[Sep 29, 2024] New 2024 MongoDB C100DBA Exam Dumps with PDF from BraindumpsPass (Updated 130 Questions) [Q13-Q30]

QUESTION 13
Consider the following documents:

You perform the following query;

How many documents will be updated by the query?

QUESTION 14
Which of the following needs to be performed prior to initiate backup on a sharded cluster?

QUESTION 15
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 ] >

QUESTION 16
Which of the following aggregate commands in MongoDB uses a pipeline approach with the goals of improving the aggregation performance?

QUESTION 17
What does the totalKeysExamined field returned by the explain method indicate?

QUESTION 18
What is the maximum size of Index Key Limit and Number of Indexes per collection?

QUESTION 19
Which of the following commands finds all the documents in the posts collection with post timestamp field as null?

QUESTION 20
What is the output of following two commands in MongoDB: db. posts. insert({n_id”:l}) db.posts.insert({“_id”:l})

QUESTION 21
You are comparing values of different BSON types in mongodb. You want to compare from lowest to highest. Which comparison order is used?

QUESTION 22
Which mongodb tools allow us to work with our data in a human readable format?

QUESTION 23
Which option can be used with update command so that a new document gets created if no matching document is found based on the query condition?

QUESTION 24
Which of the following is true of the mechanics of replication in MongoDB? Check all that apply.

QUESTION 25
Which of the following commands will return all the posts with number of likes greater than 100 and less than
200, both inclusive?

QUESTION 26
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 ] }

QUESTION 27
The difference between $push and $addToSet is:

QUESTION 28
Which of the following are common uses of the mongo shell? Check all that apply

QUESTION 29
You have a replicated cluster with 1 primary, 3 secondary, 1 arbiter. One of the secondary is hidden. What is the replication factor of this replicated cluster?

QUESTION 30
Which of the following commands can cause the database to be locked?