# Quiz

+ What is the incorrect description of the use of TiFlash?
  + `A` . TiFlash is not good at handling high concurrency, QPS should not be too high in general
  + `B` . TiFlash recommends hybrid deployment on servers
  + `C` . TiFlash supports two deployment methods: new deployment and capacity scale out
  + `D` . Deploying TiFlash requires the placement rules function of the PD to be enabled

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B