Virtual H12-311 Rapidshare 2021

NEW QUESTION 1
The indicator used to describe the extent to which the antenna converges on the transmit power is.

• A. Broadband
• B. Power
• C. Gain
• D. Polarity

Answer: C

NEW QUESTION 2
TKIP encryption is more secure than WEP encryption because (Select 3 Answers).

• A. Adopt a longer IV
• B. Added a key distribution mechanism, no longer using a single key
• C. Adopting a more complex encryption algorithm
• D. Using a stronger data verification algorithm

Answer: ABD

NEW QUESTION 3
The following description of the management VLAN is correct.

• A. Mainly responsible for transmitting data when WLAN users access the Internet
• B. PVID VLAN under WLAN ESS interface
• C. Service VLAN under the service set template
• D. Responsible for establishing the CAPWAP tunnel between the AC and the AP.

Answer: D

NEW QUESTION 4
Commonly used RF cables for WLAN systems are (ABC) (Select 3 Answers).

• A. RG-8 jumper
• B. 1/2" (inch) super soft feeder
• C. 1/2" (inch) feeder
• D. 13/8" (inch) feeder

Answer: ABC

NEW QUESTION 5
What is the command to check online users on the AC?

• A. display users all
• B. display user-interface console 0
• C. display local-user
• D. display access-user

Answer: D

NEW QUESTION 6
In the PoE terminology, the PSU is called the Power Supply Unit, which refers to the power supply unit, such as the Ethernet interface of the PoE switch.

• A. True
• B. False

Answer: B

NEW QUESTION 7
Because 802.11a supports the same maximum rate as 802.11g supports, the 802.11a protocol is backward compatible with the 802.11g protocol.

• A. True
• B. False

Answer: B

NEW QUESTION 8
The antenna obtains the gain by means of .

• A. Using a power amplifier in the antenna system
• B. Making the antenna radiation more concentrated
• C. Use high efficiency antenna feeder
• D. Use low standing wave ratio equipment

Answer: B

NEW QUESTION 9
According to the following output, the following statement is correct (Select 3 Answers).
<Quidway> display version
Huawei Versatile Routing Platform Software
VRP (R) software, Version 5.70 (AC6605 V200R001C00) Copyright (C) 2003-2012 Huawei TECH CO., LTD
Quidway AC6605-PWR Routing Switch uptime is 0 week, 1 day, 23 hours, 33 minutes H852V26S 0(Master) : uptime is 0 week, 1 day, 23 hours, 33 minutes
512M bytes DDR Memory 128M bytes FLASH
Check the running status of the AC6605.

• A. display version can see that the VRP version number of today's devices is 5.70.
• B. The equipment has been running continuously for 1 day, 23 hours and 33 minutes.
• C. Currently the device has used 512 Mbytes of system memory.
• D. The total flash size of the device is 128 Mbyte

Answer: ABD

NEW QUESTION 10
What is the area covered by a single AP?

• A. BSA
• B. ESA
• C. SSA
• D. TSA

Answer: A

NEW QUESTION 11
After a wireless user connects to a wireless signal point, they cannot obtain an IP address. What are the possible reasons (Select 2 Answers)?

• A. The DHCP server is not configured in the VLAN where the user is locate
• B. The dhcp-enable command is not configured on the
• C. wlan-ess virtual interface.
• D. The user-specified authentication password is incorrect.
• E. The MAC address of the user device has been added to the blacklis

Answer: AB

NEW QUESTION 12
Spread-spectrum technology is the basis for transmitting wireless data using the ISM band.

• A. True
• B. False

Answer: A

NEW QUESTION 13
Which of the following options is the maximum rate supported by the 802.11g protocol?

• A. 11Mbps
• B. 22Mbps
• C. 54Mbps
• D. 108Mbps

Answer: C

NEW QUESTION 14
What are the QoS service models (Select 3 Answers).

• A. Best Effort model
• B. IntServ model
• C. FIFO model
• D. DiffServ model

Answer: ABD

NEW QUESTION 15
For the AC6605, the following commands can be used to check whether the AP is online.

