An IEEE 802.11 WLAN security/encryption protocol is what?

• A. TKIP
• B. WEP
• C. WPA2
• D. AES-CCM

Answer: (A)

In 802.11 WLANs, security protocols evolve to fix the flaws of earlier methods while staying usable with existing hardware. TKIP was created as part of WPA to bridge from WEP to stronger protections. It creates per-packet keys (derived from a shared temporal key plus the sender’s address and packet sequence), uses RC4 for encryption, and includes a Message Integrity Code to detect tampering. These design choices address the key problems with WEP—key reuse and unsigned data integrity—without requiring new hardware. That transitional, compatibility-focused role is why TKIP is the best answer among the options for a WLAN security/encryption protocol. WEP is the old, insecure baseline; AES-CCM is the encryption mode used by WPA2 for stronger protection; WPA2 is the overall security standard, not a single protocol.