單項(xiàng)選擇題You are about to migrate a customer network to use a VSS. Which of these statements is true about a VSS? ()

A. The VSS switch must be the root bridge for all VLANs and is automatically designated
B. The VSS switch is defined in RFC 4318 as a managed object
C. The PAgP+ or LACP protocols are used to maintain the operational state of the VSS devices
D. A VSS interoperates with a virtual port channel
E. The 802.1Q or ISL protocols are used to maintain the operational state of the VSS devices
F. A VSS increases the size of the spanning-tree domain


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1.單項(xiàng)選擇題Which command can be used on a PE router to connect to a CE router (11.1.1.4) in VRF red?()

A.telnet 11.1.1.4 /vrf-source red
B.telnet 11.1.1.4 source /vrf red
C.telnet 11.1.1.4 /source vrf red
D.telnet 11.1.1.4 /vrf red
E.telnet 11.1.1.4 vrf red

2.單項(xiàng)選擇題For which routes does LDP advertise a label binding?()

A.all routes in the routing table
B.only the IGP and BGP routes in the routing table
C.only the BGP routes in the routing table
D.only the IGP routes in the routing table

3.單項(xiàng)選擇題Which command will define a VRF with name ’CCIE’ in IPv6?()

A.ip vrf CCIE
B.ipv6 vrf CCIE
C.vrf definition CCIE
D.ipv6 vrf definition CCIE

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