Explanation:The field you choose as your hashed shard key should have a good cardinality, or large number of different values. 5. Point out the correct statement :
A. Hashed keys do not work well with fields that increase monotonically like ObjectId values or timestamps
B. If you shard an empty collection using a hashed shard key, MongoDB will automatically create and migrate chunks so that each shard has two chunks
C. Hashed keys work well with ObjectId values only
D. All of the mentioned
Answer:A
Explanation:The field you choose as your hashed shard key should have a good cardinality, or large number of different values. 5. Point out the correct statement :
A. Hashed keys do not work well with fields that increase monotonically like ObjectId values or timestamps B. If you shard an empty collection using a hashed shard key, MongoDB will automatically create and migrate chunks so that each shard has two chunks C. Hashed keys work well with ObjectId values only D. All of the mentioned
Explanation:Hashed keys work well with fields that increase monotonically like ObjectId values or timestamps. 6. You can control how many chunks MongoDB will create with the ___________ parameter.