A Service gives stable networking to pods (stable name/IP) and load-balances inside the cluster. A LoadBalancer Service typically provisions a cloud L4 load balancer to expose the Service externally. Ingress is usually L7 HTTP routing (host/path rules, TLS) in front of Services, managed by an Ingress Controller.
Advanced answer
Deep dive
Expanding on the short answer — what usually matters in practice:
Explain the "why", not just the "what" (intuition + consequences).
Trade-offs: what you gain/lose (time, memory, complexity, risk).
Edge cases: empty inputs, large inputs, invalid inputs, concurrency.
Examples
A tiny example (an explanation template):
// Example: discuss trade-offs for "kubernetes-service-vs-ingress-vs-loadbalancer:-w"
function explain() {
// Start from the core idea:
// A Service gives stable networking to pods (stable name/IP) and load-balances inside the cl
}
Common pitfalls
Too generic: no concrete trade-offs or examples.
Mixing average-case and worst-case (e.g., complexity).