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Question 38 - HPE6-A68 discussion

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A customer wants to implement Virtual IP redundancy, such that in case of a ClearPass server outage, 802.1x authentications will not be interrupted. The administrator has enabled a single Virtual IP address on two ClearPass servers.

Which statements accurately describe next steps? (Select two.)

A.
The NAD should be configured with the primary node IP address for RADIUS authentication on the 802.1x network.
Answers
A.
The NAD should be configured with the primary node IP address for RADIUS authentication on the 802.1x network.
B.
A new Virtual IP address should be created for each NAD.
Answers
B.
A new Virtual IP address should be created for each NAD.
C.
Both the primary and secondary nodes will respond to authentication requests sent to the Virtual IP address when the primary node is active.
Answers
C.
Both the primary and secondary nodes will respond to authentication requests sent to the Virtual IP address when the primary node is active.
D.
The primary node will respond to authentication requests sent to the Virtual IP address when the primary node is active.
Answers
D.
The primary node will respond to authentication requests sent to the Virtual IP address when the primary node is active.
E.
The NAD should be configured with the Virtual IP address for RADIUS authentications on the 802.1x network.
Answers
E.
The NAD should be configured with the Virtual IP address for RADIUS authentications on the 802.1x network.
Suggested answer: D, E

Explanation:

In an Aruba network, APs are controlled by a controller. The APs tunnel all data to the controller for processing, including encryption/decryption and bridging/forwarding data. Local controller redundancy provides APs with failover to a backup controller if a controller becomes unavailable.

Local controller redundancy is provided by running VRRP between a pair of controllers. The APs are then configured to connect to the "virtual-IP" configured for the VRRP instance.

Reference: http://www.arubanetworks.com/techdocs/ArubaOS_64x_WebHelp/Content/ArubaFrameStyles/VRR P/Redundancy_Parameters.htm

asked 16/09/2024
Arkadius Thoma
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