Information Technology Reference
In-Depth Information
Review the most important topics in the chapter, noted with the Key Topic icon in the
outer margin of the page. Table 3-12 lists a reference of these key topics and the page
numbers on which each is found.
Ta b l e 3 -1 2
Key Topics
Key Topic
Element
Description
Page
Ta ble 3 - 6
Comparison of copper, UTP, multimode fiber,
and single-mode fiber
89
List
Covers LAN devices, such as hubs, switches, and
routers
89
Summary
Covers best practices for the access, distribution,
and core layers
95
Print a copy of Appendix D, “Memory Tables,” (found on the CD), or at least the section
for this chapter, and complete the table s and lists from memor y. Appendix E, “Memor y Ta -
bles Answer Key,” also on the CD, includes completed tables and lists to check your work.
Define the following key terms from this chapter, and check your answers in the glossary:
CSMA/CD, 100BASE-TX, IEEE 802.3ab, EtherChannel, Layer 3 switches, access
layer, distribution layer, core layer
The answers to these questions appear in Appendix A. For more practice with exam for-
mat questions, use the exam engine on the CD-ROM.
1.
Tr ue or fals e: L ayer 2 s w itche s cont rol net work broadc asts.
2.
What technology can you use to limit multicasts at Layer 2?
3.
Tr ue or fals e: Packet mark ing is als o c alled color ing.
4.
Tr ue or fals e: Us u ally, the dist r ibut ion and core layer s are collap s ed in medium-s ize
networks.
