C100DBA Free Certification Exam Easy to Download PDF Format 2023
Get 100% Success with Latest MongoDB Certified DBA Associate C100DBA Exam Dumps
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Certification validity is one year and it can be renewed every year. There are two types of exam and these exams are based on the field type. Certified that you have the experience and knowledge of using MongoDB to be able to answer these kinds of questions in no time. Exam for this certification includes different kinds of questions such as programming, multiple choice questions and others. Confirm your knowledge about this exam with the help of online learning at FDT Training. Validity is available for two years, after that it can be renewed. It is always a paid certification and no free version is available to customers out there in the market. There are different types of benefits of MongoDB C100DBA certification exam questions which can be found on several sources easily. Identity, which includes all the data related to a specific document including its primary key and other details. Perfect and authentic way to ensure the security and privacy of the data. Updates are done without any problem, which can be found easily on Google. Code that can be used to ensure the security and privacy of the data. Excellent way to ensure the security and privacy of data.
NEW QUESTION 33
Consider the following posts document:
Which of the following queries will return the documents but with only the first two tags in the tags array?
- A. Both "db.posts.find({author:"Tom"},{tags:{$slice:2}})" and
"db.posts.find({author:"Tom"}).limit($slice: {tags:2})" are valid. $slice works both with projection and limit. - B. db.posts.find({author:"Tom"}.limit({tags:2})
- C. db.posts.find({author:"Tom">,{tags:{$slice:2})
- D. db.posts.find({author:"Tom"}.limit($slice:{tags:2>)
Answer: C
NEW QUESTION 34
If you have created a compound index on (A,B, C) which of the following access pattern will not be able to utilize the index?
- A. A, B, C
- B. A, B
- C. A
- D. B, C
Answer: D
NEW QUESTION 35
Which of the following commands will return all the posts with number of likes greater than 100 and less than
200, both inclusive?
- A. db.posts.find({ likes : { $gt : 100, $lt : 200 > > );
- B. db.posts.find({ likes : { $gte : 100, $lt : 200 } } );
- C. db.posts.find({ likes : { $gt : 100 , $lte : 200 } } );
- D. db.posts.find({ likes : { $gte : 100 , $lte : 200 } } );
Answer: D
NEW QUESTION 36
A collection and a document in MongoDB is equivalent to which of the SQL concepts respectively?
- A. Table and Column
- B. Database and Table
- C. Column and Row
- D. Table and Row
Answer: D
NEW QUESTION 37
What does the totalKeysExamined field returned by the explain method indicate?
- A. Number of index entries scanned
- B. Details the completed execution of the winning plan as a tree of stages
- C. Number of documents scanned
- D. Number of documents that match the query condition
Answer: A
NEW QUESTION 38
Which of the following index would be optimum for the query?
Select all valid. db.test.find( { a : 5, c : 2 })
- A. CH db.test.ensurelndex( { a :1, c:l})
- B. db.test.ensurelndex( { a : 1, c: 1, d: 1, b : 1})
- C. db.test.ensurelndex( { c:l, a: 1})
- D. db.test.ensurelndex( { a: 1, b :1, c:l, d:l})
Answer: A,B
NEW QUESTION 39
Which format/standard is used by MongoDB internally to store documents?
- A. JSON
- B. BSON
- C. B+ Trees
- D. JSON - Extended
Answer: A
NEW QUESTION 40
To add a new user and enable authentication in MongoDB, which of the following steps need be executed?
- A. update users collection and run db.enableAuthenticationQ
- B. update users collection and restart mongodb
- C. update users collection and restart mongodb with -auth option
- D. All of the above
Answer: C
NEW QUESTION 41
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?
- A. 03
- B. 04
- C. 06
- D. 0
Answer: B
NEW QUESTION 42
Consider the following documents:
You perform the following query;
How many documents will be updated by the query?
- A. 0
- B. 1
- C. 2
- D. 3
- E. 4
Answer: B
NEW QUESTION 43
Which of the following needs to be performed prior to initiate backup on a sharded cluster?
- A. sh.stopBalancer( )
- B. db.stopBalancer( )
- C. sh.stopServer( )
- D. db.stopServer( )
Answer: A
NEW QUESTION 44
What is the on-premise solution having functionality equivalent to cloud manager?
- A. Ops Manager
- B. Replica Manager
- C. Journaling
- D. Service Manager
Answer: A
NEW QUESTION 45
Given a collection posts as shown below having a document array comments, which of the following command will create an index on the comment author descending?
- A. db.posts.createIndex({comments.author":-l});
- B. db.posts.createIndex({commerits.$.author":-l});
- C. db.posts.createIndex({comments.$.author": {$desc:l>});
Answer: A
NEW QUESTION 46
In a sharded cluster, from which node does one stop the balancer process before initiating backup?
- A. Any node
- B. config server node
- C. replicaset primary node
- D. mongos node
Answer: D
NEW QUESTION 47
Given a collection posts as shown below having a document array comments, which of the following command will create an index on the comment author descending?
- A. db.posts.createIndex({^comments.$.author":-l});
- B. db.posts.createIndex({^commerits.author";-!});
- C. db. posts.createIndex({^comments.author" :1});
Answer: B
NEW QUESTION 48
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