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Linux Foundation Kubernetes and Cloud Native Associate Sample Questions (Q144-Q149):

NEW QUESTION # 144
What is the purpose of the 'kubelet* component in Kubernetes?

A. It is responsible for storing and managing Kubernetes configurations and state.
B. It schedules Pods onto nodes based on resource availability and constraints.
C. It runs and manages containers on each node, ensuring their health and resource usage.
D. It manages the communication between the Kubernetes master and the nodes.
E. It manages the API server and provides access to Kubernetes resources.

Answer: C

Explanation:
The "kubelet• component in Kubernetes is responsible for running and managing containers on each node. It is the agent that communicates with the master and ensures that Pods are running as intended. Option 'A' is incorrect because that is the role of the kube-proxy and the API server. Option 'B' is incorrect because scheduling is handled by the scheduler. Option 'D' is incorrect because that is the role of the API server. Option 'E' is incorrect because configuration and state are managed by the etcd.

NEW QUESTION # 145
What is the purpose of the 'nodeSelector" field in a Pod's YAML definition?

A. To define the pod's image pull policy (Always, IfNotPresent, Never).
B. To specify the exact number of replicas for the pod.
C. To specify the pod's termination grace period.
D. To restrict the pod's scheduling to nodes with specific labels.
E. To define the pod's restart policy (Always, OnFailure, Never).

Answer: D

Explanation:
The •nodeSelectors field allows you to specify labels that the node must have in order for the pod to be scheduled on it. This provides a way to control where pods are placed based on node characteristics or roles.

NEW QUESTION # 146
Your Kubernetes cluster has a limited number of nodes, and you need to efficiently utilize those resources. You are deploying a highly scalable web application with multiple pods. What Kubernetes concept can help you optimize resource allocation and ensure pods are scheduled across all available nodes?

A. ResourceQuota
B. Tolerations
C. PodAntiAffinity
D. NodeSelector
E. Taints

Answer: B,C,D,E

Explanation:
These concepts help you optimize resource allocatiom 1 - NodeSelector Allows you to specify labels on nodes and match those labels in your pod definitions, ensuring pods are scheduled on nodes with desired characteristics. 2. PodAntiAffnity: Prevents pods from being scheduled on the same node or even within the same zone, promoting distribution across nodes. 3- Tolerations: Allow pods to tolerate taints applied to nodes. Taints are used to mark nodes as unsuitable for certain pods unless those pods have the corresponding tolerances. 4. Taints: Mark nodes with specific characteristics, preventing pods from scheduling on those nodes unless they have tolerations for those taints. ResourceQuota restricts resources at a namespace level, but not node-level scheduling.

NEW QUESTION # 147
You are running a multi-cluster Kubernetes environment with Istio deployed. You want to enable mutual TLS authentication between services across different clusters. You have already configured Istio's 'mutualTLS' setting in the control plane. What additional step is required to enforce this security measure for inter-cluster communication?

A. Deploy a dedicated Istio control plane for each cluster and configure cross-cluster communication
B. Deploy a dedicated Istio sidecar proxy in each cluster to handle inter-cluster communication
C. Configure the 'gateway' setting in Istio to allow only encrypted traffic between clusters
D. Create a separate Kubernetes namespace for inter-cluster communication and configure Istio within that namespace
E. Manually configure the 'istio.io/auth' annotation on all services in both clusters

Answer: E

Explanation:
While configuring 'mutualTLS' in the Istio control plane enables the security feature, you need to explicitly enable it for individual services by applying the 'istio.io/auth' annotation with 'peerAuthentication: mutualTLS: { mode. STRICT Y to each service. This ensures that services in both clusters will only communicate with each other over encrypted channels- Options B, C, D, and E are not directly related to enforcing mutual TLS authentication for inter-cluster communication.

NEW QUESTION # 148
What is container orchestration?

A. Using automation to manage containers
B. Adding code to a container image so it can run as a container
C. Packaging code and all of its dependencies into a single executable
D. Spinning a new containers to replace old ones

Answer: A

Explanation:
https://www.redhat.com/en/topics/containers/what-is-container-orchestration

NEW QUESTION # 149
......

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2025 Linux Foundation KCNA: Valid Kubernetes and Cloud Native Associate Valid Braindumps Ppt

Linux Foundation Kubernetes and Cloud Native Associate Sample Questions (Q144-Q149):

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KCNA Test Torrent & KCNA Learning Materials & KCNA Dumps VCE

2025 Linux Foundation KCNA: Valid Kubernetes and Cloud Native Associate Valid Braindumps Ppt

Linux Foundation Kubernetes and Cloud Native Associate Sample Questions (Q144-Q149):

Pass Guaranteed 2025 Linux Foundation Useful KCNA: Kubernetes and Cloud Native Associate Valid Braindumps Ppt

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