Which port is NFS or IIS?

Which port is NFS or IIS?

• A. 389/TCP, UDP - LDAP port
• B. 1025/TCP - NFS-IIS
• C. 179/TCP - BGP port
• D. 137/TCP, UDP - NetBIOS name service

Answer: (B)

Understanding how services map to ports helps you identify what traffic belongs to which service. The question asks which option links a port to NFS or IIS. Among the choices, the one that lists a TCP port together with a label indicating NFS-IIS is the best pick. The other options tie well-known ports to LDAP, a routing protocol (BGP), and NetBIOS name service, which are not NFS or IIS. So that option stands out as the correct pairing in this set. For real-world context, know that NFS and IIS are distinct services with their own typical ports: NFS is associated with file sharing on a specific port, and IIS is the Windows web server commonly serving on HTTP/HTTPS ports. In practice, always verify current port mappings in your environment or documentation, since configurations can vary. A handy rule of thumb is to memorize standard associations like LDAP on its well-known port, BGP on its port, NetBIOS name service on its port, and HTTP/HTTPS for web services, while recognizing practice questions may use simplified or alternate mappings.

Understanding how services map to ports helps you identify what traffic belongs to which service. The question asks which option links a port to NFS or IIS. Among the choices, the one that lists a TCP port together with a label indicating NFS-IIS is the best pick. The other options tie well-known ports to LDAP, a routing protocol (BGP), and NetBIOS name service, which are not NFS or IIS. So that option stands out as the correct pairing in this set.

For real-world context, know that NFS and IIS are distinct services with their own typical ports: NFS is associated with file sharing on a specific port, and IIS is the Windows web server commonly serving on HTTP/HTTPS ports. In practice, always verify current port mappings in your environment or documentation, since configurations can vary. A handy rule of thumb is to memorize standard associations like LDAP on its well-known port, BGP on its port, NetBIOS name service on its port, and HTTP/HTTPS for web services, while recognizing practice questions may use simplified or alternate mappings.