H12-311 | HUAWEI H12-311 Torrent 2021

NEW QUESTION 1
What is the maximum rate supported by the original 802.11 protocol?

• A. 1
• B. 2
• C. 5.5
• D. 11

Answer: B

NEW QUESTION 2
Unlike the 802.11a/b/g standard, the 802.11n protocol is a dual-band mode of operation (supporting two operating bands of 2.4 GHz and 5 GHz).

• A. True
• B. False

Answer: A

NEW QUESTION 3
When a data frame is sent and acknowledged, what is the time interval to wait before the next data frame is sent ()?

• A. SIFS
• B. IFS
• C. DIFS
• D. PIFS

Answer: C

NEW QUESTION 4
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 5
What is the function of the AC in the wireless network (Select 3 Answers)?

• A. Centralized management AP
• B. Implement roaming function
• C. Send beacon frame
• D. Wireless intrusion detection

Answer: ABD

NEW QUESTION 6
The following is not the AP binding template .

• A. Radio frequency template
• B. AP template
• C. ESS template
• D. Planning table template

Answer: D

NEW QUESTION 7
Which of the following statements is correct (Select 3 Answers)?

• A. WDS can transmit the data of the wired network through the wireless network as a relay architecture, thereby transmitting the network data to another wireless network environment or another wired network.
• B. The wireless network bridging function usually refers to one-to-one, but the WDS architecture can do one-to-many.
• C. WDS allows wireless APs to bridge (relay) wirelessly, but bridged wireless APs cannot provide coverage at the same time.
• D. Because virtual network lines are formed through wireless networks, WDS is also called wireless network bridging.

Answer: ABD

NEW QUESTION 8
The following is a description of TKIP encryption. The error is .A. The length of the IV used in

• A. TKIP encryption is 24bits.
• B. TKIP encryption uses the same encryption algorithm as WEP encryption.
• C. The motivation for developing TKIP encryption is to upgrade the security of legacy WEP hardware.Added the mechanism of key generation, management and delivery in
• D. TKIP encryptio

Answer: A

NEW QUESTION 9
CCMP encryption is more secure than TKIP encryption because of its security.

• 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. Added a message integrity check mechanism

Answer: C

NEW QUESTION 10
The correct statement about WDS is (Select 2 Answers)?

• A. Connect two separate LAN segments through a wireless bridge and provide data transmissionbetween them
• B. WDS uses the 2.4GHz band as the bridge frequency band by default.
• C. Scalability is good, and there is no need to lay new wired connections and deploy more APs
• D. Huawei indoor AP does not support WDS functio

Answer: AC

NEW QUESTION 11
In the direct connection network, the AP and the AC establish a CAPWAP tunnel. The management flow must be encapsulated in the CAPWAP tunnel. The data service flow can be encapsulated in the CAPWAP tunnel.

• A. True
• B. False

Answer: A

NEW QUESTION 12
WLAN APs can be powered by (Select 3 Answers).

• A. POE switch
• B. POE adapter
• C. Independent power adapter
• D. RF cable

Answer: ABC

NEW QUESTION 13
Which of the following options are part of the 802.11b/g protocol (Select 3 Answers)?

• A. Different throughput capabilities
• B. Different protocols use different technologies
• C. Different data rates supported
• D. Different working bands

Answer: ABC

NEW QUESTION 14
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 15
Which of the following is included in the 82.802.11 WLAN CSMA/CA mechanism (Select 3 Answers)?

• A. Carrier Sense
• B. Multiple Access
• C. Conflict Detection
• D. Conflict Avoidance

Answer: ABD

NEW QUESTION 16
When WLAN planning is performed in a single area, the factors affecting the number of APs deployed
are (Select 3 Answers).

• A. Number of people accessing in the area
• B. Size of the area
• C. Field strength and bandwidth requirements
• D. Number of network ports

Answer: ABC

NEW QUESTION 17
Which of the following AP modes does not belong to the WDS network?

• A. Root AP
• B. Middle AP
• C. Bridge AP
• D. Leaf AP

Answer: C

NEW QUESTION 18
In China, the WLAN band supported by regulations is

• A. 2.4-2.4835GHz
• B. 5.15-5.25GHz
• C. 5.25-5.35GHz
• D. 5.725-5.850GHz

Answer: AD

NEW QUESTION 19
What are the mandatory standards for wireless LAN security in China?

• A. WiFi
• B. WAPI
• C. WLAN
• D. WiMAX

Answer: B

NEW QUESTION 20
The IEEE 802.11 standard used to define roaming is

• A. IEEE 802.11c
• B. IEEE 802.11h
• C. IEEE 802.11j
• D. IEEE 802.11r

Answer: D

NEW QUESTION 21
The MEth0/0/1 interface on the AC6605 is used for inband network management. The default address is 192.168.1.1/24 and cannot be modified.

• A. True
• B. False

Answer: B

NEW QUESTION 22
Wireless client passive scanning is obtained by receiving what frames to get around the wireless network information?

• A. Beacon frame
• B. Probe Request frame
• C. Authentication frame
• D. Association Request frame

Answer: A

NEW QUESTION 23
Which of the following is a wireless LAN standard originally developed by the IEEE?

• A. IEEE 802.11
• B. IEEE 802.10
• C. IEEE 802.12
• D. IEEE 802.16

Answer: A

NEW QUESTION 24
What is the name of the first radio communication network based on packet technology?

• A. INTERNET
• B. ARPANet
• C. ALOHNET
• D. NSFnet

Answer: C

NEW QUESTION 25
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 26
What is the wireless client's active scanning to get the surrounding wireless network information by sending frames?

• A. Beacon frame
• B. Probe Request frame
• C. Authentication Request frame
• D. Association Request frame

Answer: B

NEW QUESTION 27
The parameter used in the 802.11 frame to check the integrity of the received frame is .

• A. Frame Control
• B. Duration
• C. FCS
• D. Sequence Control Bit

Answer: C

NEW QUESTION 28
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