server racks to make AWS on-prem
• Must provide physical security for rack

Question 10

AWS Outpost Benefits

Answer 10

• Low latency
• Local data processing
• Data residency
• Easy migration
• Fully managed
• ec3, ebs, s3, eks, ecs, rds, emr

Question 11

AWS Wavelength

Answer 11

5G

• Infra embedded in telecom 5g edge locations
• Brings AWS to edge of 5G
• EC2, EBS, VPC, etc.
• Ultra low latency
• Traffic never leaves CSP (comm service provider)
• High bandwidth
• No added charges or service agreements

Question 12

AWS Local Zones

Answer 12

• Extend your VPC to more regions
• EC2 RDS, ECS, ElastiCache, DirectConnect

Question 13

Global Application Architecture Patterns

Answer 13

• Single region, single AZ
• Single region, multi AZ
• Multi-region, active-passive
• Multi-region, active-active