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C100DBA Exam Dumps - MongoDB Associate Database Administrator(Based on MongoDB 6.0 and 7.0+)

Searching for workable clues to ace the MongoDB C100DBA Exam? You’re on the right place! ExamCert has realistic, trusted and authentic exam prep tools to help you achieve your desired credential. ExamCert’s C100DBA PDF Study Guide, Testing Engine and Exam Dumps follow a reliable exam preparation strategy, providing you the most relevant and updated study material that is crafted in an easy to learn format of questions and answers. ExamCert’s study tools aim at simplifying all complex and confusing concepts of the exam and introduce you to the real exam scenario and practice it with the help of its testing engine and real exam dumps

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Question # 33

To add a new user and enable authentication in MongoDB, which of the following steps need be executed?

A.

update users collection and restart mongodb

B.

All of the above

C.

update users collection and restart mongodb with -auth option

D.

update users collection and run db.enableAuthenticationQ

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Question # 34

Which of the following command is used to get all the indexes on a collection?

A.

db.collection.showIndexes()

B.

db.collection.findlndexes()

C.

db.showIndexes()

D.

db.collection.getlndexesQ

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Question # 35

What is the maximum size of Index Key Limit and Number of Indexes per collection?

A.

1024 bytes and 64 indexes

B.

12 mega bytes and 64 indexes

C.

64 bytes and 1024 indexes

D.

1024 bytes and unlimited indexes

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Question # 36

Which of the following about Capped Collections is correct?

A.

Fixed Size

B.

Only " Fixed Size " and " High-throughput operations that insert and retrieve documents based on insertion order "

C.

High-throughput operations that insert and retrieve documents based on insertion order

D.

If the allocated space for a capped collection exceeds, it stops inserting new documents

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Question # 37

Which of the tags in a replica set configuration specify the operations to be read from the node with the least network latency?

A.

netLatency

B.

secondaryPreferred

C.

nearest

D.

primaryPreferred

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Question # 38

Which of the following aggregate commands in MongoDB uses a pipeline approach with the goals of improving the aggregation performance?

A.

mapReduce

B.

group

C.

aggregate

D.

All of the above

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Question # 39

What operation updates the value of the unitsInStock field to 25 for a document with a " laptop " product, and inserts a new document if it does not exist?

A.

db.inventory.updateOne({ product: " laptop " }, { $set: { unitsInStock: 25 } }, { upsert: true })

B.

db.inventory.insertOne({ product: " laptop " }, { $set: { unitsInStock: 25 } }, { upsert: true })

C.

db.inventory.insertOne({ product: " laptop " }, { $set: { unitsInStock: 25 } }, { upsert: True })

D.

db.inventory.updateOne({ product: " laptop " }, { $set: { unitsInStock: 25 } }, { upsert: True })

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Question # 40

Below is a sample document in a given collection test.

{ a : 5, b : 3, c: 2, d : 1 >

Given a compound index { a: 1, b:l, c:l, d:l}, Which of the below query will not use in-memory sorting? Select

all valid.

A.

db.test.find( { a: 5, b: 3 } ).sort( { c: 1, d : 1 } )

B.

db.test.find( { a: 5, b: 3 } ).sort( { a: 1} )

C.

db.test.find( { a: 5, b: 3 } ).sort( { a: 1, b: 1, c: 1 > )

D.

db.test.find( { a: 5, b: 3 } ).sort( {c: 1 } )

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