Explanation: The namespace file defaults to 16 MB. 8. To get the current number of namespaces in the mongo shell, use :
A. db.system.namespaces.countc()
B. db.system.namespaces.count(*)
C. db.system.namespaces.count()
D. All of the mentioned
Answer:A
Explanation: The namespace file defaults to 16 MB. 8. To get the current number of namespaces in the mongo shell, use :
A. db.system.namespaces.countc() B. db.system.namespaces.count(*) C. db.system.namespaces.count() D. All of the mentioned
Explanation:The limit on the number of namespaces depend on the .ns size. 9. The __________ feature of collections expires documents after a period of time.