多項選擇題Which two models are the models of DiffServ-Award traffic Engineering？（）

A.Class-based Model
B.Maximum Allocation Model
C.Russian Doll Model
D.Global Tunnel Model
E.Policy-based Model


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1.單項選擇題What are the address Family Identifier （AFI） and subsequent Address family Identifier ASAFI） values from VPNv6？（）

A.AFI is 2， SAFI is 128
B.AFI is 1， SAFI is 64
C.AFI is 2， SAFI is 64
D.AFI is 1， SAFI is 96
E.AFI is 2， SAFI is 96
F.AFI is 1， SAFI is 128

2.多項選擇題Which three modes are the operating modes of HDLC？ （）

A.asynchronous response mode （ARM）
B.normal peer mode （NPM）
C.asynchronous balanced mode （ABM）
D.normal response mode （NRM）
E.asynchronous client mode （ACM）

4.單項選擇題Which statement about the Cisco MPLS Traffic Engineering class-based tunnel selection （CBTS） is nottrue？（）

A.Local mechanism is at the middle-point router.
B.EXP selection is between multiple tunnels to the same destination
C.Bundle members are configured with EXP values to carry.
D.The tunnel selection is configured on the tunnel master.
E.The tunnel master bundles the tunnel members

5.多項選擇題Which two statements about MPLS Label Distribution Protocol （LDP） are true？ （）

A.LDP hello packets are sent to TCP 646.
B.LDP session packets are sent to TCP 646.
C.LDP session packets are sent to TCP 711.
D.LDP hello packets are sent to TCP 711.
E.LDP hello packets are sent to UDP 711.
F.LDP hello packets are sent to UDP 646.