You need to design a system that handles millions of TCP connections with very low latency and also routes HTTP requests based on URL paths. What is the best load balancer setup?

hard📝 Best Practice Q15 of 15

AWS - Elastic Load Balancing

AUse NLB for TCP connections and ALB for HTTP routing

BUse only an Application Load Balancer (ALB) for all traffic

CUse only a Network Load Balancer (NLB) for all traffic

DUse Classic Load Balancer for both TCP and HTTP traffic

Step-by-Step Solution

Solution:

Step 1: Identify requirements for TCP and HTTP traffic
Millions of TCP connections need low latency, best handled by NLB. HTTP routing by URL paths requires ALB.
Step 2: Combine load balancers for best performance
Use NLB for TCP traffic and ALB for HTTP traffic to meet both needs efficiently.
Final Answer:
Use NLB for TCP connections and ALB for HTTP routing -> Option A
Quick Check:
TCP low latency + HTTP routing = NLB + ALB [OK]

Quick Trick: Combine NLB for TCP and ALB for HTTP routing [OK]

Common Mistakes:

Using only ALB for TCP traffic causing latency
Using only NLB missing HTTP routing features
Choosing Classic Load Balancer for modern needs

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You need to design a system that handles millions of TCP connections with very low latency and also routes HTTP requests based on URL paths. What is the best load balancer setup?

Step 1: Identify requirements for TCP and HTTP traffic

Step 2: Combine load balancers for best performance

Final Answer:

Quick Check:

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