Explanation:Each chunk is identified by its unique ObjectId stored in its _id field. 8. GridFS uses a _________ index on the chunks collection for the files_id and n fields.
A. unique
B. single
C. non unique
D. None of the mentioned
Answer:A
Explanation:Each chunk is identified by its unique ObjectId stored in its _id field. 8. GridFS uses a _________ index on the chunks collection for the files_id and n fields.
A. unique B. single C. non unique D. None of the mentioned
Explanation:The files_id field contains the _id of the chunk’s “parent” document. 9. The ___ field contains the sequence number of the chunk.