Online Access Free H12-321-ENU Exam Questions

Which statements about 802.1x and RADIUS is TRUE?

• A.802.1x and RADIUS are different names of the same technology.
• B.802.1x and RADIUS are different technologies, but they are often used together for user access control.
• C.802.1x is a technological system, in which RADIUS is included.
• D.802.1x and RADIUS are different and are not used together.

Which of the following statements are TRUE about communication between the active/standby ACs with servers in WLAN HSB mode? (Multiple Choice)

• A.In VRRP HSB scenarios, both the active and standby ACs advertise the virtual IP address or MAC address to servers. The two ACs communicate with servers using the virtual IP address.
• B.In load balancing mode, only one AC communicates with servers.
• C.In VRRP HSB scenarios, the active and standby ACs can advertise the virtual IP address or MAC address to servers. Only one AC communicates with servers using the virtual IP address.
• D.In load balancing mode, both the active and standby ACs communicate with servers.

As shown in the figure, a 12.2 m high tree is an obstacle on a 10 km point-to-point communication link. The distance between the tree and one of the antennas is 4 km.
If the signal transmission frequency is 5.8 GHz, what is the minimum installation height of the receive and transmit antennas based on the following formula and the Fresnel zone radius at the 4 km point?

• A.16 m
• B.26 m
• C.22 m
• D.19 m

Which of the following commands is used to check whether automatic channel selection and automatic transmit power selection are enabled for APs?

• A.[AC-wlan-view] display radio all
• B.[AC-wlan-view] display vap-profile name profile-name
• C.[AC-wlan-view] display rrm-profile name profile-name
• D.[AC-wlan-view] display station ssid wlan-net

Which statement about the Mesh whitelist is TRUE?

• A.The system can automatically create whitelist.
• B.The whitelist can replace the WPA.
• C.The whitelist can prevent access of unauthorized users.
• D.The whitelist can control topology and prevent unauthorized devices from accessing the Mesh network.