Guide to Networking Essentials, 8th ed., ISBN 9780357118283
Chapter 4 Solutions-1
Chapter 4 Solutions
Review Questions
1. Which of the following is a common characteristic of a networking medium?
(Choose all that apply.)
c. Broadband rating
2. Which of the following types of fiber-optic connectors provides high density and
requires only one connector for two cables?
b. ST
d. RJ–45
3. Which of the following conditions requires cables not to exceed a recommended
maximum length?
a. Diminution
b. Capacitance
4. Which of the following is the process for representing bit signals on the medium?
a. Encryption
d. Decoding
5. What happens to signals as they travel the length of the medium?
a. They decode.
b. They amplify.
Guide to Networking Essentials, 8th ed., ISBN 9780357118283
Chapter 4 Solutions-2
6. Which of the following is UTP susceptible to? (Choose all that apply.)
c. Signal enhancement
d. LEDs
7. The space between a false ceiling and the true ceiling where heating and cooling air
circulates is called the ______________.
a. Duct-equivalent airspace
b. Conduit
8. What type of connector is used most commonly with TP network wiring?
a. RJ–11
d. MT–RJ
9. You have been hired to install a network at a large government agency that wants to
reduce the likelihood of electronic eavesdropping on its network. What type of cable
is most resistant to eavesdropping?
a. UTP
b. STP
10. Which of the following is a characteristic of unshielded twisted–pair cable? (Choose
all that apply.)
a. Consists of four wires
b. Commonly used in physical bus topologies
11. Which of the following is a characteristic of fiber-optic cabling? (Choose all that
apply.)
b. Requires only a single strand of fiber for network connections
d. Has low bandwidth
12. You’re preparing to install a conventional Ethernet network in your new office
building, but your boss tells you to be ready to handle a switchover to 1 Gbps
Ethernet next year. What types of cable could you install? (Choose all that apply.)
a. Cat 5
c. Cat 4
e. Coax
13. When two cables run side by side, signals traveling down one wire might interfere
with signals traveling on the other wire. What is this phenomenon called?
a. RFI
c. Impedance
14. What characteristic of twisted-pair cabling helps mitigate the effects of crosstalk?
b. Copper conductors
d. 100–ohm impedance
15. Which cabling category is specified for 25GBaseT and 40GBaseT networks?
a. Cat 6a
c. Cat 7a
16. Which of the following is a wiring standard for twisted-pair cable connections?
(Choose all that apply.)
a. IEEE 802.3a
c. IEEE 802.3b
17. Which of the following is a component of a structured cabling system? (Choose all
that apply.)
b. RJ-11 plugs
c. Coax cable
18. Where are you most likely to find backbone cabling? (Choose all that apply.)
b. In the work area
d. Connecting a work area to an IDF
19. Which of the following is a tool needed to make a patch cable? (Choose all that
apply.)
a. 110 punchdown tool
d. RJ-45 jack
20. Which type of connection is most likely to require a crossover cable?
b. Hub to router
c. Router to switch
21. Which UTP limitations can be solved by fiber-optic cable? (Choose all that apply.)
c. Installation cost
22. How many strands of fiber-optic cable are typically used for a network connection?
a. 1
c. 4
23. Which statement is true about fiber-optic cables?
a. MMF uses lasers and has a thicker core.
c. MMF uses LEDs and has a thinner core.
24. When might you want to use a rollover cable?
a. To connect a PC to another PC
b. To connect a router to a switch
25. Which of the following wireless technologies does the original 802.11b wireless
standard use?
a. Infrared
b. Narrowband radio
Guide to Networking Essentials, 8th ed., ISBN 9780357118283
Chapter 4 Solutions-6
Hands-On Projects
Hands-On Project 4-1
Step 7: You find patch cables in the work area, where they connect a NIC to a wall jack that
Hands-On Project 4-2
Step 6: The run of cable from a wall jack to a patch panel is called horizontal wiring.
Challenge Labs
Challenge Lab 4-1
• How is a 1000BaseT crossover cable different from a 100BaseT crossover cable?
• How did you verify that the devices connected at 1000BaseT?
Challenge Lab 4-2
• Why might you need a rollover cable? To connect to a Cisco device’s command-line
Case Projects
Case Project 4-1
A. If any kind of conductive cable has to pass through an interference-heavy environment—and
the shop floor at XYZ sounds extremely “noisy”—it must be routed through metal conduit to
Guide to Networking Essentials, 8th ed., ISBN 9780357118283
Chapter 4 Solutions-7
C. Given that most interfloor gaps in office buildings are seldom more than 20 feet, the maximum
distance from the 8th floor to the 10th floor is around 60 feet. Figuring an additional 40 feet at
Case Project 4-2
Whenever cables go through the ground, differences in ground potential between one location and
another can cause current to flow. Because this interferes with network communication or even
Case Project 4-3
The answer is a because the proposed solution delivers the required results and both optional