Latest Verified & Correct Huawei H12-831_V1.0-ENU Questions & Answers Daily Updated [Q103-Q126]

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Latest Verified & Correct Huawei H12-831_V1.0-ENU Questions & Answers Daily Updated

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Huawei H12-831_V1.0-ENU Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Advanced IGP Features	17%	– OSPF advanced features 1. Special area types and applications 2. Fast convergence technologies 3. Route summarization and filtering – IS-IS advanced features 1. Level-1/Level-2 routing control 2. Convergence optimization 3. Route aggregation
Topic 2: Network Troubleshooting	10%	– Routing protocol fault diagnosis – Switching and link fault handling – Structured troubleshooting methodology – Performance and service fault resolution
Topic 3: Network Cutover	7%	– Pre-cutover verification – Post-cutover validation – Cutover planning and risk assessment – Implementation and rollback strategy
Topic 4: IPv6 Routing	20%	– IPv6 address planning and configuration – OSPFv3 and IS-IS for IPv6 – Transition mechanisms (dual-stack, tunnel, translation) – BGP4+ for IPv6
Topic 5: Advanced Ethernet Technologies	10%	– Ethernet link aggregation and reliability – QinQ and VLAN mapping – Port isolation and security features – VLAN aggregation and MUX VLAN
Topic 6: MPLS Technologies	19%	– MPLS OAM and protection – MPLS fundamentals and label distribution – LDP and RSVP-TE protocols – MPLS VPN (L3VPN, L2VPN)
Topic 7: Network O&M	7%	– Log and alarm management – Configuration management and backup – Network monitoring and performance analysis – Routine maintenance procedures
Topic 8: Advanced BGP Features	10%	– Routing policies and filtering – BGP multi-homing and load balancing – BGP route selection and attributes – Route reflectors and confederations

NEW QUESTION 103
On the network shown in the figure, the network administrator configures the DHCP snooping trust function on the switch.
* GE0/0/2 is a trusted interface (connected to the DHCP Server).
* GE0/0/3 is an untrusted interface (potential attacker).

Which of the following statements are true about the two interfaces?
Options:

When receiving a DHCP response packet on GE0/0/2, the switch forwards the packet through GE0/0/1.

When receiving a DHCP request packet on GE0/0/2, the switch forwards the packet through GE0
/0/3.

When receiving a DHCP response packet on GE0/0/3, the switch forwards the packet through GE0/0/1.

When receiving a DHCP request packet on GE0/0/3, the switch forwards the packet through GE0
/0/2.

NEW QUESTION 104
In the OSPFv3 network shown in the figure, area 1 is a normal area. Which of the following descriptions are wrong? (Multiple choice)

Since R4 and R5 are in the same area, the LSDB of R4 and R5 are the same.

Since R4 and R5 are in the same area, if R4 generates an Intra-Area-Prefix-LSA, the LSA will be sent to R5.

Since area 1 is not continuous, R4 and R5 cannot obtain the route to the IPv6 address of each other’s interface

Since R4 and R5 are in the same area, if R5 imports an external route, R4 does not need to rely on Inter-Area-Router-LSA when calculating the external route.

NEW QUESTION 105
On the OSPFv3 network shown in the figure, area 1 is a common area. Which of the following statements are true?

The LSDBs of R1, R2, and R3 are the same.

If R5 imports an external route, R4 does not need to rely on the Inter-Area-Router-LSA to calculate the external route.

R1, R2, and R3 generate Inter-Area-Prefix-LSAs.

The LSDBs of R4 and R5 are the same.

NEW QUESTION 106
The device operating environment is crucial for stable device operating, including the equipment room, power supply, and heat dissipation. Maintenance personnel must be on site to maintain the device operating environment.

TRUE

FALSE

NEW QUESTION 107
According to this picture, what can we judge? (Multiple choice)

R1’s GE0/0/1 must have Leve1-2 capability

R1’s GE0/0/0 must have the Leve1-2 capability

There must be an LSDB of Leve1-2 on R1

R1 has 2 IS-IS neighbors

NEW QUESTION 108
If the technical migration actions performed on the network will affect the existing network operations, the pre-set operating procedures and risk control measures must be strictly followed when implementing the technical migration project. Such projects are generally defined as cutover projects.
Which of the following operations performed in the existing network is a non-cutover item?

Change the level of IS-IS Level 1-1-2 routers to Level 1-1 in batches

Modify the description information of router interfaces in batches

Change the area type of some OSPF routers to Stub area in batches

Change the method of importing routes into BGP in batches from network to import

NEW QUESTION 109
0SPFV2 is an IGP running on an IPv4 network; 0SPFvV3 is an ICPO running on an IPv6 network the packet types of OSPFV3 and OSPFV2 are the same, including .Hall. message, DD message, LSU message, LSU packets and SAck packets. Which of the following statements is correct about 0SPFV3 packets?

0SPFv3Complete packet authentication using the authentication field in the packet header

OSPFV3The link-local address is used as the source address of the sent packet, and the packet can be forwarded outside the range of the originating link

OSPFv3useIPv6multicast addressFFO2::5heheFFO2:.6sendOSPFv3message

0SPFV3ofHelloThe packet carries the router interfaceIPv6address prefix list

NEW QUESTION 110
If you want to check files under Flash, which command should use?

dir sdl:

dir sd0:

display patch-information

dir flash:

NEW QUESTION 111
On the IS-IS IPv6 network shown in the figure, multi-topology is enabled on all routers.
The ipv6 default-route-advertise always level-1 command is configured in the IS-IS process of R4.

