Refer to the exhibit. Which statement is true？（）

多项选择题Whichtwostatementsaretrueaboutnetworkvoicetraffic？（Choosetwo.）（）

A. Voice traffic is affected more by link speed than FTP traffic is.
B. Voice traffic is affected more by packet delays than FTP traffic is.
C. Voice streams involve larger packet sizes than most TCP network traffic involves.
D. Voice traffic is more sensitive to packet loss than TCP network traffic is.
E. Voice traffic requires QOS mechanisms only in heavily loaded network segments.

单项选择题WhichstatementabouttheLightweightAccessPointProtocol（LWAPP）protocolistrue？（）

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 aggregates radio management forward information and sends it to a wireless LAN solution  engine.
C. LWAPP authenticates all access points in the subnet and establishes a secure communication channel  with each of them.
D. LWAPP advertises its WDS capability and participates in electing the best WDS device for the wireless  LAN

多项选择题WhichtwotypesofactivitiesdoestheLightweightAccessPointProtocol（LWAPP）define？（Choosetwo.）（）

A. access point certification and software control
B. compression and Layer 3 address mapping
C. Layer 3 addressing and distribution
D. packet encapsulation， fragmentation， and formatting
E. SNMP monitoring services

单项选择题Aclientissearchingforanaccesspoint（AP）.Whatisthecorrectprocessorderthattheclientandaccesspointgothroughtocreateaconnection？（）

A. probe request/response， authentication request/response， association request/response
B. association request/response， authentication request/response， probe request/response
C. probe request/response， association request/response， authentication request/response
D. association request/response， probe request/response， authentication request/response

多项选择题WhichtwostatementsaretrueaboutvoicepacketsinaLAN？（Choosetwo.）（）

A. Voice traffic data flow involves large volumes of large packets.
B. Because a packet loss involves a small amount of data， voice traffic is less affected by packet losses than traditional data traffic is.
C. Voice carrier stream utilizes Real-Time Transport Protocol （RTP） to carry the audio/media portion of VoIP communication.
D. Voice packets are very sensitive to delay and jitter.
E. Voice packets are encapsulated in TCP segments to allow for proper sequencing during delivery.