H3C GB0-381-ENU 問題集

質問 1：
In the IS-IS network shown in the figure, RTB 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. 172.16.3.0/24
C. 172.16.2.0/23
D. 172.16.2.0/24
正解：A,C

質問 2：
M In the network shown in the figure, the default next hop RTC of RTA, and the PBR configuration on RTA is as follows:
policy-based-route pbr_a permit node 10
if-match packet-length 64 100
applip-address next-hop 11.0.0.2
if-match packet-length 101 1000
applip-address next-hop 12.0.0.2
policy-based-route pbr_a dennode 20
Assuming the policy is successfully applied, how will the data flow on the RTA be forwarded?
A. Packets with a packet length of 64~100 bytes will be sent to 11.0.0.2 according to policy routing
B. Packets with a packet length of 101~1000 bytes will be routed to 12.0.02 according to the policy
C. Packets with a length of 64~100 bytes will be sent to 11.0.0.2 according to the default route
D. Packets with a length of 101~1000 bytes will be sent to 11.0.02 according to the default route
正解：A,B

質問 3：
V In the network as shown, the correct IP addresses have been configured on RTA, RTB and RTC.
Execute the following commands on the RTA, RTB and RTC routers respectively:
RTA-Serial5/0] ospf dr-priorit100
RTA] ospf 1 router-id 1.1.1.1
RTA-ospf-1] area 0
RTA-ospf-1] peer 192.168.1.2
RTA-ospf-1] peer 192.168.1.3
RTA-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.2
RTB] ospf 1 router-id 2.2.2.2
RTB-ospf-1] area 0
RTB-ospf-1] peer 192.168.1.1
RTB-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255
RTC] ospf 1 router-id 3.3.3.3
RTC-ospf-1] area 0
RTC-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255
Judging from the above configuration, ________
A. RTA and RTB, RTA and RTC can establish neighbor relationship
B. No neighbor can be established between RTA and RTB, but can be established between RTA and RTC
C. No neighbors can be established between RTA and RTB, RTA and RTC
D. Neighborhood can be established between RTA and RTB, but not between RTA and RTC
正解：D

質問 4：
Which of the following statements about SOA and IToIP is true is _______.
A. The IToIP solution embodies the core idea of ​​SOA.
B. IToIP allows flexible, fast and efficient construction of enterprise intelligence applications, which can quickly adapt to changes in enterprise business processes.
C. SOA solutions require the integration of IT infrastructure and build a unified IT infrastructure platform based on network technology.
D. SOA is based on the network, eliminates the information gap caused by heterogeneous systems, integrates various services such as storage, security, and multimedia, and realizes the componentization and resourceization of IT infrastructure.
正解：A,B

質問 5：
What techniques can be used to reduce the number of iBGP neighbors within an autonomous system?
A. Alliance
B. route aggregation
C. peer group
D. route reflector
正解：A,D

質問 6：
It is known that the configuration of a router's PBR is as follows:
policy-based-route pbr_a permit node 10
if-match acl 3000
if-match packet-length 101 1000
apploutput-interface serial 2/0
Assuming the policy is successfully applied, how will the relevant traffic on this router be forwarded?
A. Data flow matching Alc3000 will be forwarded according to policy routing
B. In the data flow matching Alc3000, the packets with the packet length of 101~1000 bytes will be forwarded according to the policy routing
C. Packets with a length of 101~1000 bytes will be forwarded according to policy routing
D. The data flow matching the Alc3000 and the packets with a packet length of 101~1000 bytes will be forwarded according to the policy routing
正解：B

質問 7：
The network is shown in the figure, the user AS number is 100, and the user accesses the Internet through ISP1 and ISP2 respectively. The AS list of ISP1 is {201, 202, 203}, and the AS list of ISP2 is {301, 302, 303}, and the user is required to access ISP1. ISP1 line is preferred when the originating route, ISP2 line is preferred when accessing the originating route of ISP2, and ISP1 is preferred when accessing other Internet addresses. How should this be implemented?

A. .RTA] bgp 100 default local-preference 200 RTB] bgp 100 peerRTD route-polictest import route-polictest permit node 10 if-match as-path 1 appllocal-preference 300 ip as-path 1 permit _301$ ip as -path 1 permit _302$ ip as-path 1 permit _303$
B. RTA] bgp 100 peerRTD route-polictest import default local-preference 200 route-polictest permit node 10 if-match as-path 1 appllocal-preference 300 route-polictest permit node 20 ip as-path 1 permit _201$ ip as-path 1 permit _202$ ip as-path 1 permit _203$ RTB] bgp 100 default local-preference 200
C. RTA] bgp 100 peerRTD route-polictest import default local-preference 200 route-polictest permit node 10 if-match as-path 1 appllocal-preference 200 ip as-path 1 permit _201$ ip as-path 1 permit _202 $ ip as-path 1 permit _203$ RTB] bgp 100 peerRTD route-polictest import route-polictest permit node 10 if-match as-path 1 appllocal-preference 200 ip as-path 1 permit _301$ ip as-path 1 permit _302 $ ip as-path 1 permit _303$
D. RTA] bgp 100 peerRTD route-polictest import default local-preference 200 RTB] bgp 100 peerRTD route-polictest import route-polictest permit node 10 if-match as-path 1 appllocal-preference 200 ip as-path 1 permit _301$ ip as-path 1 permit _302$ ip as-path 1 permit _303$
正解：D

質問 8：
A BGP connection is established between the routers RTA and RTB, and routes are learned from each other. Both RTA and RTB use default timers.
If the link between routers is congested, so that the RTA cannot receive the Keepalive message sent by the RTB, which of the following consequences will occur?
A. After 30 seconds, RTA considers the neighbor invalid and deletes the route learned from RTB
B. After 180 seconds, RTA considers the neighbor invalid and deletes the route learned from RTB
C. After 120 seconds, RTA considers the neighbor invalid and deletes the route learned from RTB
D. After 90 seconds, RTA considers the neighbor invalid and deletes the route learned from RTB
正解：B

質問 9：
Level-1 routes exist on ________.
A. Between ES and IS
B. between different Areas
C. between different Domains
D. between IS within the same Area
正解：D