NS0-520 Question #172: Real Exam Question with Answer & Explanation

The correct answer is A. Six nodes are required C. Three racks are required. The quorum rule states that to make changes to the configuration in our cluster, we need to have more than half of the nodes available. This prevents configuration conflicts if we lose connectivity between the nodes in our cluster. So, if we have only 2 racks and 4 nodes we could

Question

A customer is deploying a SAN cluster of A700 nodes and wants to ensure that the SAN cluster will maintain a quorum in the event of a rack level power failure. Which two statements are true in this scenario? (choose two.)

Options

ASix nodes are required
BFour nodes are required
CThree racks are required
DTwo racks are required

Explanation

The quorum rule states that to make changes to the configuration in our cluster, we need to have more than half of the nodes available. This prevents configuration conflicts if we lose connectivity between the nodes in our cluster. So, if we have only 2 racks and 4 nodes we could never get more than half of the nodes available if one of those racks power fails. We need 6 nodes separated on 3 racks, so we can have more than half of the nodes available if one of those racks power fails.

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