GB0-381-ENU試験無料問題集「H3C Large-Scale Routing Network Technologies V2.0 認定」
In the broadcast network of OSPF, there are 4 routers RTA, RTB, RTC and RTD in the same network segment, their priorities are 2, 1, 1 and 0 respectively, and the Router IDs are 192.168.1.1, 192.168.2.1, 192.168 respectively. 3.1 and 192.168.4.1. If the OSPF protocol is enabled on these 4 routers at the same time, the BDR selected by OSPF is _____.
正解:B
解答を投票する
In the network shown in the figure, the BGP route learning among the routers is normal, and the BGP route attributes all take the default values. After importing route 8.0.0.0 into BGP on RTA, if the next hop of route 8.0.0.0 on RTD is to point to RTC, the following adjustment methods are feasible: ______.
正解:A,D
解答を投票する
Execute the displaospf vlink command on the MSR router RTA, the router output is as follows:
OSPF Process 100 with Router ID 3.3.3.3
Virtual Links
Virtual-link Neighbor-ID -> 2.2.2.2, Neighbor-State: Full
Interface: 20.0.0.1 (GigabitEthernet0/1)
Cost: 1 State: P-2-P Tpe: Virtual
Transit Area: 0.0.0.1
Timers: Hello 10, Dead 40, Retransmit 5, Transmit Dela1
Judging from the above output _______.
OSPF Process 100 with Router ID 3.3.3.3
Virtual Links
Virtual-link Neighbor-ID -> 2.2.2.2, Neighbor-State: Full
Interface: 20.0.0.1 (GigabitEthernet0/1)
Cost: 1 State: P-2-P Tpe: Virtual
Transit Area: 0.0.0.1
Timers: Hello 10, Dead 40, Retransmit 5, Transmit Dela1
Judging from the above output _______.
正解:A,D
解答を投票する
In the topology shown in the figure, the correct IP addresses have been configured on RTA, RTB and RTC, and the network layer is reachable.
If OSPF neighbors need to be established between routers and routes are transmitted correctly, which of the following configurations are feasible?
If OSPF neighbors need to be established between routers and routes are transmitted correctly, which of the following configurations are feasible?
正解:A,B
解答を投票する
In the following BGP networking application, an EBGP neighbor relationship is established between the three routers, in which RTA receives the Internet routes sent by RTB and RTC at the same time, so that it can reach the Internet 192.10.0.0/16 through two links.
The main configurations of RTA, RTB and RTC are as follows:
RTA]
bgp 700
network 190.10.0.0 mask 255.255.0.0
undo snchronization
group as500 external
peer as500 as-path-acl 1 export
peer 201.1.1.1 group as500 as-number 500
group as600 external
peer as600 as-path-acl 1 export
peer 160.1.1.1 group as600 as-number 600
ip as-path-acl 1 permit ^$
RTB]
bgp 500
network 192.10.0.0 mask 255.255.0.0
undo snchronization
group as700 external
peer as700 route-policsetmed export
peer 201.1.1.2 group as700 as-number 700
route-policsetmed permit node 10
applcost 50
RTC]
bgp 600
network 192.10.0.0 mask 255.255.0.0
undo snchronization
group as700 external
peer as700 route-policsetmed export
peer 160.1.1.2 group as700 as-number 700
route-policsetmed permit node 10
applcost 100
According to the above configuration, which router will the 190.10.0.0/16 network segment on the RTA access the 192.10.0.0/16 network segment through?
Which attribute of the BGP route determines the route preference principle through this router?
The main configurations of RTA, RTB and RTC are as follows:
RTA]
bgp 700
network 190.10.0.0 mask 255.255.0.0
undo snchronization
group as500 external
peer as500 as-path-acl 1 export
peer 201.1.1.1 group as500 as-number 500
group as600 external
peer as600 as-path-acl 1 export
peer 160.1.1.1 group as600 as-number 600
ip as-path-acl 1 permit ^$
RTB]
bgp 500
network 192.10.0.0 mask 255.255.0.0
undo snchronization
group as700 external
peer as700 route-policsetmed export
peer 201.1.1.2 group as700 as-number 700
route-policsetmed permit node 10
applcost 50
RTC]
bgp 600
network 192.10.0.0 mask 255.255.0.0
undo snchronization
group as700 external
peer as700 route-policsetmed export
peer 160.1.1.2 group as700 as-number 700
route-policsetmed permit node 10
applcost 100
According to the above configuration, which router will the 190.10.0.0/16 network segment on the RTA access the 192.10.0.0/16 network segment through?
Which attribute of the BGP route determines the route preference principle through this router?
正解:D
解答を投票する
In the three autonomous systems shown in the figure, AS200 is the filtering AS of AS100 and AS300, and AS100 internally generates routes
10.1.1.0/24 , 10.1.2.0/24 , 10.1.3.0/24 .
The main device configuration is shown below.
RTC:
bgp 100
aggregate 10.1.0.0 255.255.0.0
network 10.1.1.0 255.255.255.0
network 10.1.2.0 255.255.255.0
network 10.1.3.0 255.255.255.0
undo snchronization
peer 200.1.2.2 as-number 200
RTB :
bgp 200
aggregate 10.1.0.0 255.255.0.0 as-set detail-suppressed
undo snchronization
peer 200.1.2.1 as-number 100
peer 200.1.3.2 as-number 300
The following statement is correct about the routing learning on each device.
10.1.1.0/24 , 10.1.2.0/24 , 10.1.3.0/24 .
The main device configuration is shown below.
RTC:
bgp 100
aggregate 10.1.0.0 255.255.0.0
network 10.1.1.0 255.255.255.0
network 10.1.2.0 255.255.255.0
network 10.1.3.0 255.255.255.0
undo snchronization
peer 200.1.2.2 as-number 200
RTB :
bgp 200
aggregate 10.1.0.0 255.255.0.0 as-set detail-suppressed
undo snchronization
peer 200.1.2.1 as-number 100
peer 200.1.3.2 as-number 300
The following statement is correct about the routing learning on each device.
正解:A,B
解答を投票する
Running the command on the router and its display information is as follows:
<RTA>displaisis brief
ISIS (1) Protocol Brief Information:
network-entit:
01.1111.1111.1111.00
is-level: level-1-2
cost-ste: narrow
preference: 15
Lsp-length receive: 1497
Lsp-length originate: level-1 1476
level-2 1476
maximum imported routes number: 10000
Timers:
lsp-max-age: 1200
lsp-refresh: 900
Interval between SPFs: 10
From the above information, we can know that RTA______.
<RTA>displaisis brief
ISIS (1) Protocol Brief Information:
network-entit:
01.1111.1111.1111.00
is-level: level-1-2
cost-ste: narrow
preference: 15
Lsp-length receive: 1497
Lsp-length originate: level-1 1476
level-2 1476
maximum imported routes number: 10000
Timers:
lsp-max-age: 1200
lsp-refresh: 900
Interval between SPFs: 10
From the above information, we can know that RTA______.
正解:A,B
解答を投票する