Free Access Huawei.H12-261_V3.0.v2022-11-21.q152 Practice Test (Page 10)

Question 41

The following about OSPFv3Router-LSA, which statement is correct?

A.When L in the header of LSAS When type=0x0001, the data area representing LSA isRouter-LSA

B.Similar to OSPFv2, the Option field exists in the LSA header instead ofRouter-LSA data area

C.The data area of the Router-LSA contains the Link-Local address

D.The data area of the Router-LSA contains the interface of the local neighbor ID

Question 42

man-in-the-middle attack or IP/MAC SpoofingAttacks can lead to information leakage and other hazards, and are more common in intranets. To prevent man-in-the-middle attacks or IP/MAC SpoofingAttack, the configuration methods that can be taken are:

A.Limit the maximum number of learning allowed on a switch interfaceMACnumber of addresses

B.turn onDHCP Snooping checkDHCP Function of the CHADDR field in the REQUEST message

C.Configuration on the master switchDHCP Snooping withDAL or IPSG for linkage

D.configureTrusted/Untrusted interface

Question 43

Regarding Layer 2 VPN technology, which of the following statements is correct?

A.BGP EVPN solves the problems of MAC address flapping and multi-tenancy that VPLS cannot support.

B.BGP EVPN supports tenant isolation, Multi-homing and broadcast suppression and other functions.

C.The VPLS configuration is complex, and the Layer 2 network transparently transmits BUM packets.

D.VPLS is a technology widely used in the existing network, which can provide transparent transmission of Layer 3 packets and realize multi-point access.

Question 44

OSPF There will definitely not be a type of LS in the stub areaA

A.Type7

B.Type5

C.Type4

D.Type3

Question 45

Which of the following statements about OSPF route filtering is incorrect?

A.Filtering for three types of LSAs needs to be configured on ABRs between OSPF areas

B.Filter LSA based on interface, can filter in and out direction, except Grace All LS except LSAA

C.In the NSSA area, filtering for external route import and advertisement can be configured on ASBR or ABR.

D.When calculating routes based on the link state database, use filter-policy import command, this filtering method only affects the routing entries in the routing table. plus, for OSPF the link state database has no effect

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