02At what layer should this load balancer operate? Explain the trade-off between L4 and L7.▼mediumNewCloudflareGoogleMeta2 repliesunlockedA staple of every networking round, and the follow-up is always about TLS termination. Knowing which layer sees what decides most of the answer.Open full answer →
39Since the load balancer went in, every log line shows its IP. How do you recover the real client address?▼mediumNewCloudflareStripeDatadog◆ premiumX-Forwarded-For, PROXY protocol v1 and v2, and the trust boundaries between them. Get the layer wrong and your rate limiting, geo rules and audit trails all key off the balancer's address.Open full answer →
50How do you load balance the Kubernetes control plane, and what breaks first when every client points at one API server endpoint?▼hard★ EssentialNewGoogleUberCloudflare◆ premiumThree API servers behind one health-checked endpoint, etcd on its own quorum, leader election everywhere else. The scored part is naming what degrades quietly before anything alerts.Open full answer →