Which of the following routers does not have the default route in its routing table?

NEW QUESTION 112
Network administrator A wants to use the AS-Path Fiter to match the routing entries of the BGP routing attribute AS_PATH [100 200 300]. Network administrator A sorts out the four configurations in the figure. Which of the following configurations can satisfy network administrator A’s requirements? Require?

WayA

WayB

NEW QUESTION 113
The business routes of an enterprise are transmitted in the network, and part of the configuration of PE1 and PE2 is shown in the figure. At this time, CE1 adds a new business network segment and announces it to Area 1 of OSPF 10.

In this scenario, which type of LSA will CE2 receive, which will contain the service network segment newly announced by CE1?

Type 5 LSA

Type 2 LSA

Type 1 LSA

Type 3 LSA

NEW QUESTION 114
On an MPLS network, when a transit device receives an MPLS packet and is ready to swap labels, it finds that the label value after swapping is 0. In this case, which of the following operations will the device perform?
Options:

Removes the label from the MPLS packet and forwards the packet to the next hop.

Pushes label 0 into an outer label of the MPLS packet and forwards the MPLS packet with double labels to the next hop.

Forwards the packet to the next hop without processing the label.

Swaps label 0 with the original label in the MPLS packet and forwards the packet to the next hop.

NEW QUESTION 115
Senior engineers with rich experience can quickly solve faults only by relying on experience, and the efficiency is very high.

TRUE

FALSE

NEW QUESTION 116
VLAN aggregation is configured on a switched network. Sub-VLAN 2 and Sub-VLAN 3 are added to Super-VLAN 10. To enable hosts in different sub-VLANs to communicate with each other, run the following command in the VLANIF 10 view corresponding to the Super-VLAN. (Enter lowercase letters.)

NEW QUESTION 117
In the network shown in the figure, the IP addresses planned for the interconnection interfaces of R1 and R2 have been marked in the figure, but R1 and R2 cannot be Pine connected. Therefore, the network engineer checked the configuration of the R1 and R2 interfaces and judged based on the configuration information that the wrong mask configuration of the R2 interface was the cause of the fault.

True

False

NEW QUESTION 118
The figure shows the LSP information of R1 and R2 on an MPLS network. An administrator runs the ping
3.3.3.3 command on R1. Given this, which of the following statements is true?

The ping packet sent by R1 carries label 1025. After receiving the packet, R2 removes the label and forwards the packet based on IP addresses.

The ping packet sent by R1 does not carry any label. After receiving the ping packet, R2 forwards it based on IP addresses.

The ping packet sent by R1 carries label 1025. After receiving the packet, R2 swaps the label and forwards the packet based on MPLS.

The ping packet sent by R1 does not carry any label. After receiving the ping packet, R2 adds a label to the packet and forwards the packet based on MPLS.

NEW QUESTION 119
In the test phase of cutover, which standards that can indicate the test has been completed?

The configuration check result of the IP device is normal as the standard

Test network business as normal as the standard

The upper-layer application service test carried by the network is normal as the standard

Check that the network is running normally as a standard

NEW QUESTION 120
A network engineer provides a troubleshooting report after rectifying a fault. The actual network is simplified into the one shown in the figure, where:
* R1 and R2 both have OSPF enabled.
* R1 and R2 function as the gateways for PC1 and PC2, respectively.
Given this, which of the following statements are true?

Options:

R1 can ping 192.168.1.22.

R1 can ping 192.168.1.21.

R2 can ping 192.168.1.2.

PC1 and PC2 cannot ping each other.

NEW QUESTION 121
In a large BGP network, there are many peers, which makes configuration and maintenance extremely inconvenient. For BGP peers with the same configuration, they can be added to a BGP peer group for batch configuration, which simplifies the difficulty of management and improves the efficiency of route publishing. When configuring an IBGP peer group, you do not need to specify the AS number of the peer group. When configuring an EBGP peer group, you must specify the AS number of the peer group.

True

False

NEW QUESTION 122
On an enterprise network shown in the figure, EBGP is deployed between CEs and PEs.
CE1 sends a VPN route to PE1.

Which of the following statements are false?
Options:

To enable CE3 to receive the route, run the command peer 10.1.1.1 soo 200:1 on PE1.

If the commands peer 10.1.1.1 soo 200:1 and peer 10.1.2.1 soo 200:1 are run on PE1, CE2 accepts the route.

If the command peer 10.1.3.1 substitute-as is run on PE2, CE3 accepts the route.

If no additional action is taken, CE3 discards the route.

NEW QUESTION 123
Fill in Blanks
by executing___________The command can completely isolate the second and third layer users of different ports on the same LAN and cannot communicate. (Please use English and lowercase letters to complete the command, and the command cannot be abbreviated)

NEW QUESTION 124
As shown in the figure, SF is enabled on all interfaces of the router, the cost value of the link is marked in the figure, and the Loopback0 interface of R2 is advertised in area 1, then the cost value of R1 reaching 10.0.2.2/32 is?

100

150

200

NEW QUESTION 125
On the OSPFv3 network shown in the figure, area 1 is a stub area. Which of the following statements are true?

Default routes exist in the routing tables of R1 and R2.

Both R1 and R2 generate Network-LSAs.

Both R1 and R2 generate Inter-Area-Prefix-LSAs.

Both R1 and R2 generate Intra-Area-Prefix-LSAs.

NEW QUESTION 126
Network administrator A wants to use AS-Path Filter to match the BGP routing attribute AS_PATH[100200300]. Network administrator A sorts out the four configurations in the figure. Which of the following configurations can meet the requirements of network administrator A?