Explanation:If your application needs to perform queries on the content of a field that holds text you can perform exact matches on the text. 3. Which of the following operations are atomic on document level ?
A. update
B. remove
C. findAndModify
D. All of the mentioned
Answer:A
Explanation:If your application needs to perform queries on the content of a field that holds text you can perform exact matches on the text. 3. Which of the following operations are atomic on document level ?
A. update B. remove C. findAndModify D. All of the mentioned
Explanation:In MongoDB, write operations, e.g. db.collection.update(), db.collection.findAndModify(), db.collection.remove(), are atomic on the level of a single document. 4. ___________ bulk indexes may be more efficient for some kinds of content and workloads in real time.