Posted by: Pdfprep
Post Date: March 7, 2021
Which of the following is true about sharding?
A . Creating a sharded key automatically creates an index on the collection using that key
B . We cannot change a shard key directly/automatically once it is set up
C . A sharded environment does not support sorting functionality since the documents lie on various mongod instances
D . Sharding is enabled at the database level
Answer: B
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