Huawei
H12-831_V1.0
Q1:
Ethernet is a network that supports broadcasting, and once there is a loop in the network, this simple broadcasting mechanism can cause catastrophic consequences. Which of the following phenomena may be caused by loops
☐
A
The device cannot log in remotely☐
B
pass throughPINGSerious packet loss during network test with command☐
C
CPUOccupancy exceeds70%☐
D
use on the deviceDISPLAY INTERFA, CEcommand to view interface statistics, it is found that the interface receives a large number ofbroadcast message
Huawei
H12-831_V1.0
Q2:
What fields are added in Update in order to advertise IPv6 routes in BGP4+.
○
A
a new oneNLRITypes of'Pv6_NLR,which carryIPv6 NLRI prefix lengthandIPv6 NLRI prefix○
B
A new path attribute:MP_UNREA, CH_NLRI○
C
A new path attribute:MP_REA, CH_NLRI○
D
a new path attribute:IPv6_REA, CH_NLRI
Huawei
H12-831_V1.0
Q3:
When deploying MPLS/BGP IP VPN, which of the following descriptions is wrong about using BGP to exchange routing information between PEs and CEs?
○
A
existCEIn the case of multi-homing, enableBGP ASThe number substitution function may cause routing loops that can be passed throughBGP SoDpreventVPNIntra-site routing loops○
B
whenPEandCEbetweenBGPWhen exchanging routing information, if twoVPNThe autonomous system the site is in uses the same privateASnumber, can be passed throughASThe number replacement function is to use any specifiedASreplace the received private network route with theASnumber to preventASRoutes are discarded due to duplicate numbers○
C
existHub&Spokescene, whenHub-CEandHub-PEuseIGPTimeSpoke-PEandSpake-CEcannot makeEBGP○
D
whenPEandCEbetweenBGPWhen exchanging routing information, you do not need toPEPerform private network route import on theBGPoperation
Huawei
H12-831_V1.0
Q4:
LDP messages are exchanged between LSRs running the LDP protocol. LDP messages can be divided into four types according to their functions. Which of the following is not a message type of LDP?
○
A
discovery message○
B
announcement message○
C
conversation message○
D
label exchange message
Huawei
H12-831_V1.0
Q5:
From this figure, we can conclude that
○
A
R4not anyIS-ISNeighbor○
B
R4andee8c.aOc2.baf3establishedIPv4,IPv6ofIS-ISNeighbor○
C
R4andee8C. aOe2.baf3only establishedIPv6ofIS-ISNeighbor○
D
R4andee8c.aOc2.bat3only establishedIPv4ofIS-ISNeighbor