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Huawei H12-351_V1.0 Practice Test - Questions Answers, Page 5

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Which of the following items is not involved in the HLD phase?

A.
Capacity planning
A.
Capacity planning
Answers
B.
Network design
B.
Network design
Answers
C.
AP position planning
C.
AP position planning
Answers
D.
Deployment planning
D.
Deployment planning
Answers
Suggested answer: C

Explanation:

According to the Huawei documents and resources, the HLD phase is the high-level design phase of a WLAN project. It involves the following items:

Capacity planning: Determines the number and types of devices required for the WLAN network based on the customer's requirements and network scale.

Network design: Designs the network topology, IP addressing scheme, VLAN division, security policies, and other network parameters for the WLAN network.

Deployment planning: Plans the deployment sequence, schedule, resources, and risks for the WLAN project.

AP position planning is not involved in the HLD phase. It is part of the LLD phase, which is the lowlevel design phase of a WLAN project. It involves the detailed design of AP positions, antenna types, channel allocation, power adjustment, and other wireless parameters for the WLAN network.

Therefore, C is the correct answer. Reference: :

https://support.huawei.com/enterprise/en/doc/EDOC1100158948/9a0d5c37/wlan-project-design

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.)

A.
ATP
A.
ATP
Answers
Suggested answer: A

Explanation:

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.

Reference: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/atp

In the early phase of a project, after the project requirements are clarified, the project owner should Checklist to describe the customer's requirements. (Capitalize the first letter of each word.)

A.
Customer Requirement Specification
A.
Customer Requirement Specification
Answers
Suggested answer: A

Explanation:

Customer Requirement Specification (CRS) is a document that needs to be output after the project requirements are clarified. The CRS describes the customer's requirements in detail and serves as the basis for subsequent project design and delivery.

Reference: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/crs

Which of the following statements are true about the WLAN site survey In different typical scenarios? (Select All that Apply)

A.
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.
A.
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.
Answers
B.
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 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.
Answers
C.
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.
C.
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.
Answers
D.
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 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.
Answers
Suggested answer: A, B, C, D

Explanation:

Only: All statements are true about the WLAN site survey in different typical scenarios.

Reference: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/wlan-sitesurvey

When calculating the number of APs, you can divide the total required bandwidth by the maximum bandwidth of a single AP.

A.
True
A.
True
Answers
B.
False
B.
False
Answers
Suggested answer: B

Explanation:

When calculating the number of APs, you cannot simply divide the total required bandwidth by the maximum bandwidth of a single AP. You also need to consider other factors such as signal coverage area, user density, interference level, and application type.

Reference: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/calculationof-the-number-of-aps

Which of the following statements about WLAN roaming and signal strength Is false?

A.
Smart roaming can be enabled on the WAC to help ST As roam and associate with APs with better signals.
A.
Smart roaming can be enabled on the WAC to help ST As roam and associate with APs with better signals.
Answers
B.
Generally, a STA roams when it detects that the signal strength is less than -75 dBm.
B.
Generally, a STA roams when it detects that the signal strength is less than -75 dBm.
Answers
C.
STAs can roam between WACs in dual-link HSB mode.
C.
STAs can roam between WACs in dual-link HSB mode.
Answers
D.
In most cases, the signal strength of a STA should range from -45 dBm to -65 dBm.
D.
In most cases, the signal strength of a STA should range from -45 dBm to -65 dBm.
Answers
Suggested answer: B

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.

Reference: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/wlanroaming-and-signal-strength

DRAG DROP

Drag the reasons for AP onboarding failures on the left to the corresponding troubleshooting operations on the right.


Question 47
Correct answer: Question 47

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. Reference: :

https://support.huawei.com/enterprise/en/doc/EDOC1100158948/9a0d5c37/ap-onboardingfailures

After the HTTP domain name is entered in a browser, the user Is not redirected to the Portal URL.

Which of the followings is the possible cause for this failure? (Select All that Apply)

A.
The DNS server IP address is not added to the authentication-free rule.
A.
The DNS server IP address is not added to the authentication-free rule.
Answers
B.
The URL template is incorrectly configured.
B.
The URL template is incorrectly configured.
Answers
C.
HTTPS redirection is disabled.
C.
HTTPS redirection is disabled.
Answers
D.
The web server is incorrectly configured.
D.
The web server is incorrectly configured.
Answers
Suggested answer: A, B, D

Explanation:

C is false because HTTPS redirection is not required for Portal authentication to work properly.

Reference:

https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/troubleshootingportal-authentication-failures

Which of the following configurations may cause ST As to experience a slow Internet connection?

(Select All that Apply)

A.
QoS CAR is configured in the traffic profile.
A.
QoS CAR is configured in the traffic profile.
Answers
B.
Radio 1 of APs is disabled.
B.
Radio 1 of APs is disabled.
Answers
C.
TKIP encryption is configured, causing a low link setup rate.
C.
TKIP encryption is configured, causing a low link setup rate.
Answers
D.
Rate limiting is configured in the SSID profile.
D.
Rate limiting is configured in the SSID profile.
Answers
Suggested answer: A, C, D

Explanation:

B is false because disabling radio 1 of APs does not affect the Internet connection speed of STAs that use radio 2.

Reference:

https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/troubleshooting-slowinternet-connection


When a STA roams from API to AP2 at Layer 2, AP2 notifies its neighbors of from this STA is encapsulated in a tunnel and sent to API for forwarding.

A.
True
A.
True
Answers
B.
False
B.
False
Answers
Suggested answer: B

Explanation:

When a STA roams from AP1 to AP2 at Layer 2, AP2 notifies its neighbors of the MAC address learned from this STA. The MAC address is not encapsulated in a tunnel and sent to AP1 for forwarding.

Instead, AP1 deletes the MAC address entry of the STA and releases the IP address lease.

Reference: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/layer-2-roaming

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