H12-311-ENU Braindumps PDF, Huawei H12-311-ENU Exam Cram [Q38-Q61]

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H12-311-ENU Braindumps PDF, Huawei H12-311-ENU Exam Cram

New 2022 H12-311-ENU Sample Questions Reliable H12-311-ENU Test Engine

NEW QUESTION 38
If an AP has been added offline, the AP can go online directly.

True

False

NEW QUESTION 39
The following description of WEP encryption is wrong.

WEP encryption uses a stream encryption algorithm.

WEP encryption adds IV to destroy the regularity of the key. The length of the IV in C.WEP encryption is 48 bits.

WEP encryption allows the device to store four keys at the same time.

NEW QUESTION 40
Which of the following description for PSK certification is correct? (Multiple Choice)

PSK certification need to configure the same pre-shared key in the wireless client and equipment client

WPA and WPA2 are both support PSK certification

The process of PSK certification is like the process of shared-key authentication, so the same safety

PSK certification is through four handshake Key negotiation to verify the legitimacy of the STA side Key

NEW QUESTION 41
Which of the following channels are overlapping channels in WLAN 2.4 GHz band?

6 and 11

3 and 8

4 and 8

4 and 10

NEW QUESTION 42
When configuring a WLAN network, which WQ template should be bound to the following template?

radio-profile

traffic-profile

security-profile

service-set

NEW QUESTION 43
Which is the correct statement of following options? (Multiple choice)

A wireless local area network (LAN) can be divided into several sub-network which require different authentication by SSID Technology.Each sub-network needs independent of the authentication.Only authenticated users can enter the corresponding subnet, to prevent unauthorized users to access the network.

Actually, BSSID is MAC address of the AP, which used to identify the AP management of BSS.BSSID and SSID are one-to-one mapping within the same AP.

The user can implement roaming under different SSID.

In one ESS, the SSID are the same, but each AP with the matching BSSID in one ESS is not the same.If one AP can support many SSID, then AP can distribute different BSSID to correspond these SSID.

NEW QUESTION 44
If the terminal supports both 5 GHz and 2.4 GHz functions at the same time, the AP can be configured to control such terminals to preferentially access 5 GHz.

TRUE

FALSE

NEW QUESTION 45
In the Fit AP network, which of the following authentication methods does not require AC to participate during the authentication process?

Shared key authentication

802.1X authentication

PSK authentication

Portal authentication

NEW QUESTION 46
In a large-scale wireless network deployment scenario, when the AC is configured as “Layer 3 Networking + Side-by-Side Mode + Direct Forwarding”, where should the wireless user’s gateway be located?

Convergence layer on the Layer 3 switch

One-arm router on the

AC on the

NEW QUESTION 47
What are the reasons why APs cannot go online (Select 3 Answers)?

The configuration of the DHCP address pool is incorrect. The AP cannot obtain the address.

The AP uses static discovery but the IP address of the AC is incorrect.
The version of

AP is inconsistent with the version of AC.

The controller adopts no-auth authentication mode.

NEW QUESTION 48
Which of the following statements are correct? (Multiple Choice)

When the user is in the process of web authentication, which is before obtaining IP address successfully, triggered by the user’s HTTP message; at this time, forced to redirect to the portal server, carries on the authentication process

When the user is in the process of web authentication, which is after obtaining IP address successfully, triggered by the user’s HTTP message; at this time, forced to redirect to the portal server, carries on the authentication process

WPA2 adopted authentication of 802.1X

WPA only support TKIP encryption technology

NEW QUESTION 49
Huawei AP can also implement AP-based load balancing in Fat AP mode.

True

False

NEW QUESTION 50
WEP encryption’ data algorithm using which algorithm?

RC4

AES

CCMP

asymmetric encryption

NEW QUESTION 51
For lobe width, the following description is correct (Select 3 Answers).

In the main lobe range, the power density decreases by half (3dB) relative to the maximum radiation direction.

The narrower the lobes, the better the directionality, the farther the radiation distance, the stronger the anti-interference ability

The pattern usually has two or more petals

The terminal can receive the signal only within the half power angle coverage.

NEW QUESTION 52
To configure a WLAN service, you need to add an AC to the U2000.

True

False

NEW QUESTION 53
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.

display version can see that the VRP version number of today’s devices is 5.70.

The equipment has been running continuously for 1 day, 23 hours and 33 minutes.

Currently the device has used 512 Mbytes of system memory.

The total flash size of the device is 128 Mbytes.

NEW QUESTION 54
What are the common troubleshooting methods in WLAN networks? (Multiple choice)

Block troubleshooting method

Classification troubleshooting method

Segmentation troubleshooting method

Replacement troubleshooting method

NEW QUESTION 55
If a WLAN network fails, engineer A needs to locate the fault. Which of he following fault location process is correct?
1. Check if the air interface signal is normal.
2. Check if the AC and uplink are normal.
3. Check if the AP is working properly.
4. Check if the terminal service is normal.
5. Check if the intermediate network device is working properly.

4-1-3-5-2

4-2-5-3-1

1-2-3-5-4

4-3-2-5-1

NEW QUESTION 56
In order to facilitate management and maintenance, the AP power supply mode generally prefers to supply power.

Independent power adapter

POE switch

POE adapter

AC power supply

NEW QUESTION 57
How many channels can the 2.4 GHz band be divided into?

NEW QUESTION 58
If an AP has been added offline, the AP can go online directly without authentication.

True

False

NEW QUESTION 59
What is the radio physical layer technology used by 802.11ac?

OFDM

QAM

FHSS

DSSS

NEW QUESTION 60
If the terminal supports both 5 GHz and 2.4 GHz functions, the AP can be configured to control such terminals to preferentially access 5 GHz.

True

False

NEW QUESTION 61
What are the reasons why users may not be able to connect to the WLAN properly? (Multiple choice)

AP is blacklisted

Weak wireless signal

AP has too many connected users

There are many sources of signal interference around

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