單項選擇題Which attribute must exist in the BGP update packet?()

A. LOCAL_ PREF
B. AGGREG ATOR
C. AS_Path
D. Weight


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1.單項選擇題Which BGP path attribute is Cisco proprietary?()

A. weight
B. MED
C. local preference
D. origin
E. next - hop
F. AS - path

2.單項選擇題Which BGP attribute is used by BGP to prevent routing loops?()

A. AS - path
B. next - hop
C. MED
D. weight
E. local preference
F. origin

3.單項選擇題

The 192.168.0.0 network is not being propagated throughout  the network. Observe the BGP configuration commands from the advertising router.
What is the reason the 192.168.0.0 route is not being advertised? ()

A. The network 192.168.0.0 statement is missing mask 255.255.0.0
B. The network 192.168.0.0 statement is missing mask 0.0.255.255.
C. The network 10.0.0.0 statement is missing mask 255 .0.0.0.
D. The network 10.0.0.0 statement is missing mask 0.255.255.255.
E. The auto - summary configuration is missing.

4.單項選擇題

Above is the output from show ip bgp neighbors command. What is line 21 stating about the BGP connection?()

A. the number of consecutive TCP connections to the specified remote neig hbor
B. the number of total TCP connections that the router has
C. the number of times the router has established a TCP connection
D. the number of neighbors that the router has

5.單項選擇題

For the accompanying router output, which of the following statements describes the stat e that neighbor 172.16.254.3 is in?()

 

A. The router will not accept connections from the peer.
B. BGP can exchange routing information in this state.
C. The router is listening on its server port for connection requests from the peer.
D. The router ha s sent out an active TCP connection request to the peer.

6.單項選擇題

During BGP configuration on a router that has peered with other BGP speakers, the BGP command aggregate-a ddress 172.32.0.0 255.255.252.0 is issued. However, the peers do not receive this aggregate network in BGP advertisements. Also, the router does not have this aggregate network in its BGP table.
Which option indicates a possible reason this command did not cause the router to advertise the aggregate network to its peers?()

A. Interface NULL 0 is likely shutdown.
B. The next hop IP address must be a loopback address.
C. The BGP command no auto - summary is missing.
D. The BGP command no synchronization is missing.
E. Subnets of 172.32.0.0/22 do not exist in the BGP table.
F. The IGP running on this router does not have network 172.32.0.0/22 installed.

7.單項選擇題

Refer to the exhibit. Router RT - 1 and router RT - 2 both advertise network 131.25.0.0/16 to router
RT - 3 via internal BGP. What is the reason that router RT - 3 chose router RT - 1 as its best path to
network 131.25.0.0/16.()

A. It has a better router ID
B. It advertises a lower autonomous system
C. It advertises t he best AS - path
D. It advertises the best local preference
E. It advertises the best origin code
F. It advertises the best MED

8.單項選擇題

Refer to the exhibit. Router RT - 1 chooses one path to network 198.133.219.0/24. Indicate the reason Router RT - 1 choos es this "best" path. ()

A. In making its decision about the best path, RT - 1 gives precedence to the BGP MED values.
B. RT - 1 prefers internal BGP routes.
C. In making its decision about the best path, RT - 1 gives precedence to the origin code.
D. In makin g its decision about the best path, RT - 1 prefers the IGP metrics.
E. IP address 128.107.254.2 is lower than 128.107.255.2.
F. IP address 128.107.2.2 is lower than 128.107.255.2.

9.單項選擇題

Refer to the exhibit. On the basis of the configuration that is provided, how would the BGP updates that come from router R1 be replicated inside autonomous system 65200?()

A. All BGP updates that are received on router R 2 will be sent to routers R3 and R4. Routers R3 and R4 will then forward those BGP updates to router R5
B. None of the BGP updates that are received on router R2 will ever be received by router R5
C. All BGP updates that are received on router R2 will not be sent to routers R3 and R4
D. All BGP updates that are received on router R2 will be sent directly to router R5

10.多項選擇題Which two multicast IP addresses can be represented by the multicast MAC address 0100.5e0A.0A07?()

A. 228.10.10.7
B. 229.11.10.7
C. 229.138.10.7
D. 229.138.10.8
E. 228.10.10.8
F. 228.10.138.7

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Which of the following must match for  two directly connected routers running OSPF to establish a neighbor adjacency?()

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Which of the following features work the same in both RIP- 2 and RIPng?()

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Which of the following are true of both OSPFv2 and OSPFv3?()

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Look at the following configuration below and select the statements that are true.()RD2(config)#router ospf 100RD2(config - router)# distance 180 10.1.10.1 0.0.0.0 match - meRD2(config -router)#!RD2(config - router) #ip access - list standard match - meRD2(config - std - nacl)# permit host 172.16.0.0

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Which of the following is helpful to allow an IPv6 host to learn the IP address of a default gateway on its subnet?()

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The following output occurs on Router R1 , which runs both EIGRP for IPv6 and OSPFv3, with redistribution from EIGRP into OSPF configured with the redistribute eigrp 1 metric 25 command. Interface S0/0/1 has been enabled for EIGRP ASN 1. Which of the following should be true of redistribution in  this case?()D 2000::/64 [90/1422516]via FE80::213:19FF:FE7B:5026, Serial0/0/1C 2000:0:0:1::/64 [0/0]via Serial0/0/1, directly connectedL 2000::1:213:19FF:FE7B:5004/128 [0/0]via Serial0/0/1, receive

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Router R1 currently has no configuration related to IPv6 or IPv4. The following configuration exists in a planning document, intended to be used to copy/paste into Router R1 to enable OSPFv3 on interfaces F0/0 and S0/0/0. No other related configuration exists. Assuming F0/0 and S0/0/0 reach an up/up state, which of the following is true about OSPFv3 on R1 after this configuration has been pasted into R1?()ipv6 router ospf 1ipv6 unicast- routinginterface f0/0ipv6 address 2000 ::1/64ipv6 ospf 1 area 1interface s0/0/0ipv6 address 2001::/64 eui - 64ipv6 ospf 1 area 0

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