検証済みのH12-831_V1.0-ENUテスト問題集と解答で正確な265問
Huawei H12-831_V1.0-ENUテストエンジンPDFで全問無料問題集
質問 # 139
Ethernet is a broadcast-enabled network, and once there are loops in the network, this simple factory broadcast mechanism can have disastrous consequences. Which of the following phenomena may be caused by loops?
- A. use on devicedisplay interfaceWhen commanding to view interface statistics, it is found that the interface receives a large number of broadcast packets
- B. The device cannot log in remotely
- C. CPUOccupancy exceeds70%
- D. pass throughpingSerious packet loss during network test with command
正解：A、B、C、D
質問 # 140
Compared with the OSPFv2 message header, what fields are added in the OSPFv3 message header?
- A. Link ID
- B. Instance ID
- C. IPV6 Router ID
- D. IPV6 Auth Type
正解：B
質問 # 141
Part of the configuration of R1 is as follows, which of the following statement about OSPF on R1 is correct? (Multiple choice)
- A. The routing information of VRF tt will not appear in the routing table of OSPF process 1
- B. The routing information of VRF tt will appear in the routing table of OSPF process 1
- C. The OSPF LSDBs of process 1 and process 2 have exactly the same LSA in area 0
- D. The OSPF LSD8 of process 1 and process 2 have different LSAs in the area
正解：A、D
質問 # 142
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. switchMA, Caddress learning errors
- C. the wrong port is configured on the machine, andMA, Caddress binding
- D. interface is artificialshutdownor the physical interface is damaged
正解：A、B、C、D
質問 # 143
Which LSA in OSPFv3 can be flooded within an area?
- A. Intra-Area-Prefix-LSA
- B. Inter-Area-Router-LSA
- C. Link-LSA
- D. Inter-Area-Prefix-LSA
正解：A
質問 # 144
As shown in the figure, all routers run OSPF, because R3 is in the backbone area, so there is no type 3 LSA in the LSDB of R3.
- A. FALSE
- B. TRUE
正解：A
質問 # 145
Please sort by the cutover execution steps.
- A. After the cutover is completed, observe the status of the network on the new device
- B. Perform business inspections on new equipment
- C. Install new equipment and configure
- D. After ensuring the normal business operation of the new equipment, the old equipment goes offline
- E. Cut over business from old equipment to new equipment
正解：A、B、C、D、E
質問 # 146
In an operator's MPLSVPN network, there are two devices, PE1 and PE2, for MPLSVPN data forwarding. PE1 receives a 172.16.1.0/24 private network route from the client, and transforms it into a VPNv4 route on PE1 and assigns labels. Released to PE2 as 1027. The outgoing label of the MPLSLSR-ID from PE2 to PE1 is 1025.
When the client on PE2 accesses 172.16.1.0/24, the inner and outer labels of the frame sent by PE2 should be the combination of the following options?
- A. Outer label: 1025, inner label: 1025
- B. Outer label: 1027, inner label: 1027
- C. Outer label: 1027, inner label: 1025
- D. Outer label: 1025, inner label: 1027
正解：D
質問 # 147
As shown in the figure, OSPF is deployed in a campus, and Area 1 is deployed as an NSSA are a. In the case of missing header, R2 will automatically generate a missing header route of Type 7 LSA and flood it in the NSSA area
- A. True
- B. False
正解：A
質問 # 148
Which of the following statements is true about the role of ping and tracert?
- A. tracertandpingThe function is the same, just the name is different
- B. pingThe reachability from the local end to the peer end is verifieD. but it does not mean that the peer end to the local end must be reachable
- C. Pingthrough one-wayicmp echo requestPacket inspection and bidirectional reachability of the correct end
- D. TracertMust be able to trace every hop from source to destinationIPaddress
正解：B
質問 # 149
Regarding BGP/MPLS IPVPN routing interaction, which of the following descriptions is wrong?
