When two U1900 unified gateways need to form a two-node cluster, the device version, card, and slot sequence of the two U1900 unified gateways must be same.

Question

Options

• ATRUE
• BFALSE

• A
  78% (50)
• B
  22% (14)

Explanation

Option A (TRUE) is correct because two-node cluster configurations require strict hardware and software symmetry to ensure proper failover, load balancing, and synchronization between nodes. The U1900 unified gateway cluster relies on identical device versions, card types, and slot positions so that both nodes can mirror each other's state and seamlessly take over operations without configuration mismatches. If the firmware versions differed, protocol handling or feature support could diverge, causing split-brain scenarios or failover failures; if card types or slot sequences differed, the standby node could not replicate the active node's traffic processing paths exactly.

Option B (FALSE) is incorrect because relaxing any of these requirements - version, card type, or slot order - would introduce asymmetry that breaks the fundamental assumption of a homogeneous cluster, where each node must be a functional mirror of the other.

Memory tip: Think of a two-node cluster as "identical twins" - same DNA (firmware version), same organs in the same positions (cards in matching slots). Any difference makes one twin unable to stand in for the other.

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