Question-194: You have Cassandra cluster setup using one datacenter having total 3 nodes in it. You created keyspace using the following command.

ALTER KEYSPACE HE_KEPSPACE WITH replication={‘class’ : ‘NetworkTopologyStrategy’ , ‘DC1’ : 1 , ‘DC2’ : 2}

Which of the following statement is true?

1. This command would fail because there is only one datacenter and you have defined the two datacenters in the command.
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Ans: D

Exp: Yes, this command would successful even you don’t have two datacenter. This is one of the good strategies to preplan your Keyspace setup.

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