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The ''MAC magic'' value must be modified under the following condition:

A.
There is more than one cluster connected to the same VLAN
Answers
A.
There is more than one cluster connected to the same VLAN
B.
A firewall cluster is configured to use Multicast for CCP traffic
Answers
B.
A firewall cluster is configured to use Multicast for CCP traffic
C.
There are more than two members in a firewall cluster
Answers
C.
There are more than two members in a firewall cluster
D.
A firewall cluster is configured to use Broadcast for CCP traffic
Answers
D.
A firewall cluster is configured to use Broadcast for CCP traffic
Suggested answer: A

Explanation:

Comprehensive and Detailed Explanation: The ''MAC magic'' value, also known as the ''Cluster Global ID'', is a mechanism that identifies different clusters on the same network segment. It is used to prevent MAC address conflicts and ensure proper load balancing among cluster members. The ''MAC magic'' value is a hexadecimal number that is appended to the virtual MAC address of the cluster interface. By default, the ''MAC magic'' value is set to 1 for all clusters, but it must be changed manually if there is more than one cluster connected to the same VLAN. Otherwise, the clusters will not be able to communicate with each other or with external hosts.

The ''MAC magic'' value does not need to be modified under the other conditions listed in the question. The firewall cluster can use either Broadcast or Multicast for CCP traffic without affecting the ''MAC magic'' value. The number of members in a firewall cluster also does not affect the ''MAC magic'' value, as long as they belong to the same cluster and have the same Cluster Global ID.

asked 16/09/2024
Duc Hai
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