[Apr-2022] H12-311 Dumps are Available for Instant Access using VCEPrep [Q69-Q92]

NO.69 If the AP’s transmit power is 1mW, it is converted to dBm and then dBm.

NO.70 The AP or AC performing the connectivity test must be online.

True

False

NO.71 The following service models can provide end-to-end QoS services, but the scalability is not good.

Best Effort model

IntServ model

FIFO model

DiffServ model

NO.72 There are many video conferences in large companies, and QoS generally adopts the service model.

Best Effort model

IntServ model

FIFO model

DiffServ model

NO.73 When deploy AP on several floors of a building, which of the following factors are needed to pay attention to? (Multiple Choice)

the material of the wall

other interfering signals

in order not to affect beautiful, AP should be hidden in the ceiling

unified planning channel

NO.74 If an AP has been added offline, the AP can go online directly without authentication.

True

False

NO.75 What are the upgrade modes of Huawei Wireless AP? (Multiple Choice)

ac-mode

ap-mode

ftp-mode

sftp-mode

NO.76 Which algorithm is used for CCMP encryption?

RC4

AES

SMS4

Michael

NO.77 The conditions for switching triggers are generally set (Select 2 Answers).

Start the switch after the STA reaches a certain distance from the original AP.

Set the signal strength ratio between the current AP and the neighbor AP, and switch to the threshold.

Check the packet loss rate and start switching when the packet loss rate reaches a certain value.

Start the switch when the network speed is very slow when it is associated with the original AP.

NO.78 What is the name of the first radio communication network based on packet technology?

INTERNET

ARPANet

ALOHNET

NSFnet

NO.79 Which of the following is wireless LAN standards originally formulated by IEEE?

IEEE 802.11

IEEE 802.10

IEEE 802.12

IEEE 802.16

NO.80 Which of the following is the command to restart the AC6605?

<Quidway> reload

<Quidway> reboot

[Quidway]reload

[ Quidway] reboot

NO.81 For outdoor WLAN coverage, the following statement is correct (Select 3 Answers).

The higher the antenna gain, the stronger the antenna directivity and the weaker the radiation gain directly below the antenna.

The feeder interface must match the selected antenna

The length of the feeder must not exceed 2 meters.

Outdoor antennas should not blindly pursue high gain

NO.82 The following description of the splitter and coupler is correct .

Power splitter and coupler are equal power allocation

Power splitter is equal power distribution, coupler is unequal power distribution

Power splitter is unequal power distribution, coupler is equal power distribution

Power splitter and coupler are unequal power distribution

NO.83 What are the QoS service models (Select 3 Answers).

Best Effort model

IntServ model

FIFO model

DiffServ model

NO.84 The algorithm used for CCMP encryption is .

RC4

AES

SMS4

Michael

NO.85 What is the maximum number of APs that can be managed by the ACU board of the Huawei plug-in controller?

1024

256

512

128

NO.86 If the interface of the switch is enabled with PoE, only those POE powered devices can be connected to these interfaces.

True

False

NO.87 If the forwarding mode of an enterprise wireless network is direct forwarding, the Fit AP can convert the 802.11 data packet into an Ethernet packet, and then encapsulate the packet into a CAPWAP encapsulation and transmit the data packet to the AC through the CAPWAP tunnel.

True

False

NO.88 How many management nodes can be supported by eSight standard edition?

2000

5000

20000

NO.89 Which of the following statement is correct about WDS? (Multiple Choice)

Two independent local area network (LAN) via wireless bridge connection, and provides data transmission between them

WDS default to 2.4 GHz frequency band as bridge frequency band

Good extensibility, and without laying a new cable connection and deploy more AP

Huawei indoor AP does not support function of WDS

NO.90 After the wireless user connects to the wireless signal point, the IP address cannot be obtained. What are the possible reasons? (Multiple Choice)

DHCP server is not configured in the VLAN where the user is located.

The wrong service vlan is configured.

User specified authentication password is incorrect

MAC address of the user device has been blacklisted.

NO.91 What are the mandatory standards for wireless LAN security in China?

WiFi

WAPI

WLAN

WiMAX

NO.92 The electrical performance indicators of the antenna include (Select 3 Answers).

Gain

Lobe width