# Quiz

+ 1) In TiDB Server, which parameters below would limit single SQL memory consumption? (Please select 2 items)
  + A. `mem-quota-query` to set the SQL maximum memory threshold that can be consumed by a single statement
  + B. `oom-use-tmp-storage` Turn on ephemeral disk
  + C. `rocksdb.defaultcf.block-cache-size`  RocksDB defaultcf Adjusted memory usage
  + D. `rocksdb.writecf.block-cache-size`  RocksDB writecf Adjusted memory usage

-------------------------------------------------------------

Answer: a, b