Which three modes are the operating modes of HDLC？ （）

多项选择题WhichtworoutingprotocolssupportMPLStrafficengineeringlinkinformationdistribution？（）

A.OSPF
B.BGP
C.RIP version 2
D.IS-IS
E.EIGRP

单项选择题WhichstatementabouttheCiscoMPLSTrafficEngineeringclass-basedtunnelselection（CBTS）isnottrue？（）

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

多项选择题WhichtwostatementsaboutMPLSLabelDistributionProtocol（LDP）aretrue？（）

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.

多项选择题Whichthreestatementsaboutthesecuredomainrouteraretrue？（）

A.The logical router can span across chassis.
B.The fabric and system controller module are shared by all logical routers.
C.Each logical router has a distinct fabric and system controller module
D.The logical router can share a route processor
E.The logical router cannot share a route processor

多项选择题WhichtwostatementsaboutVPNv4addressaretrue？（）

A.The VPNv4 address is 128 bits long with a 128-bit long subnet mask
B.The VPNv4 address consists of an RD and an IPv4 address
C.The VPNv4 address is 96 bits long with a 64-bit long subnet mask
D.The VPNv4 address is 128 bits long with a 64-bit long subnet mask
E.The VPNv4 address consists of an RT and an IPv4 address
F.The VPNv4 address is 96 bits long with a 32-bit long subnet mask