Best Huawei H12-841_V1.5 2026 Training With 316 QA’s [Q65-Q80]

QUESTION 65
In the OSPF protocol for wide area networks, what is the function of Type 4 LSA (ASBR Summary LSA)?

Describes the location information of the ASBR, used by routers within the area to locate the ASBR.

Describes external routing information for the AS and propagates it throughout the AS.

Describe summarized routes between areas to reduce routing table entries.

Describes router information within the network and propagates it within the area.

QUESTION 66
In Huawei’s WAN solution, for the scenario of “high packet loss rate in WAN links causing intermittent VoIP voice calls”, which of the following technologies can “achieve packet loss recovery through redundant data transmission and ensure smooth voice calls”?

Ignoring packet loss and taking no action results in poor voice quality.

Packet loss recovery technology based on forward error correction (FEC) (send redundant data, and the receiving end recovers the lost packets).

Reduce the VoIP voice sampling rate to decrease the amount of data.

Relying solely on TCP retransmission mechanisms to recover lost packet data.

QUESTION 67
(Which of the following is not an advantage of Huawei CloudCampus solution?)

Supports automatic deployment of physical networks

Supports plug-and-play of devices

Unified management of Huawei switches, routers, and storage servers

Supports free mobility

QUESTION 68
In an MPLS VPN network, which of the following descriptions best reflects the core role of the MPLS LDP protocol?

Used for transmitting VPNv4 routing information between PE devices.

Used for assigning public network labels between PE/P devices and establishing label forwarding paths (LSPs).

Used for transmitting user routes between CE and PE devices.

Used for forwarding VPN packets between P devices and identifying VPN instances.

QUESTION 69
In a wide area network (WAN) OSPF deployment, if it is necessary to “merge multiple detailed routes within an OSPF area into a single summarized route to reduce routing table entries”, which of the following should be configured?

OSPF Virtual Link

OSPF route aggregation (Summarization)

OSPF Regional Authentication

OSPF NSSA area

QUESTION 70
In Huawei’s WAN solution, for ” large files (e.g., over 10GB) transmitted across regions “, which of the following technologies can “achieve file segmentation and resume interrupted transmission, thus improving transmission reliability”?

Transfer the entire large file directly without splitting it into chunks; if the transfer is interrupted, it needs to be retransmitted.

File-segmented transmission technology (splitting files into small chunks for independent transmission) + resume interrupted download

Reduce file transfer rate to decrease the probability of interruption.

Transmit only when bandwidth is sufficient, and pause when bandwidth is insufficient.

QUESTION 71
In Huawei’s WAN bandwidth management solution, which of the following functions can “set bandwidth allocation for different service types (such as VoIP, video, and file transfer) (e.g., VoIP
20%, video 50%) to avoid single-service monopolizing bandwidth”?

Bandwidth allocation strategy based on service type

All services share bandwidth, with no percentage restrictions.

Only VoIP service bandwidth is guaranteed; there is no limit on the proportion for other services.

Shut down non-critical services and allow only core services to use bandwidth.

QUESTION 72
In Huawei’s SD-WAN iMaster NCE-WAN management platform, which of the following functions can “perform long-term storage and trend analysis of network operation data (such as link latency and service bandwidth) to assist in capacity planning”?

Real-time data monitoring

Historical Data Storage and Trend Analysis Reports

Equipment hardware failure alarm

Configure compliance checks

QUESTION 73
In troubleshooting MPLS VPN networks, which command should be used to “view the routing and receiving status of BGP VPNv4 neighbors on the PE device”?

display bgp vpnv4 peer [neighbor IP] received-routes

Display IP routing-table VPN instance [instance name]

display mpls lsp

display ospf peer

QUESTION 74
In the WAN BGP protocol, if “route reflectors are configured between IBGP neighbors, and route transmission between the reflector’s client and non-client is normal,” then which of the following loop prevention mechanisms is in effect?

AS_PATH loop prevention (check if the route includes the local AS number)

Route Reflector Cluster List Anti-loop (records reflector cluster IDs to prevent loops)

IBGP split horizon (IBGP neighbors do not forward routes to each other)

MED attribute loop prevention (determining route priority based on MED value)

QUESTION 75
In the wide area network IPv6 transition scenario, which of the following technologies can achieve
“smooth interoperability between IPv4 and IPv6 services” and ensure service continuity? (Multiple choice)

Dual-stack technology (the device runs both IPv4 and IPv6 protocol stacks simultaneously)

NAT64 (enabling IPv6 terminals to access IPv4 resources)

IPv6 over IPv4 tunnels (such as GRE tunnels, which encapsulate IPv6 packets for transmission over IPv4 networks)

Directly disable the IPv4 protocol and force all services to switch to IPv6.

Without transition technology, IPv4 and IPv6 terminals cannot communicate with each other .

QUESTION 76
In Huawei’s WAN solution, for ” backup data transmitted across regions (such as full database backup),” which of the following technologies can “enable breakpoint resumption of backup data transmission and avoid retransmission after interruption”?

Backup data is transferred completely in one go; if interrupted, it must be restarted.

File block-based breakpoint resumption technology (records transmitted blocks and resumes from the breakpoint after interruption).

Reduce backup data transfer rate to decrease the probability of interruption.

Transmit only during off-peak hours at night to avoid interruptions during peak business periods.

QUESTION 77
In the OSPF protocol for wide area networks, which of the following types of LSAs (Link State Advertisements) can “propagate throughout the entire OSPF Autonomous System, describing external routes of the AS”?

Type 1 (Router LSA)

Type 5 (AS External LSA)

Type 3 (Network Summary LSA)

Type 2 (Network LSA)

QUESTION 78
In the OSPF protocol for wide area networks, what is the propagation range of a Type 1 LSA (Router LSA)?

Propagation throughout the OSPF autonomous system

It only propagates within the area where the router that generated the LSA is located.

Propagates in the region where the LSA was generated and its adjacent regions.

Spreads only within the core area (Area 0)

QUESTION 79
(After NAT traversal is enabled, if a NAT device is detected during IKE negotiation between two gateways, ESP packets are encapsulated with a UDP header. Both the source and destination port numbers are set to
________ (Enter only digits.) in the header. This enables ESP packets to pass through the NAT device.)

QUESTION 80
In Huawei’s WAN bandwidth optimization solution, for ” office documents (such as Word and Excel) transmitted across regions”, which of the following technologies can “reduce the transmission of duplicate files and improve efficiency”?

Sort by file size and transfer smaller files first.

Duplicate file filtering based on file fingerprints (files that have already been transmitted will not be transmitted again).

Transfer all files directly without performing duplicate checks.

Compress the file before transmission without changing the number of transmissions.