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Kubernetes-5
Question 1
Why are Kubernetes Services necessary when Pods already have IP addresses?
- A
Pod IPs are not routable
- B
Pod IPs change frequently due to Pod recreation
- C
Pod IPs cannot handle traffic
- D
Pod IPs are shared across nodes
Question 2
What is the primary role of a selector in a Kubernetes Service?
- A
Assign a ClusterIP to the Service
- B
Filter traffic at the ingress level
- C
Identify the set of Pods backing the Service
- D
Configure DNS records
Question 3
What happens when a Service is created without a selector?
- A
The Service becomes headless automatically
- B
Kubernetes creates Pods automatically
- C
The Service cannot receive traffic
- D
Endpoints must be managed manually via EndpointSlices
Question 4
Why were EndpointSlices introduced instead of using a single Endpoints object?
- A
To support encrypted traffic
- B
To reduce API server load by segmenting large endpoint sets
- C
To replace Services
- D
To allow multi-port Services
Question 5
Which Service type exposes Pods directly without allocating a ClusterIP?
- A
ExternalName
- B
NodePort
- C
LoadBalancer
- D
Headless
Question 6
In a NodePort Service, which component actually forwards traffic from the node port to Pod IPs?
- A
kube-proxy
- B
kube-scheduler
- C
API Server
- D
CoreDNS
Question 7
Why can a LoadBalancer Service behave differently in Minikube compared to a managed cloud cluster?
- A
Minikube blocks external traffic
- B
Minikube lacks a cloud provider integration for external load balancers
- C
Minikube uses only UDP
- D
Minikube does not support Services
Question 8
What is the advantage of using named ports instead of numeric targetPort values?
- A
Faster networking
- B
Improved security
- C
Decoupling Service configuration from container port numbers
- D
Automatic port discovery
Question 9
Which DNS record type is created when using an ExternalName Service?
- A
A record
- B
AAAA record
- C
SRV record
- D
CNAME record
There are 9 questions to complete.