Huawei H12-261_V3.0 問題集

質問 1：
the following aboutWhat are the wrong technical claims about URPF, IPSG and DAI?
A. IPSG checks the source IP address and source MA of IP packetsC address, DAI only checks the correspondence between IP and MAC.
B. URPF can be used to prevent DDoS false origin attacks.
C. IPSG technology checks IP packets to prevent source IP spoofing attacks.DAI checks the source of ARP packet filtering attacks.
D. DAI does not support manual configuration of binding tables.
正解：A,D

質問 2：
in command aggregateate ipv4-address { mask | mask-length } [as-set I attribute-policy route-policy-name1 ldetail- suppressed I origid-policy route-policy-name2 |suppress-policy route-policy-name3], multiple parameters can be used toAffects summary routes and their results. Which description is correct about this command?
A. If Supp is configuredress-policy also generates aggregated routes. The if-match clause in Route-policy is used to select suppressed detailed routes. Detailed routes matching the Route-policy will still be advertised to other BGP neighbors
B. If Attrbute-policy is configured, you can change the attributes of the aggregated route
C. If Origin is configured-policy, only with Route Only the detailed routes matching the policy can participate in the aggregation
D. If As is configured-set, the AS_PATH of the summary route contains the AS path information of all specific routes to prevent routing loops
正解：B,C,D

質問 3：
OSPRouter in F Lin included in LSAk What are the types of Type? (Multiple Choice)
A. TransNet
B. Vlink
C. P-2-P
D. StubNet
正解：A,B,C,D

質問 4：
When a BGP EVPN Type2 route is used to transmit an IRB type route, the information carried includes?
A. Host MAC address
B. Layer 3 VNI
C. Layer 2 VNI
D. host IP address
正解：A,B,C,D

質問 5：
Assuming that the shaping rate of a port is 100Mbps, the input bandwidth of each service on the interface and the PIR of the IP configuration are as follows: After the first round of scheduling, what is the bandwidth allocated by the EF queue?

A. 30M
B. 15M
C. 25M
D. 90M
正解：C

質問 6：
Which of the following statements about BGP route reflectors is correct?
A. The trigger-ID attribute is generated by a route reflector (RR) and is used to prevent loops between clusters.
B. Cluster-List is an optional non-transition attribute used to prevent loops within a cluster.
C. Routes learned from clients, advertised to all non-clients and clients of this RR.
D. A backbone network is divided into multiple reflection clusters, eachRR configures her RRs as non-clients, and establishes IBGP full connections between RRs.
正解：C,D

質問 7：
The topology is as follows,R1 can access the Internet through R2 and R3, RI and R2, An EGP connection is established between R1 and R3. R2 and R3 belong to the same AS. They advertise default routes through BGP respectively. It is required that the traffic from R1 to access the Internet prefers R2. The following methods can be implemented:

A. R2 specifies that peer R1 sets the MED attribute to 150 in the export direction
B. R2 specifies that peer R1 sets the local priority in the export direction to 150
C. R1 specifies that peer R2 sets the local priority to 150 in the import direction
D. R1 specifies that the peer R3 sets the MED attribute to 150 in the import direction
正解：C,D
解説: (Topexam メンバーにのみ表示されます)

質問 8：
four routersR1, R2, R3 and R4 run ISIS, The ISIS router type has been marked in the figure, and the area addresses of the four routers are all 49.0001.The result of checking the routing table on R1 is as follows. The reason why R1 does not reach the route to 10.34.34.4 is because

A. System-ID of R2 andR1 conflict
B. The routing policy configured on R2 filters out the default route
C. System-ID of R2 andR3 conflict
D. Territorial planning errors for R3 and R4
正解：D