[Apr 18, 2024] H12-351_V1.0 Exam Dumps 100% Same Q&A In Your Real Exam
H12-351_V1.0 Test Engine Dumps Training With 62 Questions
NEW QUESTION # 13
In a VRRP HSB scenario, if the VRRP preemption delay is set to a small value, which of the following problems may occur after a master/backup switchover? (Select All that apply)
- A. Service data on the master and backup WACs is lost.
- B. A master/backup switchback is triggered too quickly.
- C. The batch backup process cannot be started.
- D. Backup information is incomplete.
Answer: B,D
Explanation:
Explanation
According to the Huawei documents and resources, the VRRP preemption delay is the time that an AC waits before preempting another AC with a lower priority. If the VRRP preemption delay is set to a small value, the following problems may occur after a master/backup switchover:
B: A master/backup switchback is triggered too quickly. If the master AC recovers soon after a switchover, it may preempt the backup AC again and become the master AC. This may cause frequent switchovers and affect network stability C: Backup information is incomplete. If the backup AC takes over services from the master AC too quickly, it may not have received all the data synchronized from the master AC through HSB. This may cause service interruption or data loss Therefore, B and C are the correct answers. References:
https://support.huawei.com/enterprise/en/doc/EDOC1100064368/80fc2ebd/example-for-configuring-vrrp-hsb
2: https://support.huawei.com/enterprise/en/doc/EDOC1100096325/1a753937/vrrp-hsb-configuration
NEW QUESTION # 14
Master NCE-Campuslnsight analyzes network issues during correlation analysis of poor-QoE clients, including coverage, interference throughput, and hardware issues.
- A. False
- B. True
Answer: B
Explanation:
Explanation
iMaster NCE-CampusInsight analyzes network issues during correlation analysis of poor-QoE clients, including coverage, interference, throughput, and hardware issues. It also provides suggestions for network optimization based on the analysis results.
References:
https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/correlation-analysis-of-poor-qoe-clie
NEW QUESTION # 15
Which of the fallowings is not an IPv6 address type?
- A. Anycast address
- B. Broadcast address
- C. Unicast address
- D. Multicast address
Answer: B
Explanation:
Explanation
Broadcast address is not an IPv6 address type. IPv6 does not support broadcast addressing, but uses multicast addressing instead. The other options are valid IPv6 address types. Unicast address identifies a single interface, multicast address identifies a group of interfaces, and anycast address identifies multiple interfaces but delivers packets to only one of them.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/ipv6-address-types
NEW QUESTION # 16
Which of the following advantages does BSS coloring provide in Wi-Fi 6? (Select All that Apply)
- A. More efficient channel use
- B. Higher concurrency in high-density scenarios
- C. Enhanced encryption on the air interface
- D. Higher packet rate on the air interface
Answer: A,B,D
Explanation:
Explanation
BSS coloring is a feature introduced in Wi-Fi 6 that assigns different colors to different BSSs to reduce co-channel interference. BSS coloring provides the following advantages:
Higher packet rate on the air interface: BSS coloring reduces collisions between packets from different BSSs on the same channel, improving packet transmission efficiency.
More efficient channel use: BSS coloring allows spatial reuse of channels by different BSSs, increasing channel utilization.
Higher concurrency in high-density scenarios: BSS coloring reduces interference among neighboring APs and improves network performance in high-density scenarios.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/bss-coloring
NEW QUESTION # 17
In a dual-link HSB scenario, after an AP sets up CAPWAP links with the active and standby WACs, which of the following types of packets does the AP periodically send to the WACs to detect link status?
- A. Join
- B. Keepalive
- C. Echo
- D. DTLS
Answer: C
Explanation:
Explanation
In a dual-link HSB scenario, after an AP sets up CAPWAP links with the active and standby WACs, the AP periodically sends Echo packets to the WACs to detect link status. The Echo packets are sent every 30 seconds by default.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/dual-link-hsb
NEW QUESTION # 18
Which of the following statements are true about the WLAN site survey In different typical scenarios? (Select All that Apply)
- A. In an office scenario, the load-bearing columns and partitions affect the signal coverage. If an integrated ceiling is used, deploy APs near maintenance entrances. If a metal ceiling is used, mount APs on the ceiling or wall.
- B. In a classroom scenario. If the walls are made of reinforced concrete, the signal attenuation Is high. In this case, you are advised to test the attenuation during the site survey. Additionally, pay attention to the locations of ELV rooms in the teaching building.
