54 Kubernetes · Networking questions from the DevOps & SRE bank, written for Indian campus drives and tech interviews. Every question has a verified answer and an AI-tutor explanation on placd.
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A.a spec controlling allowed ingress and egress traffic between pods
B.a Service type that exposes the service on a static port on every node
C.a Service type that provisions an external cloud load balancer for the service
D.a stable virtual IP and DNS name that load-balances traffic to a set of pods
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2. Which term means: "a stable virtual IP and DNS name that load-balances traffic to a set of pods"?
Junior
A.Service
B.NodePort
C.Service mesh
D.kube-proxy
Answer + AI explanation with Pro
3. Which statement is correct?
Junior
A.Service — the default Service type exposing the service on an internal cluster-only IP
B.Service — an infrastructure layer (e.g. Istio, Linkerd) handling service-to-service traffic, mTLS, and observability via sidecars
C.Service — the successor to Ingress providing role-oriented, extensible L4/L7 traffic routing
D.Service — a stable virtual IP and DNS name that load-balances traffic to a set of pods
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4. What is ClusterIP?
Junior
A.an infrastructure layer (e.g. Istio, Linkerd) handling service-to-service traffic, mTLS, and observability via sidecars
B.the default Service type exposing the service on an internal cluster-only IP
C.a Service with no cluster IP that returns pod IPs directly for stateful discovery
D.the cluster's DNS server that resolves service and pod names
Answer + AI explanation with Pro
5. Which term means: "the default Service type exposing the service on an internal cluster-only IP"?
Junior
A.LoadBalancer
B.ClusterIP
C.Headless Service
D.CNI plugin
Answer + AI explanation with Pro
6. Which statement is correct?
Junior
A.ClusterIP — the default Service type exposing the service on an internal cluster-only IP
B.ClusterIP — the successor to Ingress providing role-oriented, extensible L4/L7 traffic routing
C.ClusterIP — a Service with no cluster IP that returns pod IPs directly for stateful discovery
D.ClusterIP — a Service type that exposes the service on a static port on every node
Answer + AI explanation with Pro
7. What is NodePort?
Junior
A.the default Service type exposing the service on an internal cluster-only IP
B.an API object managing external HTTP/HTTPS routing to services based on host and path rules
C.a Service with no cluster IP that returns pod IPs directly for stateful discovery
D.a Service type that exposes the service on a static port on every node
Answer + AI explanation with Pro
8. Which term means: "a Service type that exposes the service on a static port on every node"?
Junior
A.Headless Service
B.CNI plugin
C.CoreDNS
D.NodePort
Answer + AI explanation with Pro
9. Which statement is correct?
Junior
A.NodePort — the node component that programs network rules to implement Service load balancing
B.NodePort — an infrastructure layer (e.g. Istio, Linkerd) handling service-to-service traffic, mTLS, and observability via sidecars
C.NodePort — a Service type that exposes the service on a static port on every node
D.NodePort — a spec controlling allowed ingress and egress traffic between pods
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10. What is LoadBalancer?
Junior
A.a Service type that provisions an external cloud load balancer for the service
B.the cluster's DNS server that resolves service and pod names
C.the node component that programs network rules to implement Service load balancing
D.a Service type that exposes the service on a static port on every node
Answer + AI explanation with Pro
11. Which term means: "a Service type that provisions an external cloud load balancer for the service"?
Junior
A.Ingress
B.NodePort
C.CoreDNS
D.LoadBalancer
Answer + AI explanation with Pro
12. Which statement is correct?
Junior
A.LoadBalancer — an infrastructure layer (e.g. Istio, Linkerd) handling service-to-service traffic, mTLS, and observability via sidecars
B.LoadBalancer — a Service type that provisions an external cloud load balancer for the service
C.LoadBalancer — the successor to Ingress providing role-oriented, extensible L4/L7 traffic routing
D.LoadBalancer — the default Service type exposing the service on an internal cluster-only IP
Answer + AI explanation with Pro
13. What is Ingress?
Junior
A.the default Service type exposing the service on an internal cluster-only IP
B.the cluster's DNS server that resolves service and pod names
C.the successor to Ingress providing role-oriented, extensible L4/L7 traffic routing
D.an API object managing external HTTP/HTTPS routing to services based on host and path rules
Answer + AI explanation with Pro
14. Which term means: "an API object managing external HTTP/HTTPS routing to services based on host and path rules"?
Junior
A.Headless Service
B.CNI plugin
C.NodePort
D.Ingress
Answer + AI explanation with Pro
15. Which statement is correct?
Junior
A.Ingress — an API object managing external HTTP/HTTPS routing to services based on host and path rules
B.Ingress — a Service type that exposes the service on a static port on every node
C.Ingress — the successor to Ingress providing role-oriented, extensible L4/L7 traffic routing
D.Ingress — a stable virtual IP and DNS name that load-balances traffic to a set of pods
