Practice English vocabulary for Kubernetes networking: Services, Ingress, NetworkPolicy, CoreDNS, pod CIDR, and service CIDR concepts.
0 / 5 completed
1 / 5
A Kubernetes Service makes a pod reachable using an internal cluster IP address. Which phrase is correct?
'The Service exposes the pod on ClusterIP' means the Service creates a stable internal IP address that other pods use to reach this pod. ClusterIP is the default Service type.
2 / 5
External HTTP requests arrive at the cluster and are directed to different backend Services based on URL paths. What handles this?
'The Ingress routes external traffic to Services' — an Ingress resource defines HTTP routing rules that direct incoming traffic to the correct backend Services based on host or path.
3 / 5
A Kubernetes policy prevents certain pods from communicating with each other. Which phrase describes this?
'NetworkPolicy restricts pod-to-pod traffic' — a NetworkPolicy resource defines rules that limit which pods can communicate with each other, enforcing network segmentation.
4 / 5
A pod in the cluster looks up a Service name like 'my-service.my-namespace.svc.cluster.local'. What resolves this?
'CoreDNS resolves service names' — CoreDNS is the cluster DNS server in Kubernetes. It translates Service names into ClusterIP addresses that pods can connect to.
5 / 5
The cluster administrator is planning IP address ranges for pods and for Services separately. What are these ranges called?
'Pod CIDR and service CIDR' are the two separate IP address ranges in Kubernetes. Pod CIDR assigns IPs to pods; service CIDR assigns IPs to Services. CIDR stands for Classless Inter-Domain Routing.