Answers for Interconnecting Cisco Networking Devices (ICND) Practice Questions -Module 3
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1. What is the most tangible benefit of wireless implementations? |
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cost reduction |
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increased mobility |
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better productivity |
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improved security |
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2. What method does a WLAN use to control transmissions? |
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CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance) |
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CSMA/CD (Carrier Sense Multiple Access with Collision Detection) |
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CSMA/CR (Carrier Sense Multiple Access with Collision Rejection) |
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CSMA/CW (Carrier Sense Multiple Access with Collision Weighting) |
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3a. Occurs when radio frequency (RF) waves bounce off metal or glass surfaces. |
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Absorption |
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Reflection |
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Scattering |
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3b. Occurs when RF waves are soaked up by walls. |
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Absorption |
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Reflection |
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Scattering |
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3c. Occurs when RF waves strike an uneven surface and are reflected in many directions. |
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Absorption |
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Reflection |
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Scattering |
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4. Which regulatory agency controls the 801.11 standard that governs WLANs?
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Wi-Fi Alliance |
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IEEE |
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EMA |
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WISC |
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5. Which organization offers certification for interoperability between vendors of 802.11 products?
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Wi-Fi |
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IEEE |
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EMA |
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WISC |
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6. Which three are the unlicensed bands used by WLANs? (Choose Three)
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2.4-MHz band |
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900-MHz band |
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2.4-GHz band |
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5-GHz band |
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900-GHz band |
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7. Which two of the 802.11 standards has the highest possible data rates? (Choose two)
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802.11 |
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802.11a |
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802.11b |
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802.11d |
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802.11g |
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8. Which 802.11 standard transmits using the 5-Ghz band?
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802.11 |
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802.11a |
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802.11b |
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802.11d |
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802.11g |
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9. Which is true as related to the Wi-Fi Alliance organization?
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It is a global standards organization that controls the compatibility of Wi-Fi products |
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It operates only in the United States of America and ensures the compatibility of Wi-Fi products |
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It is a global, nonprofit industry trade association devoted to promoting the growth and acceptance of wireless LANs |
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It is a global, nonprofit industry trade association devoted to promoting the installation of wireless LANs in retail locations |
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10. What is a rogue AP?
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An AP that has an open WEP key |
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An AP that is broadcasting its SSID |
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An unsecured AP that has been placed on a WLAN |
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An AP that has had a hardware failure that causes it to endlessly broadcast its SSID |
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11. Which three are the steps to secure a WLAN? (Choose Three)
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Encryption for providing privacy and confidentiality |
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Authentication to ensure that legitimate clients and users access the network via trusted access points |
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Controls transmit power to limit the AP access range to the property boundaries of the parent organization |
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Protection from security risks and availability with intrusion detection and intrusion protection systems for WLANs |
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12. Which standard provides the strongest level of WLAN security?
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EAP |
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WEP |
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WPA |
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802.11i/WPA2 |
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13. What factor determines which AP a client will associate with?
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the AP with the lowest SSID |
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the AP with the highest SSID |
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the AP whose SSID is received first |
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the AP that is received with the strongest signal |
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14. When using 802.11X, how is the client authenticated?
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The client is authenticated against a local database stored on the AP |
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The access point forwards all network traffic to the server where it is either authenticated or blocked |
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The access point encapsulates any 802.1X traffic bound for the authentication server and sends it to the server |
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The client encapsulates the 802.1X authentication traffic before sending it to the AP. This causes the AP to forward it to the server |
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15. Which is true when comparing WPA and WPA2?
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WPA uses pre-shared keys while WPA 2 uses PSK |
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WPA uses EAP authentication while WPA 2 uses 802.11X |
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WPA uses a personal mode while WPA 2 uses an enterprise mode |
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WPA uses TKIP/MIC encryption while WPA 2 uses AES-CCMP encryption |
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16a. Mobile clients connect directly without an intermediate access point
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Ad hoc mode |
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Basic Service Set (BSS) |
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Extended Services Set (ESS) |
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16b. The communication devices use a single access point for connectivity to each other or to wired network resources |
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Ad hoc mode |
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Basic Service Set (BSS) |
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Extended Services Set (ESS) |
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16c.The wireless topology is two or more service sets connected by a distribution system (DS) or commonly a wired infrastructure.
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Ad hoc mode |
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Basic Service Set (BSS) |
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Extended Services Set (ESS) |
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17. What does the physical area of radio frequency coverage provided by an access point define?
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the RF service area |
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the basic service area |
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the ad hoc service area |
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the extended services area |
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18. When implementing extended service areas, how much overlap is suggested?
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5 to 10 percent |
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10 to 15 percent |
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15 to 20 percent |
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25 to 30 percent |
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19. What technique allows a client to communicate while moving?
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the ability to shift data rates |
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the ability to vary transmit levels |
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the ability to match the transmit level to the receive level |
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the ability to perform error correction as the signal level changes |
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20. Which three are basic wireless access point parameters? (Choose Three)
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SSID |
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authentication |
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data exchange rates |
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Transmit band selection |
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RF channel with optional power |
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21. When implementing a WLAN, when should you use WEP?
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Only if there is an AAA server available |
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When you need the increased security of WEP |
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When you are planning to enable 802.11x authentication |
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Only if the hardware equipment does not support WPA |
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22a. full feature supplicant for both wired and wireless client |
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WZC |
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Cisco Compatible Extension |
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Cisco Secure Services Client |
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22b. Windows operating systems basic wireless supplicant client |
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WZC |
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Cisco Compatible Extension |
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Cisco Secure Services Client |
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22c. more advance wireless client features than those of native operating system
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WZC |
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Cisco Compatible Extension |
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Cisco Secure Services Client |
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15274 participants so far |
Number answered correctly: 21 out of 28 |
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