7 questions / 10 random questions
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In Kubernetes, which resource is typically used to maintain the desired number of Pod replicas and handle rolling updates?
Answer: Deployment
A Deployment manages ReplicaSets to maintain the desired number of Pods and supports rolling updates and rollbacks for common workloads.
In Kubernetes, which resource provides a stable virtual IP or DNS name for a group of Pods and abstracts the communication target?
Answer: Service
A Service provides a stable network endpoint for Pods selected by labels, regardless of Pod replacement or rescheduling.
In Kubernetes, which resource is suitable for passing non-sensitive application settings to Pods?
Answer: ConfigMap
A ConfigMap is used to pass non-sensitive configuration data, such as configuration files and environment variables, to containers.
In Kubernetes, which resource is used to handle sensitive information such as passwords and tokens?
Answer: Secret
A Secret is the Kubernetes resource for sensitive information. In practice, RBAC, encryption, and external secret management should also be considered.
What is the main purpose of a Kubernetes livenessProbe?
Answer: To check whether a container is alive and restart it if it is unhealthy
A livenessProbe is a health check used to restart a container when the application becomes stuck or unhealthy. It has a different role from a readinessProbe.
In Kubernetes, which resource is commonly used as an HTTP/HTTPS entry point that routes traffic to Services based on host names or paths?
Answer: Ingress
An Ingress defines external HTTP/HTTPS routing rules. An Ingress Controller is required to make those rules work in a cluster.
In Kubernetes, what is used as the runtime identity assigned to a Pod for RBAC and cloud integration?
Answer: ServiceAccount
A ServiceAccount acts as the identity a Pod uses when accessing the Kubernetes API or external cloud resources.