Explanation:Use limit() to maximize performance and prevent MongoDB from returning more results than required for processing. 3. Which of the following collection is capped ?
A. system.index
B. system.replica
C. system.profile
D. All of the mentioned
Answer:A
Explanation:Use limit() to maximize performance and prevent MongoDB from returning more results than required for processing. 3. Which of the following collection is capped ?
A. system.index B. system.replica C. system.profile D. All of the mentioned
Explanation:The database profiler writes data in the system.profile collection, which is a capped collection. 4. The ___________ provides information for various lock types and lock modes held during the operation.