Mongodb help2pass passed Exam Today C100dba by Khalil q106 vce pdf

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Exam Name:	MongoDB Associate Database Administrator(Based on MongoDB 6.0 and 7.0+)
Exam Code:	C100DBA Dumps
Vendor:	MongoDB	Certification:	MongoDB Certified DBA Associate
Questions:	172 Q&A's	Shared By:	khalil

Question 44

What is the first task that a secondary would perform on being prompted by another secondary for an election?

Options:

Start the election process for primary

Vote for the first secondary so that it would become the next primary

Vote for itself and then call for election

Connect to primary to confirm its availability

Discussion

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Question 45

Consider an orders collection that contains these documents:

{ _id: 1, product: " X-pad " , quantity: 950 }

{ _id: 2, product: " X-pad-pro " , quantity: 1000 }

{ _id: 3, product: " X-phone " , quantity: 850 }

{ _id: 4, product: " X-phone-pro " , quantity: 1350 }

Commands A and B are run at the same time. Assume that no other operations are running.

Options:

)db.orders.findAndModify({query: { " product " : " X-phone " },update: { $set: { " quantity " : 1250 } }})

)db.orders.updateMany({}, { $set: { " quantity " : 0 } })What is the possible findAndModify output and database state after these operations complete? Select TWO.

findAndModify output shows quantity 1250; final X-phone quantity is 1250 while all others are 0.

findAndModify output shows quantity 850; final quantities for all four documents are 0.

findAndModify output shows quantity 0; final quantities for all four documents are 0.

findAndModify output shows quantity 0; final X-phone quantity is 1250 while all others are 0.

Discussion

Question 46

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

Questions 46

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

Options:

db.inventory.find( { ratings: { $elemMatch: { $gte: 3, $lte: 6 } } } )

db.inventory.find( { ratings: { $elemMatch: { $gt: 3, $lt: 6 }

db.inventory.find( { ratings: { ratings.$: { $gt: 5, $lt: 9 } } } )

db.inventory.find( { ratings: { ratings: { $gt: 5, $lt: 9 } } } )

Discussion

Question 47

Write the command(s) are correct to enable sharding on a database " testdb " and shard a collection " testCollection " with _id as shard key.

Questions 47