Nutanix NCP-CN Exam With Confidence Using Practice Dumps

A bastion host in a dark site environment serves as a secure entry point for managing the NKP deployment, providing access to the cluster infrastructure without direct Internet connectivity. The NKPA course outlines the prerequisites for preparing a Linux VM as a bastion host, focusing on secure access and time synchronization, which are critical for air-gapped Kubernetes deployments.

Get or create SSH Keys (Option B):The bastion host requires SSH keys to enable secure, passwordless access to the NKP cluster nodes and other infrastructure components (e.g., Nutanix AHV hosts). The NKPA course specifies that SSH keys must be generated or obtained and configured on the bastion host to facilitate secure communication during deployment and management tasks. The Nutanix Cloud Native (NCP-CN) 6.10 Study Guide states: “For a bastion host in an NKP dark site deployment, ensure SSH keys are created or obtained to enable secure access to cluster nodes and infrastructure.” The engineer can generate SSH keys using ssh-keygen and distribute the public key to the target systems.

Enable NTP Service (Option D):Time synchronization is essential in Kubernetes clusters to ensure consistent logging, certificate management, and scheduling. In a dark site with no Internet access, the bastion host must be configured to synchronize time with an internal NTP (Network Time Protocol) server or act as an NTP server itself. The NKPA course emphasizes enabling the NTP service on the bastion host to maintain accurate time across the air-gapped environment. The NCP-CN 6.10 Study Guide notes: “Enable the NTP service on the bastion host to ensure time synchronization in a dark site NKP deployment, as Kubernetes requires accurate time for proper operation.” The engineer can enable NTP using commands like systemctl enable ntpd and configure it to use an internal time source.

Incorrect Options:

A. Install LDAP Server: LDAP is used for centralized authentication, but it is not a requirement for a bastion host in an NKP dark site deployment. The course focuses on SSH access instead.

C. Install Docker: While Docker is needed on Kubernetes nodes for container runtimes, the bastion host’s role is to provide secure access and management, not to run containers.

Comprehensive and Detailed Explanation From Exact Extract of Nutanix Kubernetes Platform Administration (NKPA) Course:

The NKPA course outlines the process of adding GPU-enabled worker nodes to an existing NKP-managed Kubernetes cluster, such as the production cluster in this scenario. The first step in this process is to ensure that a GPU-compatible OS image is available for the new worker nodes, as GPU support requires specific drivers and configurations (e.g., NVIDIA drivers) that are not included in standard OS images.

The correct first step is tocreate a GPU-compatible OS imageusing the command:

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nkp create image nutanix --gpu \

--gpu-name=${GPU_NAME} \

--cluster=${NUTANIX_CLUSTER_NAME} \

--endpoint=${NUTANIX_PC_ENDPOINT} \

--subnet=${NUTANIX_SUBNET} ubuntu-22.04

(Option D). This command uses the NKP CLI to create a machine image based on Ubuntu 22.04, tailored for Nutanix AHV infrastructure (nutanix) with GPU support enabled (--gpu). The --gpu-name flag specifies the GPU type (e.g., NVIDIA GPU model), and other parameters define the Nutanix cluster, Prism Central endpoint, and subnet for image creation. The resulting image includes the necessary NVIDIA drivers and dependencies, making it suitable for GPU-enabled worker nodes. The Nutanix Cloud Native (NCP-CN) 6.10 Study Guide states: “Before adding GPU-enabled workers to an NKP cluster on Nutanix, the first step is to create a GPU-compatible OS image using nkp create image nutanix --gpu, ensuring the image includes the required GPU drivers for the target infrastructure.”

This image is then used in subsequent steps (like Option A) to create a node pool with GPU-enabled workers. Without this image, the node pool creation in Option A would fail due to the lack of a suitable --vm-image.

Incorrect Options:

A. Create a nodepool of workers with GPU: This step requires a pre-existing GPU-compatible OS image (specified via --vm-image). Since the question does not indicate that such an image already exists, creating the image (Option D) must happen first.

B. Add the GPU Operator to the new workers: The NVIDIA GPU Operator can be installed to manage GPU resources, but this step occurs after the GPU-enabled workers are added to the cluster, not as the first step.

C. Configure Multi-Instance GPU (MIG): MIG configuration is an advanced GPU setup step that occurs after the workers are added and the GPU Operator is installed, not as the first step.

The documentation confirms that when a new license is activated to upgrade to a higher tier, users mustlog out and log back infor the license changes to take effect. This ensures that updated entitlements are loaded into the UI and CLI environment.

Exact extract from documentation:

“After applying a new license for a higher-tier product, log out and log back in to see and activate the newly available features.”