CCNA Exploration 3, Chapter 7. “Basic Wireless Concepts and Configuration”
Worksheet CISCO Networking Academy
Name:
1. The IEEE has adopted the 802 LAN/MAN portfolio of computer network
architecture standards. The two dominant 802 working groups are
802.___ Ethernet and 802.____ wireless LAN.
2. Summarize the important differences, advantages, and disadvantages of WLANs
using RF as opposed to wired LANs using cable for connectivity:
3. Wired LANs rely on collision _______________technology (CSMA/CD) whereas
WLANs rely on collision ___________________avoidance (CSMA/CA).
4. What is the most important way in which IEEE 802.11a differs from 802.11b and
802.11g?
5. List the data rates for each of the following WLAN standards:
a. 802.11a
b. 802.11b
c. 802.11g
d. 802.11n
6. List the Pros and Cons of each WLAN standard:
a. 802.11a
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CCNA Exploration 3, Chapter 7. “Basic Wireless Concepts and Configuration”
Worksheet CISCO Networking Academy
b. 802.11b
c. 802.11g
d. 802.11n
7. List two modulation techniques and briefly state the difference between them:
8. List and briefly summarize the three key organizations influencing WLAN
standards:
9. What are the three roles that a wireless router typically performs simultaneously?
10. Briefly explain the different modes that a wireless network device can operate in:
11. Explain what an SSID is:
12. The 2.4 GHz band is broken down into ______ channels for North America and
_____ channels for Europe. These channels have a center frequency separation
of only __________ and an overall channel bandwidth (or frequency occupation)
of 22 MHz.
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CCNA Exploration 3, Chapter 7. “Basic Wireless Concepts and Configuration”
Worksheet CISCO Networking Academy
13. Best practices for WLANs that require multiple access points are set to use
_______________________ channels. If there are three adjacent access points,
use channels ___, ____, and _______. If there are just two, select any two that
are _________ channels apart.
14. Explain what a BSS is:
15. What is meant by an “ad hoc” topology?
16. Explain what an ESS is:
17. Explain what a common distribution system is:
18. Explain what a beacon is:
19. Explain what a probe is and the two types of probe requests a client may send:
20. List considerations that would determine the number of users a WLAN can
support:
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CCNA Exploration 3, Chapter 7. “Basic Wireless Concepts and Configuration”
Worksheet CISCO Networking Academy
21. List and briefly describe the three major categories of threat that lead to
unauthorized WLAN access to an enterprise network:
22. Describe what is meant by a “Rogue Access Point” and the problems it can
cause:
23. Describe a “Man in the Middle” attack and why it is a significant threat in a
WLAN:
24. Define and briefly describe the WEP protocol:
25. Define and briefly describe the WPA protocol:
26. Define and briefly describe 802.11i/WPA2:
27. Summarize the enterprise WLAN EAP authentication process:
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CCNA Exploration 3, Chapter 7. “Basic Wireless Concepts and Configuration”
Worksheet CISCO Networking Academy
28. Define and describe TKIP:
29. Define and describe AES:
30. List and describe various types of PSKs you might see when configuring a
Linksys wireless router:
31. List the three-step method for controlling WLAN access:
32. What is the default IP address of a Linksys wireless access point, such as the
WRT300N?
33. What is the default username and password of a Linksys wireless access point,
such as the WRT300N?
34. List the screens and steps you would use to configure basic security on a Linksys
wireless access point, such as the WRT300N:
35. List the seven wireless security modes supported by the WTR300N:
36. What is the difference between a “personal” security mode and an “enterprise”
security mode?
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CCNA Exploration 3, Chapter 7. “Basic Wireless Concepts and Configuration”
Worksheet CISCO Networking Academy
37. List the first three steps in a systematic approach to WLAN troubleshooting:
38. Under what two circumstances only should you upgrade the firmware on a
wireless access point?
39. What is the most likely cause if users report connectivity issues in the area
between access points in an extended service set WLAN?
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