CCNA FAQ: Understanding Wireless Networking
Q1. Three agencies manage the standards and frequencies of wireless networks. List the names of these agencies and briefly describe their functions.
Q2. 802.11b/g is the more popular wireless standard worldwide. One of your fellow network administrators on staff states that 11 separate RF channels are available for use across your corporate network. Is this true? Should you use all 11 channels? Justify your response.
Q3. List the three RF spectrums that are considered unlicensed bands. Which wireless standards are associated with each?
Q4. Higher and lower frequencies on the RF spectrum provide different benefits. What are the benefits of higher frequencies (such as 2.4GHz and 5GHz) over lower frequencies?
Q5. List at least three business benefits of using wireless networking.
Q6. What Cisco-founded organization ensures compatibility between all 802.11 wireless vendor equipment?
D. Wi-Fi Alliance
Q7. Which of the following wireless standards use the 2.4GHz RF band? (Choose two)
Q8. 802.11 wireless standards use which of the following transmission methods?
A. CSMA/CD, half duplex
B. CSMA/CD, full duplex
C. CSMA/CA, half duplex
D. CSMA/CA, full duplex
Q9. How many wireless channels are available in the U.S.A. for the 2.4GHz band without overlapping frequencies?
Q10. When wireless technology uses a higher frequency, what factors must you consider? (Choose two)
A. The higher frequency will allow for higher throughput
B. The higher frequency will restrict throughput
C. The higher frequency has more range
D. The higher frequency has limited range
Q11. You are the network administrator for Widgets, Inc., a worldwide distributing organization. You are planning on setting up a new wireless network for the organization. Which of the following are considerations for the new wireless network?
A. The geographic location of the office
B. The radio frequencies currently in use at the office locations
C. The radio channels currently in use at the office locations
D. The wireless cell configuration on the access point
Q12. To provide for successful client roaming, how should wireless cells be configured?
A. Wireless cells should use the same RF band and channel
B. Wireless cells should use the same RF band but different channels
C. Wireless cells should use different RF bands but the same channel
D. Wireless cells should use different RF bands and channels
Q13. Which of the following are advantages of 802.11a over 802.11b? (Choose two)
A. Increased throughput
B. Increased range
C. More channel diversity
D. Support for more clients
Q14. You are deploying a wireless network at a new office location. The office happens to be located next to an apartment complex with many existing wireless access points using all available channels in the RF band. Which agency would handle this situation?
C. Wi-Fi Alliance
D. None of the above
transmitting at a higher-than-legal power or to change your company to the less-congested 5GHz band.
Q15. What is the largest cost savings that organizations typically find with wireless technology?
A. Elimination of stationary equipment
B. Minimized office space due to roaming users
C. Access to new cost-savings applications
D. Cable installation and management cost