Implementing and Operating Cisco Data Center Core Technologies (DCCOR) — Question 159

Which NFS version uses the TCP protocol and needs only one IP port to run the service?

Answer options

• A. NFSv1
• B. NFSv2
• C. NFSv3
• D. NFSv4

Correct answer: D

Explanation

NFSv4 is the correct answer because it exclusively uses the TCP protocol and operates over a single port, simplifying firewall configurations. In contrast, NFSv1, NFSv2, and NFSv3 can use both TCP and UDP, and typically require multiple ports, which can complicate network setup.