- C. In a stadium scenario, the onsite environment is complex and cabling is difficult. Therefore, confirm with the property management company about ELV rooms and cabling. If the transmission distance is too long, consider deploying more switches. During the survey, focus on the interference between APs and AP mounting modes.
- D. In a ward-round scenario, high requirements are posed on the coverage field strength, roaming effect, and bandwidth. Determine the interference of medical equipment and the areas where Wi-Fi signals are not allowed.
Answer: A,B,C,D
Explanation:
Explanation
Only: All statements are true about the WLAN site survey in different typical scenarios.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/wlan-site-survey
NEW QUESTION # 19
Which of the following are typical 802. IX authentication modes? (Select All that apply)
- A. EAP termination
- B. EAP-MD5
- C. EAP-TLS
- D. EAP relay
Answer: A,D
Explanation:
Explanation
According to the Huawei documents and resources, EAP termination and EAP relay are typical 802.1X authentication modes between the access device and authentication server. In EAP termination mode, the access device terminates EAP packets and encapsulates them into RADIUS packets. In EAP relay mode, the access device directly encapsulates the received EAP packets into RADIUS using EAP over RADIUS (EAPoR) packets2. Therefore, A and B are the correct answers. References:
https://support.huawei.com/enterprise/en/doc/EDOC1100086527
NEW QUESTION # 20
Either of the two APs that have established a mesh connection can send a Mesh Peering Close frame to the other AP to tear down the mesh connection.
- A. False
- B. True
Answer: B
Explanation:
Explanation
A mesh connection can be torn down by either of the two APs that have established it by sending a Mesh Peering Close frame to the other AP. This frame indicates that the sender no longer wants to maintain the mesh connection.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/mesh-networking
NEW QUESTION # 21
Which of the following statements about VXLAN is false?
- A. Layer 2 and Layer 3 VXLAN gateways must maintain VBDIF interfaces. Otherwise, users cannot communicate with each other through these interfaces.
- B. A Layer 3 VXLAN gateway is used for inter-subnet communication on a VXLAN network and communication with external non-VXLAN networks.
- C. A VBDIF interface is a logical interface created based on a BD. It is similar to a VLANIF interface on a traditional network.
- D. A Layer 2 VXLAN gateway forwards traffic to a VXLAN network and can also be used for Intra-subnet communication on the same VXLAN network.
Answer: A
Explanation:
Explanation
B is false because only Layer 3 VXLAN gateways need to maintain VBDIF interfaces for inter-subnet communication on a VXLAN network or communication with external non-VXLAN networks. Layer 2 VXLAN gateways do not need VBDIF interfaces.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/vxlan-gateway
NEW QUESTION # 22
802. 11r fast roaming (over-the-air) is enabled on the WLAN shown in the figure. A STA roams from AP1 to AP2. Sort the steps in chronological order during the 802.11r fast roaming process between WACs.
Answer:
Explanation:
Explanation
According to the Huawei documents and resources, the chronological order during the 802.11r fast roaming process between WACs is as follows:
2.The STA accesses the network through API. This is the initial association process before roaming.
1.The STA initiates an 802.11 FT authentication request to AP2. This is the first step of the roaming process when the STA moves to a new AP.
3.AP2 starts the reassociation timer, and sends an 802.11 FT authentication response to the STA. This is the second step of the roaming process when AP2 responds to the STA's request and sets a timer for reassociation.
4.The STA generates and installs a P TK based on the information contained in the response frame. This is the third step of the roaming process when the STA derives a new pairwise key for encryption.
5.The STA sends a reassociation request to AP2. This is the fourth step of the roaming process when the STA requests to reassociate with AP2.
6.AP2 generates and installs a PTK according to PMK-RI and information contained in the request frame. This is the fifth step of the roaming process when AP2 derives the same pairwise key as the STA.
7.After receiving the reassociation request, AP2 disables the reassociation timer, and then sends a reassociation reg onse to the STA. This is the sixth step of the roaming process when AP2 confirms the reassociation with the STA and stops the timer.
8.The STA receives the response frame of AP2. The roaming process is complete. This is the final step of the roaming process when the STA completes the handover to AP2.
Therefore, 2, 1, 3, 4, 5, 6, 7, 8 is the correct answer. References:
https://support.huawei.com/enterprise/en/doc/EDOC1100169459/8d79210e/configuring-wireless-mesh-networki
NEW QUESTION # 23
Which of the following statements about EAP relay and EAP termination are false? (Select All that apply)
- A. In EAP termination mode, an access device extracts client authentication information from the EAP packets sent by a client and encapsulates the information using the standard RADIUS protocol. The access device supports only the EAP MD5-Challenge authentication method.
