D. All of the above. This Quiz consists of Collection's 150 Multiple choice questions in 6 sets - Java Collection quiz - MCQ Contents of page > Collection Java - MCQ set 1 (25 questions, 55 marks) Collection Java - MCQ set 2 (25 questions, 55 marks) Collection Java - MCQ set 3 (25 questions, 55 marks) Collection Java - MCQ set 4 (25 questions, 55 marks) D. All of the above. C. mongod The Collections. Document That stands in a few MongoDB collection. Data can be easily held across multiple servers A document can easily be inserted using a single command in the collection, which means MongoDB creates a collection … It is the equivalent of an RDBMS table. You can also specify a single blood group type or multiple blood groups by a comma separated to get the multiple blood group type of users. MongoDB MCQ Set 1 1. Sign up and receive the latest tips via email. A collection exists within a single database. This MongoDB MCQ Test contains 25 multiple Choice Questions. C. MongoDB is not scalable Database . These Multiple Choice Questions (MCQ) should be practiced to improve the MongoDB skills required for various interviews (campus interview, walk-in interview, company interview), placements, entrance exams and other competitive examinations. Key-Value Stores. Databases, collections, documents are important parts of the MongoDB without them you are not able to store data on the MongoDB server. Which database should use? Collection is a group of MongoDB documents. D. None of the above. B. A MongoDB collection is created when a user inserts the first document. Which of the following represent column in mongoDB? Collections do not enforce a schema. If you are not sure about the answer then you can check the answer using Show Answer button. Collection: A collection behaves like a table in RDBMS. Explanation: Dynamic schema is/are feature of mongoDB. MongoDB encryption encrypts data stored on any storage or processing by operating system may not be able to access protected data. This section provides a useful collection of sample Interview Questions and Multiple Choice Questions (MCQs) and their answers with appropriate explanations. D. A 10 bytes binary value. A. MongoDB is a NoSQL Database Ask Question Asked 5 years, 8 months ago. MongoDB is developed by MongoDB Inc. and licensed under the Server-Side Public License (SSPL). MongoDB MCQ Questions And Answers. What is ElasticSearch? 6 Reasons to choose this Framework, What is Node.JS | Pros and Cons of Node JS. This is relevant to the RDBMS table. 1. B. Practice MongoDB MCQs Online Quiz Mock Test For Objective Interview. When we created our database, we created a collection called artists. Database A. db.COLLECTION_NAME.aggregate ( {key:1}) D. All of the above. To create a collection, we should insert Document into it, and it must have fields name and field value. C. mongo Ramon has requested that we will run on an honor system, so please refrain from trolling. In MongoDB, a database contains the collections of documents. Database: The MongoDB server stores many databases with their collection of files on the file system. This MongoDB MCQ Test contains 25 multiple Choice Questions. Explanation: MongoDB is a NoSQL Database is correct with respect to mongoDB. Which of the following true about mongoDB? 9. Collections are therefore, in many ways, similar to tables from the relational model. This query is similar to SQL syntax given below: A 12 byte hexadecimal value The selection criteria to determine which documents in the collection to process. You have to select the right answer to every question. Initial release February 11, 2009 Public … A 16 byte octal value scan every document in a collection, to select those documents that match the query statement. If the collection does not exist, then new will be created automatically when we try to insert the record into it. Just to recap, in the previous post on Create, I inserted the following BSONDocument into the sample_training.gradescollection from the MongoDB sample dataset. Explanation: Collection is a group of MongoDB documents. Point out the correct statement : a) Shard key range tags are distinct from replica set member tags […] 1. We have listed here the best MongoDB MCQ Questions for your basic knowledge of MongoDB. And the collection exists within a single database. List of MongoDB Collection. Documents within a collection can have different fields. B. MongoDB used XML over JSON for data exchange MongoDB Compass has full CRUD (Create, Read, Update, Delete) capabilities. B. mongod We can define it as an actual space for the collection of data. MongoDB MCQ Questions; We have listed below the best MongoDB MCQ Questions, MCQ on MongoDB, MongoDB mcq with answers for your basic knowledge of MongoDB. const cursor = db.collection('users').find({ blood: { $in: ['A+', 'B+'] } }); The above code fetches all the users whose blood group is ‘A+’ & ‘B+’. Below are the MongoDB List Collections … C. collection Below are few MongoDB MCQ test that checks your basic knowledge of MongoDB.This MongoDB Test contains around 20 questions of multiple choice with 4 options.You have to select the right answer to a question. If you omit the cond field, db.collection.group() processes all the documents in the collection for the group operation. These Multiple Choice Questions (MCQ) should