CCNA FAQ: Data Link Networking Concepts Q1. Which of the following is the IEEE standard for token ring? A. 802.2 B. 802.3a C. 802.3u D. 802.5 Answer: D. IEEE 802.5 defines token ring. Answers A, B, and C are incorrect because IEEE 802.2 defines LLC, 802.3a defines ethernet, and 802.3u defines Fast Ethernet. Q2. ANSI X3T9.5 is the specification for which LAN … [Read more...]