MongoDB Certified DBA Associate Exam C100DBA Exam Questions

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Question #1 (Topic: Demo Questions)

In which of the following scenarios is sharding not the correct option. Select all that apply.

The write operations on the collection are low

The write operations on the collection are very high

The working set in the collection is expected to grow very large in size

The collection is a read intensive collection with less working set

Correct Answer: A, B

Question #2 (Topic: Demo Questions)

The MongoDB explain() method does not support which of the following verbosity mode:

executionStats

queryPlanner

customExecutionStats

allPlansExecution

Correct Answer: A

Question #3 (Topic: Demo Questions)

MongoDB is

None of the above

Object-oriented DBMS

Relational DBMS

Document-oriented DBMS

Correct Answer: D

Question #4 (Topic: Demo Questions)

Which of the following aggregation commands in MongoDB does not support sharded collections?

mapReduce

group

aggregate

All of the above

Correct Answer: B

Question #5 (Topic: Demo Questions)

Which of the following collections stores authentication credentials in MongoDB?

test.users

local.users

system.users

users.users

Correct Answer: C

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