多項(xiàng)選擇題Which are correct descriptions and configurations of Anycast RP?()

A.In Anycast RP, two or more RPs are configured with the same IP address on loopback interfaces.
B.Anycast RP provides redundancy and load-sharing capabilities.
C.Routers with Anycast RP can be configured statically (loopback 1.1.1.1)with the command ip pim rp-address 1.1.1.1
D.Routers with Anycast RP can be configured statically (loopback 1.1.1.1)with the command ip rp-address pim 1.1.1.1
E.Routers with Anycast RP can be configured statically (loopback 1.1.1.1)with the command ip anycast-rp pim 1.1.1.1


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1.單項(xiàng)選擇題Which of the following IOS features can prevent IP spoofing attacks?()

A.PPP over Ethernet
B.Cisco Express forwarding
C.MPLS traffic Engineering
D.IS-IS routing
E.Unicast Reverse Path Forwarding(uRPF)

2.多項(xiàng)選擇題MPLS label headers for packet media consist of().

A.Version
B.Label
C.COS/EXP
D.TTL
E.S flag

3.單項(xiàng)選擇題In the context of MPLS,what is the correct action to be performed when an aggregate label is received ?()

A.It adds the VPN label into the top label in the MPLS label stack
B.It replaces the top label in the MPLS label stack with a VPN label and propagates
C.It replaces the bottom label in the MPLS label stack with a VPN label and propagates
D.It removes the top label in the MPLS label stack and does a Layer 3 lookup on underlying IP packets
E.None of above

4.單項(xiàng)選擇題GMPLS is based upon:()

A.Packet-based switching devices
B.VPI/VCI-based switching devices
C.Non-Packet-based devices
D.None of the above
E.A and B

5.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

6.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

7.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

8.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)#

9.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

10.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