[Cassandra Wiki] Update of "FAQ" by AaronMorton

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The "FAQ" page has been changed by AaronMorton.
The comment on this change is: fixed typo.
http://wiki.apache.org/cassandra/FAQ?action=diff&rev1=110&rev2=111

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   * The replication factor (decides ''how many'' nodes are in the replica set for a given row)
   * The replication strategy (decides ''which'' nodes are part of said replica set)
  
- In the case of the SimpleStrategy, replicas are placed on succeeding nodes in the ring. The first node is determined by the partitioner and the row key, and the remainder are placed on succeeding node. In the case of NetworkTopologyStrategy placement is affected by data-center and wrack awareness, and the placement will depend on how nodes in different racks or data centers are placed in the ring.
+ In the case of the SimpleStrategy, replicas are placed on succeeding nodes in the ring. The first node is determined by the partitioner and the row key, and the remainder are placed on succeeding node. In the case of NetworkTopologyStrategy placement is affected by data-center and rack awareness, and the placement will depend on how nodes in different racks or data centers are placed in the ring.
  
  It is important to understand that Cassandra ''does not'' alter the replica set for a given row key based on changing characteristics like current load, which nodes are up or down, or which node your client happens to talk to.