A financial partner connects to a fixed IP over TCP.
Forward traffic to targets in multiple Availability Zones with high performance.
Which load balancer is most appropriate?
Use a Network Load Balancer for Layer 4 forwarding and static IP addresses per Availability Zone.
Detailed explanation
CloudFront is not a general-purpose TCP load balancer.
CloudFront is not a general-purpose TCP load balancer.
NLB provides high-performance Layer 4 TCP or UDP forwarding and static IP addresses for its Availability Zones.
NLB provides high-performance Layer 4 TCP or UDP forwarding and static IP addresses for its Availability Zones.
A DNS record cannot terminate or forward TCP connections.
A DNS record cannot terminate or forward TCP connections.
ALB is a Layer 7 HTTP(S) service and does not satisfy a generic fixed-IP TCP endpoint requirement.
ALB is a Layer 7 HTTP(S) service and does not satisfy a generic fixed-IP TCP endpoint requirement.
Check official documentation
Compare the following points with the official documentation.
Network Load Balancer static IP and TCP listenersの公式説明を確認する。
What to confirm
ALBのL7ルーティングとNLBのL4・固定IPを区別できる。
Key points
- Network Load Balancer
- TCP/UDP
- Static IP
Notes
- Environment: AWS公式SOA-C03試験ガイドとAWS公式ドキュメントの確認
- Confirm current AWS service behavior in the official documentation.
Foundation review
Layer 4 versus Layer 7
NLB handles transport connections; ALB handles HTTP(S) request attributes.
Availability Zone endpoint
An NLB can expose an address for each enabled Availability Zone.