• A. display ap online all
• B. display ap all
• C. display ap-type all
• D. dispay ap-run-info all

Answer: B

NEW QUESTION 16
The conditions for switching triggers are generally set (Select 2 Answers).

• A. Start the switch after the STA reaches a certain distance from the original AP.
• B. Set the signal strength ratio between the current AP and the neighbor AP, and switch to the threshold.
• C. Check the packet loss rate and start switching when the packet loss rate reaches a certain value.
• D. Start the switch when the network speed is very slow when it is associated with the original A

Answer: BC

NEW QUESTION 17
The maximum number of layers supported by the location topology in Huawei eSight is layer.

• A. 7
• B. 8
• C. 9
• D. 10

Answer: D

NEW QUESTION 18
In a dual-link backup network, what do the APs use to distinguish between the primary AC and the standby AC (Select 3 Answers)?

• A. Priority
• B. AC IP address
• C. AC load situation
• D. AC response AP time

Answer: ABC

NEW QUESTION 19
The basic service set is the basic component of an 802.11 network and consists of a set of workstations that communicate with each other.

• A. True
• B. False

Answer: A

NEW QUESTION 20
The Barker code is an 11-bit sequence (for example, 10110111000), which has advantages in wireless transmission, which can effectively reduce interference, but reduces efficiency.

• A. True
• B. False

Answer: A

NEW QUESTION 21
What are the options that can be configured under sevice-set (Select 3 Answers)?

• A. The SSID string can be configured via ssid xxxx
• B. can be bound to wmm-profile
• C. Can call wlan-ess interface and configure service-vlan
• D. You can configure the forwarding mode as direct-forward or tunnel-forward

Answer: ACD

NEW QUESTION 22
Among the following options, it is not the main purpose of roaming.

• A. Avoid excessive authentication time during roaming, resulting in packet loss or even service interruption.
• B. Ensure user authorization information remains unchanged.
• C. Ensure that the user's IP address is unchanged.
• D. Ensure that the user's network rate is unchange

Answer: D

NEW QUESTION 23
The naming of the "AP6010DN" is incorrect.

• A. AP in AP6010DN is the specific prefix of the AP of the enterprise network.
• B. AP6010DN "601" represents the standard indoor placement type 1st generation
• C. The “D” in the AP6010DN represents that the AP is a dual-band AP and supports the 2.4GHz and 5GHz bands.
• D. "N" in AP6010DN means AP is an 802.11n A

Answer: D

NEW QUESTION 24
The CAPWAP protocol supports both Split Mac and Local Mac modes of operation.

• A. True
• B. False

Answer: A

NEW QUESTION 25
For outdoor long-distance point-to-point backhaul, the antenna of should be selected.

• A. High gain, small lobe width
• B. High gain, large lobe width
• C. Omnidirectional
• D. Low gain, large lobe width

Answer: A

NEW QUESTION 26
On a WDS network, a root AP can connect to multiple leaf APs, but a leaf AP can connect to only one root AP.

• A. True
• B. False

Answer: A

NEW QUESTION 27
Use the display ap all command to view the MAC, type, and running status of an AP.

• A. True
• B. False

Answer: A

NEW QUESTION 28
Which of the following protocols support the 2.4 GHz band (Select 3 Answers)?

• A. 802.11a
• B. 802.11b
• C. 802.11g
• D. 802.11n

Answer: BCD

NEW QUESTION 29
The lobe width is a very important parameter commonly used in directional antennas. It refers to the angle between the antenna and the radiation pattern below the peak dB The width.

• A. 3
• B. 4
• C. 5
• D. 6

Answer: A

NEW QUESTION 30
The following command can be used to configure the port of the Huawei switch to be in hybrid mode.

• A. s wichport hybrid
• B. hybrid enable
• C. port link-type hybrid
• D. port mode hybrid

Answer: C

NEW QUESTION 31
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