Get 100% Success with Latest HCIP-Datacom H12-831_V1.0 Exam Dumps Feb 16, 2026 [Q49-Q70]

NEW QUESTION 49
As shown in the figure, R1, R2, R3, and R4 are in the same PLs domain, and LDP is used to distribute IPLS labels between devices.
R4 is the Egress LSR of the FEC 4.4.4.0/24. If you want to achieve R1 access 4.4.4.0/24, R4 does not need to query the label table but can know the forwarding priority of the data, then the outgoing label of R3 for the FEC should be:____. (Please fill in the Arabic numerals directly, without symbols)

NEW QUESTION 50
IS-IS is a link state routing protocol that uses the SPF algorithm for routing calculations. A park has deployed IPv4 and IPv6 at the same time and runs IS-IS to achieve network interconnection. As shown in the figure, the network IPv4 and IPv6 have the same overhead, and R1 and R4 only support IPv4. By default, in the calculated IPv6 shortest path tree, the next hop device for R2 to access R6 is () (Note: The device name must be consistent with the figure, such as: R1)

NEW QUESTION 51
On the OSPF network shown in the figure, area 1 is a stub area, area 2 is a totally stub area, and area 3 is an NSSA.
Which of the following LSAs does not exist in areas 1, 2, and 3?

Type 2

Type 4

Type 1

Type 3

NEW QUESTION 52
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

True

False

NEW QUESTION 53
Using the display startup command, you can view the running system software, running configuration file, startup system software, and startup configuration file, as well as the paths where these files are stored.
Options:

TRUE

FALSE

NEW QUESTION 54
Which of the following commands can be used to view information about BGP VPNv4 routes and BGP private network routes on PEs interest

display bgp routing-table address-family vpnv4

display bgp vpnv4 routing-table

display bgp routing-table ipv4-family vpnv4

display vpnv4 bgp routing-table

NEW QUESTION 55
The following six tools cannot be used to match BGP routing entries?

Community Filter

advancedA, CL

basicA, CL

IP Prefix List

NEW QUESTION 56
In order to speed up the perception of link failures in the IS-IS network, IS-IS can be linked with BFD.

TRUE

FALSE

NEW QUESTION 57
If the migration preparation is insufficient, which of the following problems may occur?
Options (Multiple Choice):

When an interface cannot go up but no network cable tester is available, it is difficult to determine whether the interface hardware or cable is faulty.

The migration fails, and the configuration file is not backed up. As a result, the service rollback fails.

A hardware fault occurs on a board, but no spare board is available.

Engineers cannot arrive at the migration site at the scheduled time.

NEW QUESTION 58
Ethernet is a network that supports broadcasting. Once there is a loop in the network, this simple broadcasting mechanism will cause catastrophic consequences.
Which of the following phenomena may be caused by loops? (Multiple choice)

CPU usage exceeds 70%

The device cannot log in remotely

When you use the display interface command to view interface statistics on the device, it is found that the interface receives a large number of broadcast packets

Severe packet loss during network testing through the ping command

NEW QUESTION 59
If the BFD session goes down, the direct link will fail.

True

False

NEW QUESTION 60
In the MPLS network, there are different operation types for labels, among which the meaning of the “pop” action is:

Replace the top label with another value

existMPLSAdd the top label to the label stack

Replace the top label with another set of labels

existMPLSRemove the top label from the label stack

NEW QUESTION 61
As shown in the figure, all interfaces of the router enable DSPF. The cost value of the link is marked in the figure. R2 The LoopbackD interface is advertised in area 1, then the cost of R1 reaching 10.2/32 is?

200

150

50

100

NEW QUESTION 62
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.

NEW QUESTION 63
On the OSPFv3 network shown in the figure, area 1 is a stub area, area 2 is a common area, and area 3 is an NSSA. Which of the following LSAs is displayed only in area 2?

Router-LSA

Link-LSA

Intra-Area-Prefix-LSA

AS-External-LSA

NEW QUESTION 64
A router LSA is shown in the figure. Which of the following statement is wrong?

The Router ID of this router is 10.0.12.1

This router is DR

The router has established adjacency

This router supports the import of external routes

NEW QUESTION 65
According to the configuration shown in the figure below, you can know that R4 has an interface advertised into IS-IS?

1

3

2

0

NEW QUESTION 66
. OSPFv2 is an IGP running on an IIPv4 network. OSPFV3 is an IGP running on an IPv6 network. Compared with OSPFv2, OSFv3 has similar LSA, but the function is slightly different. The following is the description of the LSA function of OSPFv3. Please drag the LSA to the correct LSA function column.

NEW QUESTION 67
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.

TRUE

FALSE

NEW QUESTION 68
As shown in the figure, the MP_BGP neighbor relationship is established between PE1 and PE2 through the Loopback0 interface. After the configuration is completed, it is found that CE1 and CE2 cannot learn routes from each other. Which of the following options will cause this problem? (Multiple choice)

PE1 or PE2 is not enabled with neighbors in the BGP-VPNv4 unicast address family view

The VPN instance parameters on PE1 or PE2 are incorrectly configured

The LSP tunnel between PE1 and PE2 is not established

The routing protocol configuration between PF1 or PE2 and the respective CE is incorrect

NEW QUESTION 69
The path that IP packets pass through on an MPLS network is called a label switched path (LSP). An LSP is a bidirectional path that specifies the transmission direction of data flows.

TRUE

FALSE

NEW QUESTION 70
On the network shown in the figure, PC1 and PC2 are connected to the same switch (SW1) and belong to the same VLAN.

Which of the following are possible causes of a communication failure between PC1 and PC2?
Options: