多項(xiàng)選擇題Which three of these can be a forwarding equivalence class？ （）

A.IPsec tunnel
B.routing equivalence paths
C.traffic engineering tunnel
D.bridge or switch instance
E.groups of IP addresses


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2.單項(xiàng)選擇題What is the minimum hardware configuration of the multishelf Cisco CRS- 1 system？（）

A.one route processor （RP） Card and one modular services card （MSC）
B.one distributed route processor （DRP） and one S13 fabric card （SFC）
C.one line card chassis （LCC） and one fabric card chassis （FCC）
D.one route processor （RP） and one fabric card chassis （FCC）
E.one line card chassis （LCC） and one S13 fabric card （SFC）

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

A.UOP port 50
B.IP protocol 51
C.TCP port 51
D.TCP port 50
E.IP protocol 50
F.UDP port51

4.單項(xiàng)選擇題What is the encapsulation format of an MPLS Multicast VPN （MVPN） packer？（）

A.IP unicast in IP unicast
B.IP multicast in IP anycast
C.IP anycast in IP anycast
D.IP multicast in IP unicast
E.IP multicast in IP multicast
F.IP unicast in IP multicast

5.多項(xiàng)選擇題For SONET ring switching， the 50ms switch time： Select all that apply？（）

A.Plncludes the detection time
B.Applies to rings smaller than 1200km
C.Applies to rings smaller than 1000km
D.Includes up to 16 nodes