# Quiz 

+ Which of the following hardware and software settings are recommended for TiDB clusters? (Select 2)
  + `A.` If your business is sensitive to query latency, you can use a hybrid deployment of TiDB Server and PD Server. Hybrid deployment of TiDB Server and PD Server is not recommended for TiKV instances
  + `B.` It is not recommended to enable THP in the configuration of the TiDB database
  + `C.` Bond0 is recommended for the configuration of NIC bond
  + `D.` It is recommended to enable NUMA for TiDB databases
  + `E.` TiDB database requires firewall to be turned off

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Reference answer: B, D