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Huawei H12-351_V1.0 - HCIE-WLAN (Written) V1.0

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Total 163 questions

A company needs to provide Wi-Fi coverage spanning a radius of about 100 m in a flat outdoor area. In the center of the area, APsand 2.4 GHz omnidi recto id i antennas (11 dBi gam and 15° vertical beam width) are installed on the top of a six-story building. A laptop 70 m away from this building cannot receive Wi-Fi signals. Which of the following statements is true about the cause analysis and solution for this symptom?

A.

The performance of the laptop ' s network adapter is poor. The solution is to replace the laptop.

B.

The antennas arc installed too high. The solution is to move the antennas to a lower position.

C.

The antenna gain is too low to cover such a distance. The solution is to replace the antennas with higher-gain ones.

D.

The antenna angle is small. The solution is to adjust the angle of the antennas.

On a campus network, which of the following problems may occur when you manually create a static VXLAN tunnel? (Select All that Apply)

A.

Although the static VXLAN tunnel mode supports the distributed gateway scenario, the configuration involves a heavy workload and is complex to adjust.

B.

A static VXLAN tunnel uses related protocols on the control plane, consuming device resources.

C.

If N devices need to establish VXLAN tunnels, you need to manually configure the ingress replication list up to N x (N-l)/2 times.

D.

Remote MAC addresses can be learned only through data flooding.

After RADIUS packet retransmission is triggered, if the device detects that the RADIUS server status is Down, the device marks the RADIUS server status as Down. If the maximum number of retransmissions has not been reached, which of the following will occur?

A.

The device retransmits the authentication request packet only once to the RADIUS server.

B.

The device retransmits the packet at most three more times, and stops retransmission once it receives a response packet or the maximum number of retransmissions is reached.

C.

The device continues to retransmit packets until it receives a response packet or the maximum number of retransmissions is reached.

D.

The device stops retransmission immediately.

Which of the following statements is true about the networking between WLAN users and mDNS service providers?

A.

It must be a Layer 2 network.

B.

It must be a Layer 3 network.

C.

It must be a Layer 3 network with an mDNS relay deployed.

D.

It must be a Layer 2 network with an mDNS gateway deployed.

The WAC supports the URL filtering functions. When users send HTTP or HTTPS requests for accessing URLs, URL filtering can be used to permit, generate alarms for, or block the requests. To match all URLs ended with aspx, such as www.example.com/news/solutions.aspx, www.example.com/it/price.aspx, and 10.1.1.1/sports/abc.aspx, which of the following URL matching items should be set?

A.

Aaspx

B.

#aspx

C.

*aspx

D.

$aspx

E.

.aspx

Which of the following statements about fingerprint-based positioning technology are true? (Select All that Apply)

A.

The positioning engine generates a virtual fingerprint library through calculations based on the AP deployment and environment information.

B.

Terminals learn from each other to form a fingerprint library that can be shared.

C.

APs collect surrounding environment information to form a fingerprint library.

D.

The fingerprint map is obtained through onsite information collection.

Arrange the following steps in the correct order for upgrading the leader AP and Fit AP.

HQoS is a hierarchical queue scheduling mechanism. Which of the following is the correct scheduling sequence?

A.

Subscriber queue > Group queue > Flow queue > Destination port

B.

Flow queue > Subscriber queue > Group queue > Destination port

C.

Subscriber queue > Flow queue > Group queue > Destination port

D.

Flow queue > Group queue > Subscriber queue > Destination port

DHCPv6 stateful autoconfiguration enables a DHCPv6 server to automatically assign IPv6 addresses, PD prefixes, and other network configuration parameters, such as DNS, NIS, and SNTP server address.

A.

TRUE

B.

FALSE

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.

DTLS

B.

Join

C.

Echo

D.

Keepalive