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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.



A.

The write operations on the collection are low
B.

The write operations on the collection are very high
C.

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

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:

A.

executionStats
B.

queryPlanner
C.

customExecutionStats
D.

allPlansExecution
Correct Answer: A
Question #3 (Topic: Demo Questions)

MongoDB is

A.

None of the above
B.

Object-oriented DBMS
C.

Relational DBMS
D.

Document-oriented DBMS
Correct Answer: D
Question #4 (Topic: Demo Questions)

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

A.

mapReduce
B.

group
C.

aggregate
D.

All of the above
Correct Answer: B
Question #5 (Topic: Demo Questions)

Which of the following collections stores authentication credentials in MongoDB?

A.

test.users
B.

local.users
C.

system.users
D.

users.users
Correct Answer: C
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