MongoDB C100DBA MongoDB Certified DBA Associate Exam Practice Test

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Total 132 questions
Question 1

What tool do you use if you want to extract a CSV from mongo?

See Below Explanation:




Answer : A


Question 2

You have the following index on the toys collection:

{

"manufacturer" : 1,

"name" : 1,

"date" : -1

}

Which of the following is able to use the index for the query? Check all that apply.



Answer : A, B, C


Question 3

Given a replica set with five data-bearing members, suppose the primary goes down with operations in its oplog that have been copied from the primary to only one secondary. Assuming no other problems occur, which of the following describes what is most likely to happen?



Answer : B


Question 4

What read preference should your application use if you want to read from the primary under normal circumstances but allow reads from secondaries when a primary is unavailable?



Answer : E


Question 5

Consider that the posts collection contains an array called ratings which contains ratings given to the post by various users in the following format:

Which of the following query will return all the documents where the ratings array contains elements that in some combination satisfy the query conditions?



Answer : D


Question 6

Which of the following does MongoDB use to provide High Availability and fault tolerance?



Answer : C


Question 7

Which of the following node is used during election in a replication cluster?



Answer : B


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Total 132 questions