H12-311_V3.0 Exam Training Practice Tests (Huawei HCIA-WLAN V3.0)]

Question 1

The following figure shows the WLAN topology of an enterprise. If the tunnel forwarding mode is used, which of the following paths may be used on the network?

A. AP → SW3 → SW2 → SW1 B. AP → SW3 → SW2 → AC → SW2 → SW3 → SW2 → SW1 C. AP → AC → SW2 → SW1 D. AP → SW3 → SW2 → AC → SW2 → SW1

Correct Answer: D

Question 2

At present, the security policy based on user authentication that is widely used in the enterprise network is () (Select 2 Answers)

A. WPA1 PSK+TKIP/CCMP B. WPA1 802.1X+TKIP/CCMP C. WPA2 802.1X+TKIP/CCMP D. WPA2 PSK+TKIP/CCMP

Correct Answer: B,C

Question 3

Which of the following types of frames does a STA send to obtain surrounding wireless network information during active scanning?

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

Correct Answer: A

Question 4

Which of the following statements is true about shared key authentication?

A. For a Fit AP, the shared key is preconfigured on an AC. B. Shared key authentication requires that a STA and an AP have the same key preconfigured. C. The shared key enables easy scalability and provides high security. D. WEP encryption is not mandatory when shared key authentication is used.

Correct Answer: B

Question 5

Which of the following statements about WLAN roaming are false?

A. APs with which a STA is associated before and after roaming must work on the same channel. B. APs with which a STA is associated before and after roaming can work on different channels. C. During roaming, the STA sends a Reassociation Request frame containing home AP information to the foreign AP. D. During roaming, the STA sends an Association Request frame containing home AP information to the foreign AP.

Correct Answer: A,D

Question 6

The following description about dual-link backup networking is incorrect ()

A. Dual-link backup technology improves network reliability at important network nodes and ensures business stability B. Prepare AC Always be in the power-on state C. Active and standby AC The network service configuration on the Internet must be consistent D. exist AP With active and standby AC In the process of establishing active and standby links, the link established first must be the active link

Correct Answer: D

Question 7

In China, legally supported WLAN The frequency band has ().
(Select 2 Answers)

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

Correct Answer: A,C

Question 8

802.11b is a protocol based on Orthogonal Frequency Division Multiplexing (OFDM for short) technology

A. True B. False

Correct Answer: B

Question 9

Which of the following commands is not necessarily run in the WLAN view?

A. ap-group name xxx B. capwap source interface vlanif 100 C. ssid-profile name xxx D. ap auth-mode mac-auth

Correct Answer: B

Question 10

A large number of devices appear AP and AC How to deal with the version mismatch failure ().

A. Upgrade the versions to match each other B. an examination POE Is the power supply normal C. replace AP equipment D. Replace the switch

Correct Answer: A

Question 11

It can be connected with the antenna via ().

A. 50 ohm RF coaxial cable B. CATV coaxial cable C. Network cable D. Power cord

Correct Answer: A

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Question 12

DSSS The modulation methods used are BPSK and QPSK .

A. True B. False

Correct Answer: A

Question 13

If you want to create an open authentication security template, the following correct configuration is ().

A. AC-WLAN-view] security-profile name security-1 id 1
[AC-WLAN-sec-prof-security-1] open authentication-method open-system
[AC-WLAN-sec-prof-security-1] security-policy open
[AC-WLAN-sec-prof-security-1] quit B. AC-WLAN-view] security-profile name security-1 id 1
[AC-WLAN-sec-prof-security-1] wpa2 authentication-method open-system
[AC-WLAN-sec-prof-security-1] security-policy wpa2
[AC-WLAN-sec-prof-security-1] quit C. AC-WLAN-view] security-profile name security-1 id 1
[AC-WLAN-sec-prof-security-1] wep authentication-method open-system
[AC-WLAN-sec-prof-security-1] security-policy wep
[AC-WLAN-sec-prof-security-1] quit D. AC-WLAN-view] security-profile name security-1 id 1
[AC-WLAN-sec-prof-security-1] wpa authentication-method open-system
[AC-WLAN-sec-prof-security-1] security-policy wpa
[AC-WLAN-sec-prof-security-1] quit

Correct Answer: C

Question 14

If there is a high demand for WLAN capacity in a coverage area, the construction method of () should be considered.

A. Combination of indoor distribution system B. Combination of outdoor distribution system C. Indoor installation D. Outdoor AP+ directional antenna

Correct Answer: C

Huawei HCIA-WLAN V3.0 - H12-311_V3.0 Exam Practice Test