Huawei h12-831-v1-0 practice test

Question 1

esigth uses different colors to distinguish different alarm levels, red represents emergency, orange
represents important, and yellow represents
The table is secondary, and blue represents the prompt. Which of the following statements about
different alarm levels is correct: (multiple choice)

• A. Prompt: A potential or imminent business-impacting failure has been detecteD. but currently has little business impact
• B. Minor: There is currently a certain impact on the business, but corrective actions are required to prevent serious failure alarms
• C. Urgent: Alerts that have affected the business and require immediate corrective action
• D. Important: An alarm that has affected the business and will have serious consequences if not handled in time

Question 2

As shown in the figure, configure a backhaul summary route 10.0.0.0/24 on the border route RT1.
next hop
to RT2. At the same time, the default route to the external network is configured. At this point, a
routing black hole will appear. The following is about routing
Is the black hole statement correct? (multiple choice)

• A. Configuring black hole routing can solve the routing black hole problem
• B. Routing black hole has no impact on the network and can be ignored
• C. Precise routing $□ can always avoid routing black holes
• D. If the terminal in the network sends data packets to the network segment that does not appear on the internal network, a loop will occur

Question 3

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 of broadcast message

Question 4

What characteristics must a high-risk operation plan have?

• A. with verification
• B. Strong operability
• C. accurate
• D. can return

Question 5

Which of the following reasons may cause the hosts in the same--VLAN LAN to fail to communicate
with each other

• A. port isolation is configured on the switch
• B. the wrong port is configured on the machine, andMA, Caddress binding
• C. interface is artificialshutdownor the physical interface is damaged
• D. switchMA, Caddress learning errors

Question 6

During the daily troubleshooting process, engineers may need to view some alarm information of
the device. Run the terminal command to enable the terminal to display the debugging/log/alarm
information sent by the information center.

Question 7

All routers in a network run IS-IS, and all are in Area 49.0001, where the L SDB of R1 is shown in the
figure
According to this, it is judged that the DIS of Level-2 is. (Please fill in the device name, such as R1)

|<R1> displayisisisdb
DatabaseinformationforISIS (1)
Level-1Link State Database
LSPIDO Seq Num ChecksumbHoldtime Length ATT/P/OL
0001.0000.4004.00-00 0x00000008 0xb701 1186 68 0/0/0
0001.0000.2002.00-00Ox 0000008 0xb701 1186680/0/0
0001.0100.1001.00-00*0x00000050x2f9d1187 680/0/0
0001.0100.1001.01-00*0x00000001 0xa79e1110550/0/0
Level-2 Link State Database
LSPIDAN> Seq Num Checksum., Holdtime Length ATT/P/OL
0001.00002002.00-00 0000000080xb7011188 6S0/0/0
0001.0100.1001.00-00* 0x00000060x2d9e 1187 680/0/0
0001.0100.1001.01-00* 0x00000005OxdObO 1191 660/0/0
0100.0000.3003.00-00 000000005 0xfe53 1185 560/0/0

Question 8

In the absence of a header, the Domain ID of each OSPF process running on the router and the
process ID of the process
Be consistent and can be modified under the process through the domain-id command

• A. True
• B. False

Question 9

The link status information between different S.4S processes of the routers around the Taiwan and
Taiwan is considered to be sound insulation.

• A. True
• B. False

Question 10

Senior engineers with rich experience can quickly solve faults only by experience, with high
efficiency.

• A. True
• B. False

Question 11

A company purchased private lines from two operators. In order to optimize the lines, the company
used the 6GP protocol to learn from two
Route entries that operate off. However, after the enterprise found that this configuration, the traffic
of the port route increased greatly, and the network engineering arrangement
After investigation, it was found that the traffic of the two operators was passed to each other
through the enterprise egress router. Therefore, the enterprise intends to use the routing strategy so
that the traffic of the packets of different carriers is no longer passed to each other. Is the
configuration in the following figure correct?

• A. True
• B. False

Question 12

The routing policy tools that can be used by BGP mainly include Filterpolicy and oRoute-policy.
Fiterpolicy can only filter routes, Rote - policy can only modify routes

• A. True
• B. False

Question 13

A campus deploys OSPF to implement network interworking. The LSDB of R2 is shown in the figure.
From this LSDB. it is possible to
What information was obtained?

• A. ArealNone inType3 LSA. maybeR2in the area1In the correct directiontype3 LSAfiltered
• B. Area 1forNSSAarea
• C. R2WillType7 LSAThe default route is converted toType5 LSAdefault route for
• D. R2existOSPFThe default route is delivered in the process

Question 14

Which of the following are static information coke analysis?

• A. Interface Type
• B. Packet loss rate
• C. License
• D. Equipment type

Question 15

According to this diagram, can we break the

• A. system-IDforee8c.a0c2.baf2The device' whose type isLevel-1
• B. system-IDforee8c.a0c2.baf2device whose type isLevel-1-2
• C. R4belong only toLevel-1
• D. R4dry onlyLevel2