These interview questions for MongoDB will surely help you with your interview preparation. How to do transactions/locking in MongoDB? Please explain the features of PostgreSQL? Here is the best list of MongoDb Interview Questions and answers for freshers and experienced. Search for: Recent Comments. The update creates the new document with either: Also if we want to update multiple documents we can pass multi: true as another option. Hence, we have seen some latest MongoDB Interview Questions and Answers that can be asked during a MongoDB interview. Compare MongoDB with Couchbase and CouchbaseDB. Log in Create account DEV Community. Write concern can include the following fields: upsert is one of the option that we can pass to the update operation as third parameter. But MongoDB and its drivers supports advanced data types not supported by regular text-based JSON. MongoDB Interview Questions And Answers MongoDB Interview Q And A MongoDB Interview Q & A MongoDB Interview Questions & Answers MongoDB is a free and open-source cross-platform document-oriented database program. The interview process for MongoDB was very straightforward and informative. … Your email address will not be published. Whether you're a candidate or interviewer, these interview questions will help prepare you for your next MongoDB interview ahead of time. If a document is the MongoDB analog of a row in a relational database, then collection is the analog to a table. Q9. Big Table like; Write; Using Key or ScanMongoDB is considered to be best NoSQL database because of :Document-oriented (DO) High performance (HP) … 1 Comments; Bookmark; Become a Certified Professional . 2 thoughts on “Top MongoDB Interview Questions and Answers”. There were many steps, over 8, and a long period of time of a couple of months. and also becoming more complex day by day. Positive. MapReduce is a generic multi-phase data aggregation modality that is used for processing quantities of data. Mongodb's recruiter sent the private message to me via LinkedIn with job description and a blog post from an employee. PostgreSQL Interview Questions . What are the different types of NoSQL databases? The snapshot() method is used to isolate the cursors from intervening with writes. It was about a 1 hour technical interview. Is MongoDB a NoSQL database? I applied for the position and was reached out by the Recruiter shortly after. While creating a schema in MongoDB, the points need to be taken care of are as follows: To get a detailed understanding of MongoDB, enroll in our MongoDB Training now! MongoDB scrap stands on a collection. How can we move an old file into the moveChunk directory? To have a detailed comparison between MongoDB and Cassandra, check out Cassandra Versus MongoDB! MongoDB is nothing but a document database that can store data in JSON documents. 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