多项选择题

A. Voice traffic is affected more by link speed than FT……

Which two statements are true about network voice traffic？（Choose two.）（）

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.

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热门试题

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.

单项选择题Refer to the exhibit. A Cisco Aironet Wireless LAN Client Adapter has been installed and configured through the ADU on the PC. The Aironet System Tray Utility （ASTU） has been enabled during the installation and the icon appears in the system tray area in the lower right of the desktop. What is the significance of the icon？（）

A. It indicates that the radio of the client adapter is disabled.
B. It indicates that the client adapter is not associated to an access point or another client.
C. It indicates that the client adapter is associated to an access point or another client， but the user is not EAP authenticated.
D. It indicates that the client adapter is associated to an access point or another client， that the user is authenticated if the client adapter is configured for EAP authentication， and that the signal strength is excellent or good.
E. It indicates that the client adapter is associated to an access point or another client， that the user is authenticated if the client adapter is configured for EAP authentication， and that the signal strength is fair.
F. It indicates that the client adapter is associated to an access point or another client， that the user is authenticated if the client adapter is configured for EAP authentication， and that the signal strength is poor.