NEW QUESTION 1
What is the distance between the center frequencies of the channels in the 2.4 GHz band?

• A. 20 MHz
• B. 22 MHz
• C. 5 MHz
• D. 10 MHz

Answer: C

NEW QUESTION 2
Which is the longest interval between 802.11 frames?

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

Answer: C

NEW QUESTION 3
For lobe width, the following description is correct (Select 3 Answers).

• A. In the main lobe range, the power density decreases by half (3dB) relative to the maximum radiation direction.
• B. The narrower the lobes, the better the directionality, the farther the radiation distance, the stronger the anti-interference ability
• C. The pattern usually has two or more petals
• D. The terminal can receive the signal only within the half power angle coverage.

Answer: ABC

NEW QUESTION 4
How many management nodes (B) does the eSight Standard Edition support?

• A. 60
• B. 2000
• C. 5000
• D. 20000

Answer: B

NEW QUESTION 5
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 6
Radio frequency mainly uses spread spectrum technology. Which of the following technologies belong to Spread 2 Answers?

• A. FHSS
• B. DSSS
• C. QPSK
• D. OFDM

Answer: AB

NEW QUESTION 7
What is the command for the Huawei AC6605 to switch between the wired side and the wireless side?

• A. Ctrl+B
• B. Ctrl+X
• C. Ctrl+Y
• D. Ctrl+Z

Answer: B

NEW QUESTION 8
If the AP wants to obtain the IP address of the AC through the DNS server, first obtain the IP address of its own IP address, DHCP server, and DNS.

• A. True
• B. False

Answer: A

NEW QUESTION 9
For areas with roaming requirements, the coverage of neighboring APs is kept above 50% to ensure smooth switching between APs.

• A. True
• B. False

Answer: A

NEW QUESTION 10
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 11
The 802.11 protocol that defines the quality of service in WLAN is .

• A. 802.11f
• B. 802.11i
• C. 802.11e
• D. 802.11n

Answer: C

NEW QUESTION 12
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 13
Which of the following standards organizations is proposed by the CAPWAP protocol?

• A. FCC
• B. IETF
• C. CCC
• D. ETSI

Answer: B

NEW QUESTION 14
In the WDS deployment, which types of bridge networking modes are included (Select 3 Answers)?

• A. Point-to-point mode
• B. Point-to-multipoint mode
• C. Relay bridge mode
• D. Multi-point to multi-point mode

Answer: ABC

NEW QUESTION 15
The following service models can provide end-to-end QoS services, but the scalability is not good.

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

Answer: B

NEW QUESTION 16
Regarding the two major standards of PoE, the following statement is incorrect (Select 2 Answers). The

• A. 802.af standard was established in 2009, and the maximum output power is 30W.
• B. 802.at supports four power levels and only supports Category 5 lines.
• C. 802.af, also known as PoE+, is compatible with 802.at devices.
• D. 802.at, also known as PoE+, is compatible with 802.af device

Answer: AC

NEW QUESTION 17
In the 802.11 frame, what type of frame does the STA's association request and authentication request belong to?

• A. Data frame
• B. Control frame
• C. Management frame
• D. Data frame, control frame, management frame have this function

Answer: C

NEW QUESTION 18
When the two-channel center frequency distance is less than or equal to 25 MHz, there is an overlapping area between the channels, and there may be some interference. Therefore, in order to avoid adjacent channel interference in adjacent area channel planning, the same channel is not allowed.

• A. True
• B. False

Answer: B

NEW QUESTION 19
In an 802.11 frame, the terminal needs to obtain access rights to the wireless medium, and what kind of control message is to be sent?

• A. RTS
• B. CTS
• C. ACK
• D. PS-Poll

Answer: A

NEW QUESTION 20
In the 802.1X protocol, you must have the ability to authenticate and authorize users (Select 3 Answers).

• A. eSight server
• B. client
• C. certifier
• D. authentication server

Answer: B.CD

NEW QUESTION 21
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 22
What are the following WLAN standards for transmission rates up to 54 Mbps and above (Select 3 Answers)?

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

Answer: ACD

NEW QUESTION 23
To configure a WLAN service, you need to add an AC to the U2000.

• A. True
• B. False

Answer: A

NEW QUESTION 24
There are four wireless STAs. Which workstations occupy the channel preferentially according to the following backoff time parameters?

• A. 5
• B. 7
• C. 4
• D. 6

Answer: C

NEW QUESTION 25
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 26
The systematic process of AP RF resource management is.

• A. Acquisition -> Decision -> Analysis -> Execution
• B. Analysis -> Acquisition -> Decision -> Execution
• C. Acquisition -> Analysis -> Execution -> Decision
• D. Acquisition -> Analysis -> Decision -> Execution

Answer: D

NEW QUESTION 27
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 28
The power of the indoor AP is generally mW.

• A. 100
• B. 500
• C. 800
• D. 50

Answer: A

NEW QUESTION 29
When configuring a WLAN network, which WQ template should be bound to the following template?

• A. radio-profile
• B. traffic-profile
• C. security-profile
• D. service-set

Answer: B

NEW QUESTION 30
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