A Zero Downtime Upgrade of a cluster:
A. Upgrades all cluster members except one at the same time.
B. Is only supported in major releases (R70 to R71, R71 to R77).
C. Requires breaking the cluster and upgrading members independently.
D. Treats each individual cluster member as an individual gateway.
A Zero Downtime Upgrade of a cluster:
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A Zero Downtime Upgrade of a cluster:
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