In the Company wireless LAN，  what is the function of the Service Set Identifier （SSID）？（）

A . claim B . indemnify C . recover D . settle

A .  The processing of 802.11 data and management protocols and access point capabilities is  distributed between a lightweight access point and a centralized WLAN controller. B .  LWAPP advertises its WDS capability and participates in electing the best WDS device for the  wireless LAN. C .  LWAPP aggregates radio management forward information and sends it to a wireless LAN  solution engine. D .  LWAPP authenticates all access points in the subnet and establishes a secure communication  channel with each of them. E .  None of the other alternatives apply

A . ongoing support handoff meeting B . staff training C . detailed design development D . staging and system migratio

A . change management B . configuration management C . incident management D . acceptance test pla

A . controller-based mode only B . either standalone mode or controller-based mode C . standalone mode only

A .  Reduction of processing in wireless controllers B .  Distributed approach to authentication， encryption， and policy enforcement C .  Access point discovery， information exchange， and configuration D .  Provides security by blocking communication between access points and wireless clients E .  None of the other alternatives apply.

A .  In the autonomous access point solution， control is provided by the WLAN controller. B .  In the lightweight access point solution， WLAN management is provided by the WLAN Control  System （WCS）. C .  In the autonomous access point solution， control is provided by the WDS （Wireless Domain  Services）. D .  Cisco Aironet autonomous access points cannot be supported by the Cisco Unified Wireless  Network. E .  Ii the lightweight access point solution， WLAN management is provided by the WLAN Solution  Engine （WLSE）. F .  Cisco Aironet lightweight access points cannot be supported by the Cisco Unified Wireless  Network.

A .  Real-time frame exchange is accomplished within the access point. B .  The control traffic between the client and the access point is encapsulated with the LWAPP.  C .  Authentication， security， and mobility are handled by the access point. D .  Data traffic between the client and the access point is encapsulated with LWAPP. E .  None of the other alternatives apply

A .  The access point has broadcast too many SSIDs. B .  The wireless client has missed too many beacons from the access point. C .  The maximum data retry count， initiated by the wireless client， is exceeded. D .  The wireless client has reduced the data rate. E .  The access point has requested client reauthentication. F .  The wireless client has missed too many IAPP （Inter Access Point Protocol） updates.

A .  Control traffic between an access point and a controller is encrypted within LWAPP. B .  Data traffic between an access point and a controller is encrypted within LWAPP. C .  Layer 3 mode packets are transmitted in TCP frames. D .  Data traffic between an access point and a controller is encapsulated within LWAPP. E .  VLAN tagging and QoS markings are applied at the access point.

A .  In ad hoc mode， the Independent Basic Service Set （IBSS） is a framework in which mobile  clients connect directly without an intermediate access point. B .  In Infrastructure mode， the Basic Service Set （BSS） is a framework in which mobile clients use  a single access point for connecting to each other or to wired network resources. C .  In Infrastructure mode， the Extended Services Set （ESS） is a framework in which two or more  Basic Service Sets are connected by a common distribution system （DS）. D .  In Infrastructure mode， the Independent Basic Service Setet （IBSS） is a framework in which  mobile clients connect directly without an intermediate access point. E .  In ad hoc mode， the Basic Service Set （BSS） is a framework in which mobile clients use a  single AP for connecting to each other or to wired network resources. F .  In ad hoc mode， the Extended Services Set （ESS） is a framework in which two or more Basic  Service Sets are connected by a common distribution system （DS）

A . enable aggressive load balancing B . enable coverage hole detection C . disable dynamic transmit power control D . enable short preamble

A .  Authentication   B .  Mobility C .  Security management D .  Transmission of beacon frames E .  Real-time portions of MAC management F .  Real-time aspects of the 802.11 prtocol management G .  SNMP collectio

A .  1. Access point sends probe request .2. Client sends probe response.3. Client initiates  association.4. Access point accepts association.5. Client adds access point MAC address to  association table. B .  1. Client sends probe request.2. Access point sends probe response.3. Client initiates  association.4. Access point accepts association.5. Access point adds client MAC address to  association table. C .  1. Client sends probe request.2. Access point sends probe response.3. Access point initiates  association.4. Client accepts association.5. Access point adds client MAC address to association  table. D .  1. Access point sends probe request .2. Client sends probe response.3. Client initiates  association.4. Access point accepts association.5. Access point adds client MAC address to  association table. E .  1. Client sends probe request.2. Access point sends probe response.3. Client initiates  association.4. Access point accepts association.5. Client adds access point MAC address to  association table. F .  None of the other alternatives apply.

A . Ongoing Support Handoff Meeting B . Staff Training C . Detailed Design Development D . Staging and System Migratio

A .  It supports eight different data rates. B .  It is fully backward compatible with 802.11b C .  It provides the same network throughput with 802.11b clients， 802.11g clients， or a mixed  environment where both clients are present. D .  It is only compatibly with the 11 Mbps 802.11b transfer rate. E .  It has three non-overlapping channels in its channel options.

A .  association request/response， probe request/response， authentication request/response B .  association request/response， authentication request/response， probe request/response C .  probe request/response， authentication request/response， association request/response D .  probe request/response， association request/response， authentication request/response E .  None of the other alternatives apply

A . Antenna power is a relative value reference to dBi B . LWAPP allows encrypted communications between lightweight access points and WLANcontrollers. C . Characteristics of antennas are directionality， gain， and polarization D . Power over Ethernet （PoE） is only available when a WLAN controller is integrated into thenetwork E . The WLAN solution Engine （WLSE） is used to control lightweight access points F . One of the advantages of the lightweight WLAN solution is that the devices act indepently

A．support B．adopt C．hinder D．attack

Susan, however, did not have any jobs before becoming head of the company. She just finished the college. The employees became even more concerned during Susan's first months on the job. Mr. Cleveland had been a __21__ leader. But Susan permitted many employees to make their own __22__. One employee said, "Old Mr. Cleveland always told us what to do. He kept people on a short leash. But the company did well. What does a "short leash" mean？A leash is a kind of rope. We use a leash to walk our pet dogs. The leash keeps the dog from __23__ away or getting into trouble. Keeping a person on a short leash means keeping him or her under close control. The person can't make many decisions for himself or herself. Ms. Cleveland does not keep her workers on a short leash. __24__, she encourages them to get better ways to do business. For example, her secretary proposed an idea. She said the company should offer a sum of money as a prize to the best student in the high school near the factory. The winner could use the prize money to study at a university. Mr. Cleveland appreciated the idea. After the prize was announced, people who lived in the area of the factory began to buy __25__ of the company's candy. Local newspapers wrote about the competition. Business improved. Ms. Cleveland made her secretary the company's first Director of Public Relations. The former secretary was very pleased. 21. A.decisions B.Instead C.more D.strong E.running 22. A.decisions B.Instead C.more D.strong E.running 23. A.decisions B.Instead C.more D.strong E.running 24. A.decisions B.Instead C.more D.strong E.running 25. A.decisions B.Instead C.more D.strong E.running

A. The laptop is missing the software supplicant B. The access point SSID is hidden. C. The laptop only supports TKIP and AES encryption, D. The access point is on the wrong channel.

A.Inheritance B.Low cohesion C.Tight coupling D.High cohesion E.Loose coupling F.Object immutability