- A. EntrancePEwill be fromCEreceivedIPv4route becomesVPNv4routing, and vary according toVPNsave the instance
- B. ExportPEupon receiving the entrancePEpostedVPNv4After routing, according to the route carriedRTproperty, yes VPNv4route to filter
- C. PEandCEthe interaction isIPv4routing information
- D. ExportPEable to passBGP,IGPor static routing to the remoteCEsendIPv4routing
正解：D
質問 # 150
After the VLAN-based MA, C address flapping detection function is configured, if the MA, C address flaps. The interface can be configured to perform actions according to requirements. Which of the following is NOT a configurable action?
- A. MA, Caddress blocking
- B. interface blocking
- C. Traffic filtering
- D. send alert
正解：C
質問 # 151
A campus has deployed IPv6 for service testing. There are 4 routers (R1, 22, R3 and R4) in this network, running 0SPFV3 to realize the interconnection of IPv6 network. A new router R5 needs to be connected to the network for testing. An engineer introduces a direct route in the OSPFVV3 process of R4 so that devices in the campus network can access the GE0/0/1 port address of R5. Which of the following statements about the scene is true of?
- A. R2will generate aType4 LSAonly inArea 0internal flooding
- B. R4will generate aType5 LSAdescribe bowIenteredIPv6routing prefix
- C. R4will generate aType5 LSAonly inArea 1internal flooding
- D. R2will generate aType4 LSAdescribeR4ofRouter ID
正解：A、B、D
質問 # 152
In the test phase of cutover, which standards that can indicate the test has been completed?
- A. Test network business as normal as the standard
- B. Check that the network is running normally as a standard
- C. The configuration check result of the IP device is normal as the standard
- D. The upper-layer application service test carried by the network is normal as the standard
正解：D
質問 # 153
As shown in the figure, there is a packet containing a three-layer label header. Please select the values (decimal) corresponding to the x, and Z fields in the figure.
正解：
解説：
YZX
質問 # 154
The IS-IS neighbor between R3 and R1 is not established. According to the information in this figure, what is the possible cause?
- A. The circuit-type of the interconnection interface between R3 and R1 does not match
- B. The System ID of R3 and R1 are duplicated
- C. The IIH certification of R3 and R1 failed
- D. The lS-Level of R3 and R1 do not match
正解：C
質問 # 155
After executing reset isis all, the IS-Is protocol process needs to be restarted and neighbors need to be re-established, and various IS-IS statistics will not be cleared.
- A. TRUE
- B. FALSE
正解：A
質問 # 156
When troubleshooting a network, if you need to confirm the business traffic path, which of the following tasks may be required? (Multiple choice)
- A. Confirm the data link layer service traffic path
- B. Confirm the network layer business traffic path
- C. Investigate business traffic path planning in the network design stage
正解：A、B
質問 # 157
IEIF expands the functions of OSPF by taking advantage of the strong expansibility of OSPF. To enable it to support IPv6 networks, the expanded protocol is called OSPFv3. OSPFv3 is compatible with OSPFv2.
- A. False
- B. True
正解：A
質問 # 158
Which of the following descriptions is correct about configuring static LSP in MPLS network? (Multiple choice)
- A. When a certain LSR is an Egress LSR, only In Labe1 needs to be configured, the range is 16~1023
- B. When a certain LSR is a Transit LSR, In Labe1 and Out labe1 need to be configured at the same time, the range of In Labe1 is 16~1023, and the range of Out Labe1 is 16~1048575
- C. When an LSR is an Ingress LSR, only Out Label needs to be configured, ranging from 16 to 1048575
- D. When a certain LSR is a Transit LSR, In Labe1 and 0ut Label need to be configured at the same time, the range is 16~1023
正解：A、B、C
質問 # 159
Since BGP is an EGP routing protocol, BGP routing policies can only be deployed between EBGP neighbors.
The routing policy deployed between IBGP neighbors is invalid.
- A. False
- B. True
正解：A
質問 # 160
What is the default aging time of the MAC address table of Huawei switches in seconds?
- A. 0
- B. 1
- C. 2
- D. 3
正解：B
質問 # 161
Which of the following BGP routing attributes cannot control BGP route selection?
- A. Community
- B. AS Path
- C. Originator ID
- D. MED
正解：A
質問 # 162
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