A.Each subinterface has its own hardware queue and can ……

多项选择题Whichtwostatementsaretrueabouttheprotocolsthatareusedfortransmittingvoicetraffic？（）

A.RTP multiplexing is used to keep multiple phone conversations separate
B.RTP provides end-to-end delivery services for voice traffic.
C.UDP is used to ensure a reliable transmission from sender to receiver.
D.RTP is used to provide resource reservation for the voice stream.
E.UDP provides multiplexing of multiple phone conversations.

多项选择题WhataretwocomponentsoftheOoSIntegratedServices（IntServ）model？（）

A.link efficiency
B.admission control
C.classification and marking
D.shaping and policing
E.congestion avoidance using the RTP protocol
F.resource reservation using the RSVP protocol

多项选择题Ciscoprovidestwoenhancementsto802.11securitywhichprotectaWEPkeyfromexploits.Whichtwotechnologiesprovidethesesecurityenhancements？（）

A.802.1X
B.Cisco Temporal Key Integrity Protocol （CKIP）
C.Extensible Authentication Protocol-Flexible Authentication via Secure Tunneling （EAP-FAST）
D.Cisco Message Integrity Check （CMIC）
E.One-Time Passwords （OTP）
F.Advanced Encryption Standard （AES）

单项选择题Refer to the exhibit. The network has been configured with H.323 gateways and gatekeepers as shown. Which statement is true when a call is placed？（）

A.A gatekeeper is contacted to determine the correct local gateway to use.
B.A gateway will receive the call and forward a call request to the local gatekeeper.
C.A gateway will receive the call and forward a call request to the gatekeeper on the other side of the WAN
D.A gatekeeper will receive the call and forward a call request to the remote gateway.

多项选择题WhatarethreeCiscoUnifiedCallManagerfeatures？（）

A.programming interface to external applications
B.FXS and FXO port negotiation
C.AutoQos VoIP trust boundaries
D.signaling and device control
E.LLO for voice and video traffic
F.directory and XML services