Free C100DBA Questions for MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) C100DBA Exam as PDF & Practice Test Engine
Which of the following does MongoDB use to provide High Availability and fault tolerance?
Correct Answer: B
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Which of the following are common uses of the mongo shell? Check all that apply
Correct Answer: A,C
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Mongodb does provide high availability via which option?
Correct Answer: B
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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.
{
" manufacturer " : 1,
" name " : 1,
" date " : -1
}
Which of the following is able to use the index for the query? Check all that apply.
Correct Answer: A,B,C
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In a replica set, which member is responsible for maintaining copies of the primary ' s data?
Correct Answer: A
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Which of the following does MongoDB use to provide High Scalability?
Correct Answer: D
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Consider a contacts collection that contains these documents:
{ " _id " : 1, " name " : " Poppy " , " birthday " : " 03-09-1984 " }
{ " _id " : 2, " name " : " Ashley " , " birthday " : " 08-12-1990 " }
{ " _id " : 3, " name " : " Cleo " , " birthday " : " 11-02-1976 " }
What query returns the document where the field name is " Poppy " ?
{ " _id " : 1, " name " : " Poppy " , " birthday " : " 03-09-1984 " }
{ " _id " : 2, " name " : " Ashley " , " birthday " : " 08-12-1990 " }
{ " _id " : 3, " name " : " Cleo " , " birthday " : " 11-02-1976 " }
What query returns the document where the field name is " Poppy " ?
Correct Answer: D
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The________operator can be used to identify an element in the array to be updated without explicitly specifying the position of the element.
Correct Answer: C
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The Production MongoDB Cluster contains Personally Identifiable Information, such as Name, Demographics, Date of Birth, and Government Identification Number. Due to strict compliance requirements, a database administrator is tasked to ensure a client ' s side encryption.
What feature should the administrator use to meet the requirement?
What feature should the administrator use to meet the requirement?
Correct Answer: D
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A database administrator notices that operations on the qa database are not completing, and have been in progress for longer than expected.
What command can the administrator run to see information on in-progress operations on the qa database?
What command can the administrator run to see information on in-progress operations on the qa database?
Correct Answer: B
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Which of the following is a valid insert statement in mongodb? Select all valid.
Correct Answer: C,D
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Consider the following posts document:
Which of the following queries will return the documents but with only the first two tags in the tags array?
Which of the following queries will return the documents but with only the first two tags in the tags array?
Correct Answer: D
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In a collection that contains 100 post documents, what does the following command do? db. posts. find().skip (5).limit(5)
Correct Answer: D
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