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What is the registration procedure of MongoDB C100DBA Exam

Once the exam date has been announced by MongoDB, registration can be done. Registering for this exam is a little different from other certification exams. The steps for taking this exam must be followed. Registration for this exam will open on the date of the announcement. Registering for this certification exam is a free-of-cost process. This is a computer-based exam and is usually two hours long. MongoDB C100DBA Dumps is the best source for passing this certification exam with a high score. The exam takes place at Pearson Vue testing centers. This entry-level certification is only available in the English language. MongoDB website offers information about its training, certification, and more.

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MongoDB is a popular NoSQL database that is widely used by businesses and organizations of all sizes. As the demand for MongoDB expertise continues to grow, the need for skilled MongoDB Certified DBAs has also increased. To meet this demand, MongoDB offers a certification program that helps individuals demonstrate their proficiency in administering MongoDB databases. The MongoDB Certified DBA Associate Exam, also known as the C100DBA, is the entry-level certification exam for aspiring MongoDB DBAs.

MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) Sample Questions (Q77-Q82):

NEW QUESTION # 77
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({comments.$.author": {$desc:l>});
C. db.posts.createIndex({commerits.$.author":-l});

Answer: A

NEW QUESTION # 78
Which operations add new documents to a collection?

A. delete
B. update
C. insert
D. Create

Answer: C,D

NEW QUESTION # 79
Below is a sample document of " orders " collection

Answer:

Explanation:
$project

NEW QUESTION # 80
What does the following aggregate query perform?

A. Fetches the posts with likes between 100 and 200, sets the _id of the first document as null and then increments it 1 every time
B. Fetches the posts with likes between 100 and 200 and sets their _id as null
C. Calculates the number of posts with likes between 100 and 200
D. Groups the posts by number of likes (101, 102, 103.) by adding 1 every time

Answer: C

NEW QUESTION # 81
Write the command(s) are correct to enable sharding on a database " testdb " and shard a collection " testCollection " with _id as shard key.

Answer:

Explanation:
sh.enableSharding("testdb") & sh.shardCollection("testdb.testCollection", {_id : 1 }, true )

NEW QUESTION # 82
......

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