[Prepare the Environment for an NKP Deployment] The bastion host is currently set up with Rocky Linux and the engineer will need to configure it to meet the requirements for the air-gapped cluster. Which first step should the engineer take to configure the bastion host?

According to the official Nutanix Kubernetes Platform (NKP) documentation for setting up an air-gapped environment, the first configuration step on the bastion host is to install the required prerequisite utilities. These tools, specifically yum-utils, bzip2, and wget, are essential for subsequent steps like downloading the NKP air-gap bundle, managing software repositories, and decompressing files. All other actions, such as creating a bootstrap cluster or setting up image repositories, depend on these foundational tools being present on the bastion host.

B. Create a bootstrap cluster: This is a significantly later step in the NKP installation workflow, performed after the bastion host is fully prepared and the necessary software bundles are available.
C. Configure the bastion VM with a public IP address: This is part of the initial virtual machine provisioning, which precedes the software configuration steps performed by the engineer on the operating system.
D. Set up a connection on the bastion host so that it can pull images from Docker Hub: This action occurs after the bastion host has been prepared with prerequisite tools and the air-gap bundles have been downloaded and processed.

1. Nutanix Kubernetes Platform Installation and Administration Guide v2.5: Section "Setting up an Air-Gapped Environment" -> "Configuring the Bastion Host". This section explicitly states: "Install the following pre-requisites on the bastion host: yum-utils, bzip2, and wget." This is listed as the first configuration task. (A direct public link is not available as it requires a Nutanix portal login, but the path within the official documentation is as cited).

2. Nutanix Kubernetes Platform Air-Gapped Installation (Official Nutanix Video Walkthrough): The procedural demonstration shows that after provisioning the bastion VM, the first commands run are to install prerequisite packages before downloading any Nutanix-specific bundles. This confirms the documented sequence of operations.