A.a class can be identified as a single application， multiple applications with similar service needs，or be based on the source or destination IP address
B.a drawback of the DiffServ field in the MAC header to mark frames into behavior aggregates （BAs）
C.DiffServ uses the DiffServ field in the MAC header to mark frames into behavior
D.the DiffServ field occupies the same eight bits of the MAC header that were previously used for the ToS field
E.the first six high-order bits of the DiffServ field are used to identify the Resource Reservation Protocol （RSVP） value
F.the primary goal of DiffServ is scalability
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A.FECN
B.LLQ
C.WRED
D.LFI
E.CRTP
F.CBWFQ
A.Cisco CallManager
B.Cisco CallManger Express （CME）
C.Cisco CallManager Gateway （CMG）
D.Cisco CallManager Voice Gateway （CMVG）
E.Media Gateway Control Protocol （MGCP）
A.increases link capacity
B.increases buffer space to accommodate bursts of traffic from delay-sensitive applications
C.provides prioritized forwarding for drop-sensitive applications
D.drop lower priority packets before congestion occurs
E.separates traffic into as many as 64 queues that can be uniquely prioritized
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
Refer to the wxhibit . what QOS model should be used to reserve the requested bandwidth and delay needed for each allowed VOIP call regardless of changing networkconditions？（）
A.best-effort delivery
B.ingress committed rate （ICR）
C.shaping and policing
D.egress committed rate （ECR）
E.integrated Services （IntServ）
F.differentiated services （DiffServ）
最新試題
Which two functions can be provided by an Integrated Services Router （ISR） in a VoIP network？（）
For delay sensitive traffic， what are the three best ways that are used to prevent packet loss？ （）
Which two QoS classification and marking statements are true？ （）
In the design of a QoS solution， which two factors should be taken into consideration？（）
Within the WMM policy， how many default QoS radio access categories are there？（）
What is an advantage of the IntServ QoS model？（）
Which three practices are important to the implementation of a DiffServ QoS architecture？（）
Which set of classes correctly identifies the four traffic classes， from highest priority to lowest priority， specified in the 802.11e standard？（）
Which two statements about the Wi-Fi Multimedia （WMM） standard are true？（）
Which statement is true about the Call Admission Control （CAC） feature in VoIP networks？（）