# Practice Bank: Services & Networking

Like the workloads practice bank before it, this module has no new lesson. **Services & Service
Discovery** and **Ingress & NetworkPolicy Foundations** already taught the concepts. This is four
short Labs that drill exposing a Deployment, reasoning about a NodePort, and resolving a Service
by DNS from inside the cluster — the everyday networking moves you'll use constantly from here on.

## How to use it

Work through the four Labs in order. Two of them (`services-mcq`, `expose-service-basics`) will
feel familiar — you did a close variant of `expose-service-basics` in the earlier teaching
module. That's intentional: it's the same skill under slightly different conditions, checking
that it generalizes rather than that you memorized one exact command.

## Instructor Notes

**Delivery:** No lesson/demonstration/knowledge-check scaffolding by design — this is the
original Phase 1-5 "networking" scenario bank plus two extra Labs (`nodeport-task`,
`dns-resolution-mcq`) not part of that original set, reused here as self-paced speed practice.

**Capstone note:** `services-mcq` and `expose-service-basics` are the exact pair the
pre-existing `rootnode-path.json` "networking" stage requires to unlock the Capstone assessment
— a separate, older mechanism from this course's own prerequisite chain (see
docs/ROOT_V1_CURRICULUM_MANIFEST.md). Do not mark this module optional/is_required=false without
re-checking that gate.

**Common mistake to watch for:** confusing a NodePort's cluster-internal ClusterIP with the
node-level port it also opens — the DNS-resolution Lab is a good moment to have a student narrate
out loud which address they expect to work from where.