Explanation:flushRouterConfig clears the current cluster information cached by a mongos instance and reloads all sharded cluster metadata from the config database. 5. Point out the wrong statement :
A. moveChunks provides the ability to combine chunks on a single shard
B. setShardVersion is used to set the config server version
C. shardCollection enables the sharding functionality for a collection, allowing the collection to be sharded
D. None of the mentioned
Answer:A
Explanation:flushRouterConfig clears the current cluster information cached by a mongos instance and reloads all sharded cluster metadata from the config database. 5. Point out the wrong statement :
A. moveChunks provides the ability to combine chunks on a single shard B. setShardVersion is used to set the config server version C. shardCollection enables the sharding functionality for a collection, allowing the collection to be sharded D. None of the mentioned
Explanation:For a sharded collection, mergeChunks combines contiguous chunk ranges on a shard into a single chunk. 6. Which of the following command that validates index on shard key ?