# Quiz 

+ About `tiup cluster check` , what is the wrong description?
  + `A.` Can be used to detect if CPU and memory meet TiDB database deployment requirements
  + `B.` Can be used to detect whether operating system parameters meet TiDB database deployment requirements
  + `C.` TiDB database needs to be deployed before it can be used
  + `D.` Some configurations cannot be fixed through

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Reference answer: C