Free Preparation Discussions
MENU
Free MongoDB C100DBA Exam Dumps
Here you can find all the free questions related with MongoDB Certified DBA Associate Exam (C100DBA) exam. You can also find on this page links to recently updated premium files with which you can practice for actual MongoDB Certified DBA Associate Exam . These premium versions are provided as C100DBA exam practice tests, both as desktop software and browser based application, you can use whatever suits your style. Feel free to try the MongoDB Certified DBA Associate Exam premium files for free, Good luck with your MongoDB Certified DBA Associate Exam .MultipleChoice
Which of the following is a valid Replica Set configuration if you want:
1-Have 3 copies of everything
2- That RS3 is never primary
2- That RSI and RS2 can be primary?
You had to see the different configurations, RS3 could be hidden or priority 0 (But not a referee because we need
3 replicas), while RSI and RS2 could NOT have priority 0 or be hidden or anything like that
In a 4-member RS RSO , RSI, RS2 and RS3 + Referee, RSO (primary) falls after some write operations that have
replicated RSI and RS2 (but NOT RS3), who can get up as the new primary?
The configuration comes and in it we see that RS2 has a hidden: true (or a priority: 0, (I don't remember)
OptionsMultipleChoice
Which of the documents below will be retrieved by the following query? Assume the documents are stored in a collection called 'sample'. Check all that apply.
db.sample.find( { '$or' : [ { 'a' : { '$in' : [ 3, 10] > }, { 'b' : { '$lt' : 2 > > ] > )
OptionsMultipleChoice
Dada una coleccion, cuales devuelve con la siguiente query db.coleccion.find({nombre:'ruben',apellido:'gomez'},{nombre:l,apellido:l,aficion:l});
OptionsMultipleChoice
What is the output of following two commands in MongoDB: db. posts. insert({n_id':l}) db.posts.insert({'_id':l})
OptionsMultipleChoice
Consider the following document:
> db.c.find()
{ '_id' : 12, b : [ 3, 5, 7, 2, 1, -4, 3, 12 ] }
Which of the following queries on the 'c' collection will return only the first five elements of the array in the 'b'
field? E.g.,
Document you want returned by your query:
{ '_id' : 12, 'b' : [ 3, 5, 7, 2, 1 ] >
OptionsMultipleChoice
What is the equivalent command in MongoDB for the following SQL query?
SELECT * FROM posts WHERE author like "%john%"
OptionsMultipleChoice
Dada una coleccion, cuales devuelve con la siguiente query db.coleccion.find({nombre:"ruben",apellido:"gomez"},{nombre:l,apellido:l,aficion:l});
OptionsMultipleChoice
Which of the documents below will be retrieved by the following query? Assume the documents are stored in a collection called "sample". Check all that apply.
db.sample.find( { "$or" : [ { "a" : { "$in" : [ 3, 10] > }, { "b" : { "$lt" : 2 > > ] > )
OptionsMultipleChoice
Which of the following is a valid Replica Set configuration if you want:
1-Have 3 copies of everything
2- That RS3 is never primary
2- That RSI and RS2 can be primary?
You had to see the different configurations, RS3 could be hidden or priority 0 (But not a referee because we need
3 replicas), while RSI and RS2 could NOT have priority 0 or be hidden or anything like that
In a 4-member RS RSO , RSI, RS2 and RS3 + Referee, RSO (primary) falls after some write operations that have
replicated RSI and RS2 (but NOT RS3), who can get up as the new primary?
The configuration comes and in it we see that RS2 has a hidden: true (or a priority: 0, (I don't remember)
OptionsMultipleChoice
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 ] >
Options