- B. The EAP termination mode simplifies the processing on an access device and supports various authentication methods. However, this mode requires an authentication server to support EAP and have high processing capability.
- C. In EAP relay mode, an access device extracts information from EAP packets, encapsulates the information into RADIUS packets, and sends the RADIUS packets to an authentication server.
- D. In EAP termination mode, an access device encapsulates EAP packets sent by an 802. IX client Into RADIUS packets, without processing the data in the EAP packets.
Answer: B,D
Explanation:
Explanation
A: In EAP termination mode, an access device encapsulates EAP packets sent by an 802. IX client Into RADIUS packets, without processing the data in the EAP packets. This statement is false because in EAP termination mode, an access device extracts information from EAP packets, encapsulates the information into RADIUS packets, and sends the RADIUS packets to an authentication server2.
D: The EAP termination mode simplifies the processing on an access device and supports various authentication methods. However, this mode requires an authentication server to support EAP and have high processing capability. This statement is false because it describes the EAP relay mode, not the EAP termination mode2.
Therefore, A and D are the correct answers. References: 2:
https://support.huawei.com/enterprise/en/doc/EDOC1100086527
NEW QUESTION # 24
Drag the reasons for AP onboarding failures on the left to the corresponding troubleshooting operations on the right.
Answer:
Explanation:
Explanation
According to the Huawei documents and resources, the troubleshooting operations for the AP onboarding failures are as follows:
APS fail to be authenticated by the WAC: Whitelist the APS. The WAC can authenticate APs based on their MAC addresses or SNs. If an AP is not whitelisted on the WAC, it cannot be authenticated and onboarded.
License resources on the WAC are insufficient: Expand the license capacity. The WAC can manage a limited number of APs based on its license. If the license resources are insufficient, some APs cannot be onboarded.
APS fail to obtain IP addresses: Check the DHCP server. The APs need to obtain IP addresses from a DHCP server before they can communicate with the WAC. If the DHCP server is not configured or reachable, the APs cannot obtain IP addresses and onboard.
APS fail to ping the WAC: Check the network between the WAC and APS. The APs need to ping the WAC to discover its IP address and establish a CAPWAP tunnel. If there is a network problem between the WAC and APs, such as incorrect VLAN configuration or firewall blocking, the APs cannot ping the WAC and onboard.
Therefore, APS fail to be authenticated by the WAC - c, License resources on the WAC are insufficient - b, APS fail to obtain IP addresses - d, APS fail to ping the WAC - a is the correct answer. References: :
https://support.huawei.com/enterprise/en/doc/EDOC1100158948/9a0d5c37/ap-onboarding-failures
NEW QUESTION # 25
Which of the following statements about EAP relay and EAP termination are false? (Select All that apply)
- A. In EAP termination mode, an access device extracts client authentication information from the EAP packets sent by a client and encapsulates the information using the standard RADIUS protocol. The access device supports only the EAP MD5-Challenge authentication method.
- B. The EAP termination mode simplifies the processing on an access device and supports various authentication methods. However, this mode requires an authentication server to support EAP and have high processing capability.
- C. In EAP relay mode, an access device extracts information from EAP packets, encapsulates the information into RADIUS packets, and sends the RADIUS packets to an authentication server.
- D. In EAP termination mode, an access device encapsulates EAP packets sent by an 802. IX client Into RADIUS packets, without processing the data in the EAP packets.
Answer: B,D
Explanation:
Explanation
A: In EAP termination mode, an access device encapsulates EAP packets sent by an 802. IX client Into RADIUS packets, without processing the data in the EAP packets. This statement is false because in EAP termination mode, an access device extracts information from EAP packets, encapsulates the information into RADIUS packets, and sends the RADIUS packets to an authentication server2.
D: The EAP termination mode simplifies the processing on an access device and supports various authentication methods. However, this mode requires an authentication server to support EAP and have high processing capability. This statement is false because it describes the EAP relay mode, not the EAP termination mode2.
Therefore, A and D are the correct answers. References: 2:
https://support.huawei.com/enterprise/en/doc/EDOC1100086527
NEW QUESTION # 26
Master NCE-Campuslnsight can comprehensively record and analyze Interference. Which of the following parameters are recorded? (Select All that Apply)
- A. Air interface congestion fulfillment rate
- B. Number of interference SSIDs
- C. Interference strength
- D. Interference fulfillment rate
- E. Recommended channels
Answer: B,C,E
Explanation:
Explanation
B and E are not parameters recorded by iMaster NCE-CampusInsight for interference analysis. The other options are parameters recorded by iMaster NCE-CampusInsight to comprehensively record and analyze interference.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/interference-analysis
NEW QUESTION # 27
Which of the following user access authentication modes are supported In Huawel's CloudCampus Solution?
