--- title: "Cloud DB for Cache glossary" slug: "clouddbforcache-glossary" updated: 2026-09-17T09:25:07Z published: 2026-09-17T09:25:07Z canonical: "guide.ncloud-docs.com/clouddbforcache-glossary" stale: true --- > ## Documentation Index > Fetch the complete documentation index at: https://guide.ncloud-docs.com/llms.txt > Use this file to discover all available pages before exploring further. # Cloud DB for Cache glossary Available in Classic and VPC You must know some terms to use Cloud DB for Cache. The glossary and its description are as follows: ### Backup Feature of Cloud DB for Cache to view backup information set for each server to keep your cache data of subscribing users and perform restoration with backup files ### Config Group Feature of Cloud DB for Cache to group created DB Servers, assign the same configuration value to servers in the group, and manage them efficiently ### Event Feature of Cloud DB for Cache server to collect occurred events and view their history ### Master Main server with the high availability feature being used ### Mode DB Cluster and DB Simple as types of DB ### Monitoring Features of Cloud DB for Cache to view server performance related to the running DB Server and monitoring information related to the operating system ### DB Cluster DB can distribute traffic through data sharding using Master and Slave methods ### DB Service Group name for DB Server by roles ### DB Simple Default DB using the Master and Slave method ### Role Stand Alone, Master, Standby-Master as three types of roles of DB Server ### Stand Alone Stand-alone server that does not use the high availability feature ### Standby-Master Backup server with the high availability feature being used ### Node Refers to DB Server in Cloud DB for Cache provided in the cloud environment ### Data sharding A technique to partition multiple DBMS for processing large amounts of data, dividing the data outside the DBMS rather than withing it ### Master node Main server in Cluster ### Shard Data unit partitioned in DB Cluster ### Salve node Backup server in Cluster Note For more information on terms, see [Glossary](https://www.ncloud.com/guideCenter/glossary) on the NAVER Cloud Platform portal.