802.11i relates to which security standard, and which is commonly used today?

• A. 802.11i is WPA3; older standard is WEP
• B. 802.11i is not related to wireless security
• C. 802.11i refers to WPA2; WPA3 is the current stronger standard
• D. 802.11i is WPA-Enterprise

Answer: (C)

802.11i defines the security framework used for Wi‑Fi networks, and it became WPA2. It introduced stronger encryption with AES-based CCMP and improved authentication via 802.1X, replacing the weaker WEP/TKIP setup and providing better data integrity and key management. Because of those improvements, WPA2 became the dominant wireless security standard for many years and is still widely used today. WPA3 exists as the newer, stronger successor, offering even tighter security and easier access for devices, but many networks continue to run WPA2 due to compatibility. The other choices mix up the relationship: WEP is the old, insecure predecessor; 802.11i is indeed about wireless security; and WPA-Enterprise is a deployment mode within the WPA2/WPA3 framework rather than the specific standard defined by 802.11i.