Final answer:
To create an NFS shared folder on a cluster, you need to install the File Services role, the Server for NFS role service, and the Failover Clustering feature on each cluster node. Hence, all of the listed items are required.
Step-by-step explanation:
To create an NFS shared folder on a cluster, you need to install specific services and features on each cluster node. These include:
- The File Services role - This role includes services related to file sharing over the network. It is a prerequisite for setting up NFS sharing.
- The Server for NFS role service - This role service is specifically targeted for enabling NFS protocol support in Windows Server environments. It is required to share a folder over NFS.
- The Failover Clustering feature - This feature allows multiple servers to work together to provide high availability and, in this context, is necessary for the NFS share to be continuously available, even in the event of a node failure.
Therefore, all of the above options are necessary for creating an NFS shared folder on a cluster.