a. Compare relative cost and maximum propagation distance for multimode and single-mode fiber.

14a.) Fiber that has a core diameter of 8.3 microns is _______.

a. Multimode fiber

b. Single-mode fiber

c. Full duplex fiber

d. Exceptionally fast

b. Why does multimode fiber dominate LAN installations?

14b.) The longest transmission distances are possible with _______.

a. USB

b. UTP

c. Single-mode fiber

d. Multimode fiber

14b1.) Which of the following is used most heavily in LANs for fiber transmission links?

a. Modal bandwidth fiber

b. 1.550 n m fiber

c. Single-mode fiber

d. Multimode fiber

c. For LAN fiber, what is the dominant signal wavelength?

14c.) Which of the following is used most heavily in LANs for fiber transmission links?

a. 850 nm multimode fiber

b. 850 nm single-mode fiber

c. 850 nm multimode-mode fiber

d. 1,550 nm single-mode fiber

d. Why does this wavelength dominate?

14d.) 850 nm multimode fiber is used heavily in LANs _______.

a. To keep cost low

b. To have the longest transmission distances

c. Both A and B

d. Neither A nor B