NFS uses which port number?

NFS uses which port number?

• A. 2049
• B. 3306
• C. 3389
• D. 8080

Answer: (A)

NFS is an RPC-based file sharing service, and its server is reached on port 2049. The NFS daemon listens on this port so clients can mount and access remote shares. In practice, RPC can involve a portmapper (rpcbind) that may map services to dynamic ports, but 2049 is the standard port associated with the NFS service itself. Other ports listed are used by entirely different services: 3306 is MySQL, 3389 is Remote Desktop Protocol, and 8080 is a common alternative HTTP port. That makes 2049 the correct and most specific port for NFS.

NFS is an RPC-based file sharing service, and its server is reached on port 2049. The NFS daemon listens on this port so clients can mount and access remote shares. In practice, RPC can involve a portmapper (rpcbind) that may map services to dynamic ports, but 2049 is the standard port associated with the NFS service itself.

Other ports listed are used by entirely different services: 3306 is MySQL, 3389 is Remote Desktop Protocol, and 8080 is a common alternative HTTP port. That makes 2049 the correct and most specific port for NFS.