NSE4 · Question #83
The exhibit shows the Disconnect Cluster Member command in a FortiGate unit that is part of a HA cluster with two HA members. What is the effect of the Disconnect Cluster Member command as given in…
The correct answer is A. Port3 is configured with an IP address for management access. C. The HA mode changes to standalone. Disconnecting a FortiGate from an HA cluster sets its HA mode to standalone and automatically configures a management IP address on a specific port (like port3) if it was previously unconfigured.
Question
The exhibit shows the Disconnect Cluster Member command in a FortiGate unit that is part of a HA cluster with two HA members. What is the effect of the Disconnect Cluster Member command as given in the exhibit. (Choose two.)
Exhibit
Options
- APort3 is configured with an IP address for management access.
- BThe firewall rules are purged on the disconnected unit.
- CThe HA mode changes to standalone.
- DThe system hostname is set to the unit serial number.
How the community answered
(35 responses)- A91% (32)
- B6% (2)
- D3% (1)
Why each option
Disconnecting a FortiGate from an HA cluster sets its HA mode to standalone and automatically configures a management IP address on a specific port (like port3) if it was previously unconfigured.
When a FortiGate is disconnected from an HA cluster, it needs a way to be managed independently. The system automatically configures a default IP address (often 192.168.1.99/24) on a designated port (commonly port3 if available and unconfigured) to allow immediate management access to the newly standalone device.
Disconnecting from HA does not purge firewall rules; the configuration, including firewall policies, remains on the unit, allowing it to function as a standalone device.
The "Disconnect Cluster Member" command explicitly breaks the HA synchronization and role assignment, causing the selected FortiGate unit to revert from being an HA member (master or slave) to operating as a single, independent standalone device.
The system hostname is generally preserved or set to its original non-HA value, not automatically reset to the unit's serial number upon HA disconnection.
Concept tested: FortiGate HA cluster disconnection
Source: https://docs.fortinet.com/document/fortigate/7.4.0/administration-guide/572848/disabling-high-availability
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