Correct Answer : LRU
Explanation : Memcached use LRU to free up memory when it becomes full.
Correct Answer : Stats
Explanation : The Memcached stats command returns server statistics such as PID, version, connections, and so on.
Correct Answer : Quit
Explanation : The quit command is used to close the connection.
Correct Answer : One
Explanation : Each Memcached has one unique key.