UGC NET CS 2009-June-Paper-2
May 23, 2024UGC NET CS 2013 Dec-paper-2
May 23, 2024Question 5928 – UGC NET CS 2009-June-Paper-2
The Fiber Distributed Data Interface(FDDI) uses :
Correct Answer: B
Question 7 Explanation:
→ FDDI uses a multimode fiber because the cost of single mode fiber is not justified for networks running at only 100 Mbps.
→ It also uses LEDs instead of Lasers not only because of the lower cost but also because FDDI may sometimes be used to connect directly to user workstations, and safety against exposure to LASER radiation is difficult to maintain in that case.
→ It also uses LEDs instead of Lasers not only because of the lower cost but also because FDDI may sometimes be used to connect directly to user workstations, and safety against exposure to LASER radiation is difficult to maintain in that case.
single mode fibers and LEDs
multimode fibers and LEDs
single mode fibers and ILDs
multimode fibers and ILDs