單項(xiàng)選擇題In the context of MPLS Traffic engineering， TE path calculation is conducted by（）.

A.TE middle point
B.TE tail end
C.TE head end
D.All TE nodes along the path
E.Independent server


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1.單項(xiàng)選擇題What is the default SPF throuttle timer in OSPF？（）

A.0ms
B.10ms
C.500ms
D.1s
E.5s
F.30s

2.多項(xiàng)選擇題Which three choices are BGP Extended communities used in MPLS-VPN deployment？（）

A.Site Of Origin SOO
B.Route-Target
C.Route-Distinguisher
D.Domain Identifier BGP extended commumity

3.單項(xiàng)選擇題When configuring Multicast VPN （MVPN） over an MPLS core， both the Default and Data MDT isconfigured under which configuration mode？（）

A.router（config）#
B.router（config-if）#
C.router（config-vrf）#
D.router（config-router）#
E.router（config-router-af）#

4.多項(xiàng)選擇題Which two statements best describe EtherChannel？（）

A.EtherChannel technology helps aggregate traffic grouping multiple，full-duplex point-to-point linkstogether
B.EtherChannel technology is based on the 802.1 IEEE stand
C.EtherChannel can aggregate up to 800 Mbps，8 Gbps，or Gbps of aggregate bandwidth for a Fast EtherChannel，Gigabit EtherChannel，or 10 Gigabit EtherChannel connection respectively
D.EtherChannel is defined for Rapid Spanning Tree for faster convergence

5.單項(xiàng)選擇題RFC 3270 describes Differentiated Services （Diff-Serv） over Multi-Protocol Label Switching （MPLS）networks. Which model alters Differentiated Services （Diff-Serv） code points set in different DifferentiatedServices （Diff-Serv） domain？（）

A.Uniform model
B.Pipe Model
C.Short Pipe
D.None of the above will alter Differentiated Services（Diff-Serv）code points set in different DifferentiatedServices（Diff-Serv）domain