單項(xiàng)選擇題Which MQC-based output queueing method is designed to support multiple traffic classes including VoIPtraffic， mission-critical traffic， bulk traffic， interactive traffic and default class traffic？（）

A.Custom Queueing
B.CB-WRED
C.WRR Queueing
D.LLQ
E.CBWFQ


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1.單項(xiàng)選擇題What is the port number of an IPsec Encapsulating Security Payload packet？（）

A.IP protocol 50
B.IP protocol 51
C.TCP port 50
D.TCP port 51
E.UDP port 50
F.UDP port 51

2.多項(xiàng)選擇題In PPPoA architecture， which two methods are most commonly deployed？（）

A.terminating PPP sessions at the service provider
B.PPP framing
C.PPP multiplexing
D.GRE tunneling
E.L2TP tunneling

3.單項(xiàng)選擇題What type of IPv6 address is this address： FF05：： 2：260：8FF：FE52：F9D8？（）

A.multicast temporary node local
B.multicast temporary site local
C.unicast permanent link local
D.multicast permanent node link local
E.multicast permanent site local
F.unicast temporary link local

5.多項(xiàng)選擇題Which two statements about EIGRP are true？（）

A.EIGRP supports VLSM， route summarization， and routing update authentication.
B.If the feasible successor has a higher advertised distance than the successor route， it becomes the primary route.
C.Passive routes are in the process of being calculated by DUAL.
D.EIGRP exchanges full routing table information with neighboring routers with every update.
E.A query process is used to discover a replacement for a failed route if a feasible successor is not identified from the current routing information.