H3C GB0-381-ENU 問題集

質問 1：
Which of the following descriptions about route filtering is correct?
A. The purpose of route filtering is to control the propagation of routes
B. The purpose of route filtering is to control the generation of routes
C. Route filtering can save link overhead
D. Route filtering can play a role in protecting network security
正解：A,B,C,D

質問 2：
When the area authentication and domain authentication are configured in IS-IS, the IS-IS message types that are authenticated include _________.
A. LSP
B. CSNP
C. PSNP
D. Hello
正解：A,B,C

質問 3：
Regarding the DR and BDR election principles in the OSPF protocol, which of the following statements is wrong?
A. Routers with priority 0 must not participate in the election
B. The route with the highest priority value will be elected as the DR
C. The router with the largest interface IP address will be elected as the DR
D. The router with the largest Router ID will be elected as the DR
正解：A

質問 4：
Two routers cannot establish OSPF neighbor relationship. 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. By configuring silent-interface, the adjacent interfaces of both sides do not send protocol packets
D. The network type of both interfaces is P2P, and the DR election priority has been modified to 0
正解：A,B,C

質問 5：
After executing the displaospf interface command on the MSR router RTA, the router output is as follows:

From the above output it can be judged that ______.
A. The IP address of the current interface is 192.168.1.1
B. The Router ID of OSPF process 1 of RTA is 2.2.2.2
C. RTA is elected as BDR in the network segment where this interface is located
D. The OSPF network type of the current interface is Broadcast
正解：A,C,D

質問 6：
In the topology shown in the figure, configuration needs to be done on the RTA to import the default route in the OSPF area.

Which of the following configurations can achieve the above goals?
A. RTA-ospf-1] area 0 RTA-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255 RTA-ospf-1] default-route-advertise alwa RTA] ip route-static 0.0 .0.0 0.0.0.0 192.168.0.2
B. RTA-ospf-1] area 0 RTA-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255 RTA-ospf-1] default-route-advertise alwa
C. RTA-ospf-1] area 0 RTA-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255 RTA-ospf-1] default-route-advertise RTA] ip route-static 0.0. 0.0 0.0.0.0 192.168.0.2
D. RTA-ospf-1] area 0 RTA-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255 RTA-ospf-1] default-route-advertise
正解：A,B,C

質問 7：
The networking is shown in the figure, RTA learns the 10.1.1.0/24 route through OSPF 100, and uses network to import BGP.
View the 10.1.1.0/24 route on the RTA, and the results are as follows:
RTA]displaip routing-table 10.1.1.0
Destination/Mask Protocol Pre Cost Nexthop Interface
10.1.1.0/24 OSPF 10 2 1.1.1.2 Ethernet0/0
Configure default med 200 on RTA. Please visit the BGP routing table of RTA. What is the MED attribute value of 10.1.1.0/24?
A. 0
B. 2
C. 202
D. 200
正解：D

質問 8：
As shown in the figure, RTA and RTB are connected by IPv6 Over IPv4 manual tunnel, and OSPFv3 is run on each IPv6 interface, then there are ______ IPv6 routes learned by OSPFv3 on RTA.

A. 0
B. 2
C. 3
D. 1
正解：D

質問 9：
In the IS-IS network shown in the figure, RTA is configured with route aggregation.
So which of the following routes are included in the IS-IS routing table of RTC?
A. 172.16.1.0/24
B. 172.16.0.0/22
C. 172.16.3.0/24
D. 172.16.2.0/24
正解：B,C