Explanation:In version 3.0.0, MongoDB uses Power of 2 Sized Allocations as the default allocation strategy for MMAPv1 in order to account for document growth, minimizing the likelihood of data fragmentation. 6. To interact with embedded documents, use ___________ notation to “reach into” embedded documents.
A. period
B. dot
C. comma
D. colon
Answer:A
Explanation:In version 3.0.0, MongoDB uses Power of 2 Sized Allocations as the default allocation strategy for MMAPv1 in order to account for document growth, minimizing the likelihood of data fragmentation. 6. To interact with embedded documents, use ___________ notation to “reach into” embedded documents.
A. period B. dot C. comma D. colon
Explanation:References provides more flexibility than embedding. 7. MongoDB using the mmapv1 storage engine has limits on the number of __________ .