Free Access H3C.GB0-381-ENU.v2022-11-25.q315 Practice Test (Page 43)

Question 206

The following features that enhance OSPF security are _______

A.Forbid the port to send OSPF packets

B.Authentication

C.Filter Tpe3 LSAs

D.virtual link

Question 207

As shown in the figure, RTA, RTB, and RTC are located in AS100, AS200, and AS300, respectively. Users do not want AS100 to transfer traffic between AS200 and AS300. The best way to achieve this requirement is:

A.Define AS_PATH List on RTA, and then apply it to the outbound direction of EBGP neighbors on RTA. ip as-path 1 den^200_300$ ip as-pth 1 permit

B.Define AS_PATH List on RTA, and then apply it to the outbound direction of EBGP neighbors on RTA. ip as-path 1 den^200$ ip as-path 1 den^300$ ip as-path 1 permit

C.Configure access control on the interconnection interface of RTA, RTB and RTC, and do not allow mutual access between AS 200 and 300.

D.Define AS_PATH List on RTA, and then apply it to the outbound direction of EBGP neighbors on RTA. ip as-path 1 den^200$ ip as-path 1 den^300$ ip as-pth 1 permit

Question 208

There are 4 routes 10.0.0.0/24, 10.0.1.0/24, 10.0.2.0/24, 10.0.3.0/24 in the routing table.
For route aggregation, the correct post-aggregation route is _________.

A.10.0.0.0/24

B.10.0.0.0/22

C.10.0.0.0/23

D.10.0.0.0/25

Question 209

The two routers cannot establish OSPF neighbors. The following possible reasons are ________.

A.The Hello time interval of both parties is inconsistent

B.The authentication passwords configured by both parties are inconsistent

C.Configure silent-interface so that the adjacent interfaces of both parties do not send protocol packets

D.The network type of both interfaces is P2P, and the DR election priority has been modified to 0

Question 210

In the topology shown in the figure, the network layer is reachable between RTA and RTB, and RTB and RTC.
Perform the following configuration on RTA, RTB and RTC respectively:
RTA]ospf 1
RTA-ospf-1]area 1
RTA-ospf-1-area-0.0.0.1]network 192.168.1.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 1.1.1.1 0.0.0.0
RTB]ospf 1
RTB-ospf-1]area 1
RTB-ospf-1-area-0.0.0.1]network 192.168.1.0 0.0.0.255
RTB-ospf-1-area-0.0.0.1]area 0
RTB-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0
RTB-ospf-1-area-0.0.0.0]network 192.168.2.0 0.0.0.255
RTC]ospf 1
RTC-ospf-1]area 0
RTC-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0
RTC-ospf-1-area-0.0.0.0]network 192.168.2.0 0.0.0.255
RTC-ospf-1]silent-interface all
The following statement is correct ________

A.RTC can accept Hello messages sent by RTB

B.Neighbors can be established normally between RTA and RTB

C.Cannot establish neighbors between RTB and RTC

D.RTC does not send Hello packets to RTB

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