Kubernetes Interview Questions and Answers
Question - 51 : - What are Secrets in Kubernetes?
Answer - 51 : -
Secrets are sensitive information like login credentials of the user. They are objects in Kubernetes that stores sensitive information like username and password after performing encryption.
Question - 52 : - What do you mean by persistent volume?
Answer - 52 : -
A persistent volume is a storage unit that is controlled by the administrator. It is used to manage an individual pod in a cluster.
Question - 53 : - What are the objectives of the replication controller?
Answer - 53 : -
The objectives of the replication controller are:
- It is responsible for controlling and administering the pod lifecycle.
- It monitors and verifies whether the allowed number of replicas are running or not.
- The replication controller helps the user to check the pod status.
- It enables to alter a pod. The user can drag its position the way interested in it.
Question - 54 : - What are the labels in Kubernetes?
Answer - 54 : -
Labels are a collection of keys that contain some values. The key values are connected to pods, replication controllers, and associated services. Generally, labels are added to some object during its creation time. They can be modified by the users at run time.
Question - 55 : - What is Kubernetes proxy service?
Answer - 55 : -
Kubernetes proxy service is a service which runs on the node and helps in making it available to an external host.
Question - 56 : - What is the Kubernetes Network Policy?
Answer - 56 : -
Network Policy defines how the pods in the same namespace would communicate with each other and the network endpoint.
Question - 57 : - Explain PVC
Answer - 57 : -
The full form of PVC stands for Persistent Volume Claim. It is storage requested by Kubernetes for pods. The user does not require to know the underlying provisioning. This claim should be created in the same namespace where the pod is created.
Question - 58 : - What are the types of Kubernetes Volume?
Answer - 58 : -
The types of Kubernetes Volume are:
- EmptyDir
- GCE persistent disk
- Flocker
- HostPath
- NFS
- ISCSI
- rbd
- PersistentVolumeClaim
- downwardAPI
Question - 59 : - What is Container Creating pod?
Answer - 59 : -
A Container Creating pod is one that can be scheduled on a node but can’t start up properly.
Question - 60 : - What are the benefits of Kubernetes?
Answer - 60 : -
With the container orchestration tool Kubernetes, it becomes extremely easy to handle containers. We can respond to customer demands by deploying the applications faster and in a more predictable manner.
Here, we will list some of the benefits of Kubernetes:
- Automatic scheduling
- Automated rollback
- Horizontal scaling
- Auto-healing capabilities