(Select All that Apply)
- A. Portal authentication
- B. 802. IX authentication
- C. MAC address authentication
Answer: A,B,C
Explanation:
Explanation
Huawei's CloudCampus Solution supports three user access authentication modes: 802.1X authentication, MAC address authentication, and Portal authentication.
References:
https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/user-access-authentication-modes
NEW QUESTION # 28
WPA3 has the following advantages over WPA and WPA2: supports WPA3-SAE, provides a more secure handshake protocol, enhances the algorithm strength, and supports Suite A cryptography.
- A. False
- B. True
Answer: B
Explanation:
Explanation
WPA3 has the following advantages over WPA and WPA2:
Supports WPA3-SAE, which provides more secure authentication and key management than PSK.
Provides a more secure handshake protocol than 802.11i, which can resist offline dictionary attacks and protect forward secrecy.
Enhances the algorithm strength from AES-128 to AES-192 or AES-256.
Supports Suite A cryptography, which provides higher security levels for government or military networks.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/wpa3
NEW QUESTION # 29
An AP may preferentially use the BTM mode to steer some STAs. With which of the following protocols are such STAs compliant?
- A. 802.11k
- B. 802.11v
- C. 802.11r
- D. 802.11i
Answer: B
Explanation:
Explanation
An AP may preferentially use the BTM mode to steer some STAs that are compliant with 802.11v protocol.
BTM stands for BSS Transition Management, which is a feature defined in 802.11v protocol that allows an AP to send a request to a STA to switch to another BSS.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/btm
NEW QUESTION # 30
Which of the following statements about WLAN roaming and signal strength Is false?
- A. Generally, a STA roams when it detects that the signal strength is less than -75 dBm.
- B. In most cases, the signal strength of a STA should range from -45 dBm to -65 dBm.
- C. Smart roaming can be enabled on the WAC to help ST As roam and associate with APs with better signals.
- D. STAs can roam between WACs in dual-link HSB mode.
Answer: A
Explanation:
Explanation
B is false because generally, a STA roams when it detects that the signal strength is less than -70 dBm or -65 dBm, not -75 dBm.
References:
https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/wlan-roaming-and-signal-strength
NEW QUESTION # 31
In 802. IX authentication using port-based access control, once a user is authenticated successfully on a port, subsequent users on this port can access the network without authentication. When the authenticated user goes offline, all other users are denied access to the network.
- A. False
- B. True
Answer: B
Explanation:
Explanation
According to the Huawei documents and resources, 802.1X authentication using port-based access control is a method that allows only one user to access the network through a port at a time. If a user is authenticated successfully on a port, subsequent users on this port can access the network without authentication. When the authenticated user goes offline, all other users are denied access to the network . Therefore, A is the correct answer. References: 1: https://support.huawei.com/enterprise/en/doc/EDOC1100086527
NEW QUESTION # 32
In mesh networking, APs have different roles. Drag the AP roles on the left to the role descriptions on the right.
Answer:
Explanation:
Explanation
MP: Mesh node that uses IEEE 802.11 MAC and PHY protocols for wireless communication. This node supports automatic topology discovery, automatic route discovery, and data packet forwarding. It can provide both mesh service and user access service1.
MPP: MP node that connects a WMN to MPs on other types of networks. This node can function as a portal for communication between internal mesh nodes and external networks1.
Neighbor MP: Neighboring MP with which an MP prepares to establish a mesh link1.
Candidate MP: AP that directly communicates with a mesh node2.
https://support.huawei.com/enterprise/en/doc/EDOC1100064365/90f2391e/configuration-examples-for-mesh
2:
https://support.huawei.com/enterprise/en/doc/EDOC1100169459/8d79210e/configuring-wireless-mesh-networki
NEW QUESTION # 33
During a project lifecycle, the______ document needs to be output after the high level design be output after the low level design is complete. (Enter the acronyms in capital letters.)
Answer:
Explanation:
ATP
ATP stands for Acceptance Test Plan, which is a document that needs to be output after the low level design is complete. The ATP describes the acceptance criteria and test cases for the project.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/atp
NEW QUESTION # 34
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