H12-311 Online Practice Questions and Answers

Which of the following standards is WLAN (Select 2 Answers)?

A. 802.11a/b/g/n

B. WPA

C. WPA2

D. 802.11i

How many channels does China support in the 2.4 GHz band?

A. 11

B. 13

C. 3

D. 5

Which of the following is included in the 802.11n MAC layer improvement technology (Select 2 Answers)?

A. Frame aggregation technology

B. MIMO technology

C. Block confirmation technology

D. Beamforming technology

For a wireless network with WPA2 PSK authentication and SSID broadcast, the user can double-click on the SSID and enter the correct username and password to access the network.

A. True

B. False

For shared key authentication, the following description is wrong.

A. After using shared key authentication, WEP encryption must be used.

B. Shared key requires the user and AP to use the same shared key

C. For thin APs, the shared key is preset in the AC.

D. The disadvantage of shared key is that it is not scalable and not very secure.

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

Which of the following are related parameters of the Traffic template (Select 2 Answers).

A. 802.3 Priority Mapping Policy

B. CAC Policy

C. Tunnel priority mapping strategy

D. ACK strategy

The number of APs supported by the AC6605 by default is.

A. 4

B. 0

C. 8

D. 10

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

A. True

B. False

What are the prerequisites for users to implement Layer 3 roaming (Select 3 Answers)?

A. The two APs of the user roaming switch must have the same SSID.

B. Two APs for user roaming switch must have the same VLAN

C. User roaming requires two AP signals to be covered with overlapping areas

D. The SSID released by the two APs of the user roaming switch must have the same authentication method.