Module 9 – Exam 1. What three non-overlapping channels can be used in the 2.4GHz band? Channel 6 Channel 2 Channel 1 Channel 5 Channel 10 Channel 11 Question 1 of 17 2. Which of the following 802.11 standards uses MIMO? 802.11a 802.11g 802.11b 802.11n Question 2 of 17 3. The IEEE 802.11 standard uses control frames to control access to the medium. Which of the following are control frames? Acknowledgement (ACK) Association request frame Clear To Send (CTS) Beacon frame Association response frame Ready (Request) To Send (RTS) Probe request frame Probe response frame Question 3 of 17 4. What allows some timing critical functions are managed within the Access Point and other functions are managed at the controller? WCS Split-MAC Architecture 802.11 LAP Question 4 of 17 5. Which of the following are advantages of implementing a WLAN over a wired LAN? Greater throughput Security Greater distance and reach Load Distribution Redundancy Lower monetary cost Flexibility Scalability Question 5 of 17 6. The LWAPP-enabled software allows APs to join either a controller that runs CAPWAP or LWAPP True False Question 6 of 17 7. Which of the following statements about the DCF are TRUE? The DCF Interframe Space (DIFS) is used to separate transmissions belonging to a single dialog The Short Interframe Space (SIFS) is used to separate transmissions belonging to a single dialog The DCF Interframe Space (DIFS) is used by a station that is ready to start a new transmission The Virtual Carrier Sense (VCS) allow 802.11 to control which traffic gets first access to the channel after carrier sense declares the channel to be free The interframe spaces (IFS) allow 802.11 to control which traffic gets first access to the channel after carrier sense declares the channel to be free The Short Interframe Space (SIFS) is used by a station that is ready to start a new transmission Question 7 of 17 8. Which of the following statements about the configuration of switch ports to support APs and WLCs is TRUE? Switch ports should be configured as TRUNK PORTS for LAP and WLC connectivity Switch ports should be configured as ACCESS PORTS for Autonoumous AP and WLC connectivity Switch ports should be configured as TRUNK PORTS for Autonomous AP and WLC connectivity Switch ports should be configured as TRUNK PORTS for LAP connectivity Switch ports should be configured as ACCESS PORTS for LAP connectivity Switch ports should be configured as ACCESS PORTS for LAP and WLC connectivity Question 8 of 17 9. Which of the following statements are FALSE in regards to 802.11? The 802.11 frame consists of a 32-bit MAC header, a variable length body, and 4-bit Frame Check Sequence (FCS) The 802.11 frame consists of a 32-byte MAC header, a variable length body, and 4-byte Frame Check Sequence (FCS) The IEEE 802.11 standards cover the operation of the LLC sublayer and the Physical layer of the OSI Model The Frame Control field indicates whether or not the frame is fragmented, whether or not encryption and authentication are being used The Sequence Control field indicates whether or not the frame is fragmented, whether or not encryption and authentication are being used The IEEE 802.11 standards cover the operation of the MAC sublayer and the Physical layer of the OSI Model Question 9 of 17 10. Which of the following statements are TRUE in regards to WLAN roaming? With inter-subnet roaming, the WLCs reside on different subnets With intra-controller roaming, the WLCs reside on different subnets With inter-subnet roaming, When traffic is sent to the client, it is received by the anchor controller, which then forwards the traffic to the foreign controller in an Ethernet-over-IP (EtherIP) tunnel Inter-subnet roaming results in asynchronous client routing With inter-controller roaming, the WLCs reside on different subnets Inter-subnet roaming results in asynchronous WLC routing With inter-subnet roaming, When traffic is sent to the client, it is received by the anchor controller, which then forwards the traffic to the foreign controller in a Lightweight Access Point Protocol (LWAPP) tunnel Question 10 of 17 11. Which of the following statements is TRUE in regards to LWAPP discovery messages? The LWAPP Layer 3 WLC discovery algorithm repeats until at least one WLC is found and joined Only the WLC validates the LAP during the discovery phase The LWAPP Layer 2 WLC discovery algorithm repeats until at least one WLC is found and joined The LAPs use the Layer 2 discovery algorithm only if the Layer 3 discovery method is not supported or if the Layer 3 discovery method fails Both the LAP and WLC validate each other during the discovery phase Only the LAP validates the WLC during the discovery phase The LAPs use the Layer 3 discovery algorithm only if the Layer 2 discovery method is not supported or if the Layer 2 discovery method fails Question 11 of 17 12. Click on the Exhibit. What additional configuration command is required to successfully implement Cisco IOS DHCP server to support the WLAN solution? The option 134 ascii “172.16.1.1” command The option 34 ascii “172.16.1.1” command The option 43 ascii “172.16.1.1” command The option 143 ascii “172.16.1.1” command Question 12 of 17 13. What two MAC Sublayer Coordination Functions are used by the 802.11 standards? DCF PCF NSF CTS ACF VCS RTS Question 13 of 17 14. Which of the following is FALSE in regards to the 802.11a and 802.11g standards? 802.11a equipment operates at 5GHz 802.11g supports S-Band ISM, OFDM and DSSS 802.11g equipment operates at 5GHz 802.11a supports S-Band ISM, OFDM and DSSS 802.11a is backward compatible with 802.11b 802.11g is backward compatible with 802.11b Question 14 of 17 15. Which of the following is NOT a valid Access Point mode? Local Mode LEAP Mode Sniffer Mode REAP Mode Rogue Detector Mode Question 15 of 17 16. What is used to address the wireless network hidden node problem? Clear To Send (CTS) Virtual Carrier Sense (VCS) Network Allocation Vector (NAV) Ready To Send (RST) Question 16 of 17 17. Which of the following statements is TRUE in regards to PCF and DCF? DCF is a contention-based mechanism PCF is a contention-free mechanism PCF is a contention-based mechanism DCF is located directly above PCF DCF is a contention-free mechanism PCF is located directly above DCF Question 17 of 17 Loading…
