多項(xiàng)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.


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1.多項(xiàng)選擇題Which three statements about the secure domain router are true?()

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

2.多項(xiàng)選擇題Which two statements about VPNv4 address are true? ()

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

3.多項(xiàng)選擇題Which three statements about anycast RP are true? ()

A.MSDP is running between anycast RPs
B.Anycast RP provides redundancy and load-sharing capabilities
C.Multicast BGP is running between anycast RPs
D.In anycast RP,two or more RPs are configured with the same multicast IP address on loopback interfaces
E.In anycast RP,two or more RPs are configured with the same unicast IP address on loopback interfaces

4.多項(xiàng)選擇題Which two statements about the bgp deterministic-med and bgp always-compare-med commands are true?()

A.The bgp deterministic-med command is used to influence the BGP route selection process to cause the MED attribute to have higher precedence over the AS path length
B.The bgp always-compare command is used to influence the BGP route selection process to cause the MED attribute to have higher precedence over the AS path system
C.Enabling the bgp deterministic-med command ensures the comparison of the MED variable when choosing routes advertised by different peers in the same autonomous system.
D.Enabling the bgp always-compare-med command ensures the comparison of the MED variable for paths from neighbors in different autonomous systems.
E.The bgp deterministic-med and bgp always-compare-med commands are enabled by defult.

5.單項(xiàng)選擇題Which statement about MPLS TE Fast Reroute (FRR) link protection operation is not true?()

A.It requires a next-hop backup tunnel.
B.The backup tunnel terminates on the same tail-end router as the primary tunnel.
C.The point of local repair (PLR) swaps the label and pushes the backup label.
D.The restoration time is expected to be under 50 ms.
E.The backup tunnel can have associated bandwidth capacity

6.單項(xiàng)選擇題Which router or router combination is used to calculate the MPLS traffic engineering tunnel path?()

A.head-end router and tail-end router
B.middle-point router
C.head-end router
D.tart-end router
E.tail-end router

7.單項(xiàng)選擇題Which Cisco IOS command displays the export VPN route target value of a VRF?()

A.show ip vrf all
B.show ip vrf route-targets all
C.show ip vrf summary
D.show ip vrf interfaces
E.show ip vrf detail
F.show ip vrf

8.多項(xiàng)選擇題Which three statements about OSPF partial SPF are true?()

A.If it is triggered by Type 4, all Type 4 LSAs that announce a certain ASBR and all Type 5 and 7 LSAs are processed
B.If it is triggered by Types 5 and 7, all Type 5 and 7 LSAs that contribute to a certain destination are processed.
C.If it is triggered by Type 2, all Type 2 LSAs that contribute to a certain destination are processed.
D.If it is triggered by the change of Type 3, 4, 5, and 7 LSAs.
E.If it is triggered by the change of Type 2, 3, 5, and 7 LSAs

9.多項(xiàng)選擇題Which four statements about NetFlow are true?()

A.NetFlow records bidirectional IP traffic flow.
B.NetFlow export can be implemented over IPv4.
C.NetFlow export can be implemented over IPv6.
D.NetFlow records multicast IP traffic flow.
E.NetFlow records ingress traffic.
F.NetFlow records egress traffic.

10.單項(xiàng)選擇題Which statement about PIM sparse mode operations is true?()

A.It does not support all underlying unicast routing protocols like BGP
B.Receivers are registered with RP by their first hop router
C.From the RP, traffic flows down a source tree to each receiver.
D.It supports shared trees only, and assumes all hosts want the multicast traffic
E.Receivers are joined to the shared tree by their local designated router