Answer + AI explanation with Pro
16. What is CNI plugin?
Mid
A.a networking plugin implementing the Container Network Interface to wire pod connectivity
B.an API object managing external HTTP/HTTPS routing to services based on host and path rules
C.an infrastructure layer (e.g. Istio, Linkerd) handling service-to-service traffic, mTLS, and observability via sidecars
D.a Service type that exposes the service on a static port on every node
Answer + AI explanation with Pro
17. Which term means: "a networking plugin implementing the Container Network Interface to wire pod connectivity"?
Mid
A.Service
B.Service mesh
C.CNI plugin
D.NodePort
Answer + AI explanation with Pro
18. Which statement is correct?
Mid
A.CNI plugin — a Service with no cluster IP that returns pod IPs directly for stateful discovery
B.CNI plugin — the cluster's DNS server that resolves service and pod names
C.CNI plugin — a networking plugin implementing the Container Network Interface to wire pod connectivity
D.CNI plugin — an infrastructure layer (e.g. Istio, Linkerd) handling service-to-service traffic, mTLS, and observability via sidecars
Answer + AI explanation with Pro
19. What is CoreDNS?
Mid
A.the node component that programs network rules to implement Service load balancing
B.the cluster's DNS server that resolves service and pod names
C.a Service type that provisions an external cloud load balancer for the service
D.a Service type that exposes the service on a static port on every node
Answer + AI explanation with Pro
20. Which term means: "the cluster's DNS server that resolves service and pod names"?
Mid
A.CoreDNS
B.Ingress
C.LoadBalancer
D.kube-proxy
Answer + AI explanation with Pro
21. Which statement is correct?
Mid
A.CoreDNS — a stable virtual IP and DNS name that load-balances traffic to a set of pods
B.CoreDNS — the default Service type exposing the service on an internal cluster-only IP
C.CoreDNS — the cluster's DNS server that resolves service and pod names
D.CoreDNS — a Service type that provisions an external cloud load balancer for the service
Answer + AI explanation with Pro
22. What is Headless Service?
Mid
A.a Service type that exposes the service on a static port on every node
B.a Service with no cluster IP that returns pod IPs directly for stateful discovery
C.an infrastructure layer (e.g. Istio, Linkerd) handling service-to-service traffic, mTLS, and observability via sidecars
D.the default Service type exposing the service on an internal cluster-only IP
Answer + AI explanation with Pro
23. Which term means: "a Service with no cluster IP that returns pod IPs directly for stateful discovery"?
Mid
A.Headless Service
B.ClusterIP
C.NodePort
D.Ingress
Answer + AI explanation with Pro
24. Which statement is correct?
Mid
A.Headless Service — a Service with no cluster IP that returns pod IPs directly for stateful discovery
B.Headless Service — a networking plugin implementing the Container Network Interface to wire pod connectivity
C.Headless Service — a Service type that exposes the service on a static port on every node
D.Headless Service — the node component that programs network rules to implement Service load balancing
Answer + AI explanation with Pro
25. What is NetworkPolicy?
Mid
A.the default Service type exposing the service on an internal cluster-only IP
B.an infrastructure layer (e.g. Istio, Linkerd) handling service-to-service traffic, mTLS, and observability via sidecars
C.a spec controlling allowed ingress and egress traffic between pods
D.the node component that programs network rules to implement Service load balancing
Answer + AI explanation with Pro
26. Which term means: "a spec controlling allowed ingress and egress traffic between pods"?
Mid
A.CoreDNS
B.ClusterIP
C.NetworkPolicy
D.Headless Service
Answer + AI explanation with Pro
27. Which statement is correct?
Mid
A.NetworkPolicy — a spec controlling allowed ingress and egress traffic between pods
B.NetworkPolicy — a Service type that exposes the service on a static port on every node
C.NetworkPolicy — the cluster's DNS server that resolves service and pod names
D.NetworkPolicy — a networking plugin implementing the Container Network Interface to wire pod connectivity
Answer + AI explanation with Pro
28. What is Gateway API?
Senior
A.a Service type that exposes the service on a static port on every node
B.the successor to Ingress providing role-oriented, extensible L4/L7 traffic routing
C.the default Service type exposing the service on an internal cluster-only IP
D.a Service type that provisions an external cloud load balancer for the service
Answer + AI explanation with Pro
29. Which term means: "the successor to Ingress providing role-oriented, extensible L4/L7 traffic routing"?
Senior
A.NodePort
B.ClusterIP
C.Gateway API
D.CNI plugin
Answer + AI explanation with Pro
30. Which statement is correct?
Senior
A.Gateway API — the node component that programs network rules to implement Service load balancing
B.Gateway API — a Service type that provisions an external cloud load balancer for the service
C.Gateway API — the successor to Ingress providing role-oriented, extensible L4/L7 traffic routing
D.Gateway API — an infrastructure layer (e.g. Istio, Linkerd) handling service-to-service traffic, mTLS, and observability via sidecars
Answer + AI explanation with Pro
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