MongoDB C100DBA Exam Questions

Consider the following document:

> db.c.find()

{ "_id" : 12, b : [ 3, 5, 7, 2, 1, -4, 3, 12 ] }

Which of the following queries on the "c" collection will return only the first five elements of the array in the "b"

field? E.g.,

Document you want returned by your query:

{ "_id" : 12, "b" : [ 3, 5, 7, 2, 1 ] >

Which of the following is true of the mechanics of replication in MongoDB? Check all that apply.

Consider the following document:

> db.c.find()

{ "_id" : 12, b : [ 3, 5, 7, 2, 1, -4, 3, 12 ] }

Which of the following queries on the "c" collection will return only the first five elements of the array in the "b"

field? E.g.,

Document you want returned by your query:

{ "_id" : 12, "b" : [ 3, 5, 7, 2, 1 ] >

You perform the following query on the sayings collection, which has the index

{ quote : "text" }:

Assuming the documents below are in the collection, which ones will the following query return? Check all that

apply.

db.sayings.find( { $text : { $search : "fact find" } } )

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