be practiced to improve the MongoDB skills required for various interviews (campus interview, walk-in interview, company interview), placements, entrance exams and other competitive examinations. A. dynamic schema A function that runs each item in the result set before db.collection.group() returns the final value. B. Relational Data MongoDB can be used as a ____________, taking advantage of load balancing and data replication features over multiple machines for storing files. In addition to this, the competitors can score the marks in the competitive examinations by practicing the MongoDB MCQ Quiz. Classified as a NoSQL database program, MongoDB uses JSON-like documents with optional schemas. The table has three indexes as follows: IDX1 – PAY_ID IDX2 – BANK_ACCT, PAY_AMT IDX3 – INIT_NAME, PAY_DT Which of the following queries will result in INDEX RANGE SCAN a) WHERE INIT_NAME … DBMS MCQ … Every data element in the database is stored as a key value pair consisting of an attribute name (or "key") and a value. MongoDB Syntax: db.collection_name.insert({key:value, key:value…}) 1) Getting a list of collection: For getting a list of a MongoDB database’s collections list_collection_names() method is used.This method returns a list of collections. Consider a Payment table with attributes PAY_ID (Primary Key), PAY_DT, PAY_AMT, BANK_ACCT, INIT_NAME, and PAY_MODE. It is the equivalent of an RDBMS table. A. Relational A. 7. Explanation: Relational Data is not a feature for NoSQL databases. Which of the following is/are feature of mongoDB? Therefore, the list is kept in a lump of dough of all substances, it is either in size. 2. B. NoSQL Viewed 1k times 0. so I'm working with a database that has multiple collections and some of the data overlaps in the collection . You can use Next Quiz button to check new set of questions in the quiz. Explanation: Dynamic schema means that documents in the same collection do not need to have the same set of fields or structure, and common fields in a collection's documents may hold different types of data. Now you should have the feeling that when and where to integrate MongoDB into your existing system is the best. A. MongoDB is a cross-platform Before creating a new collection, you will need to first make sure that you have connected to your instances successfully. The architecture of a replica set affects the set’s _____ and capability. Explanation: The system generated _id field is 12 byte hexadecimal value. C. A 12 byte decimal value This€MongoDB€Test €contains around 20 questions of multiple choice with 4 options. MongoDB is a cross-platform, document-oriented database that works on the concept of collections and documents. D. field, Explanation: field represent column in mongoDB, A. We have the right to revoke marks. A collection typically contains documents that have a similar topic (like Users, Products, Posts, etc). In MongoDB, a collection is a group of documents. D. None of the above. MongoDB stores data records as documents (specifically BSON documents) which are gathered together in collections. A. These Multiple Choice Questions (MCQ) should be practiced to improve the MongoDB skills required for various interviews (campus interview, walk-in interview, company interview), placements, entrance exams and other competitive examinations. MongoDB doesn’t have a “create database” command. A Database contains a collection, and a collection contains documents and the documents contain data, they are related to each other. In this MongoDB tutorial, we will learn to update single and multiple documents in a collection.MongoDB offers a wide array of methods to update a document in the collection if you are willing to update single or multiple documents at once, it’s pretty comfortable with the help of MongoDB. B. MongoDB is a document oriented database This set of MongoDB Multiple Choice Questions & Answers focuses on “Replica Set Deployment Architectures”. D. Embedded Documents. Take MongoDB Quiz To test your Knowledge . C. Scalability MongoDB is in high demand nowadays for its simplicity in tums of a cross-platform document-oriented database program. D. mongo, Explanation: Primary Key (Default key _id provided by MongoDB itself). A. Vertically scalable A collection does not follow any specific structure. 6. C. Field A. document Document In this tutorial, we will walk you through the concepts and key facts of databases, documents, and collection of MongoDB. SignIn/SignUp to submit and upvote courses, tutorials, and interview questions. For example, you could have collection names such as users, pageviews, posts, comments, etc. 2. Default key _id In other words, a user does not have to create a collection before inserting a document in it. The db.collection.group() method is used to Groups documents in a collection by the specified keys and performs simple aggregation functions such as computing counts and sums. Except for PAY_ID, no columns are unique. Courseya provides latest Courses and interview materials for various technologies & Frameworks. C. MongoDB provides high performance There are a lot of new similar storage technologies that will definitely make you confuse when you choose. Comparing MongoDB vs PostgreSQL offers a detailed analysis of MongoDB, the leading NoSQL database, and PostgreSQL, one of the most popular SQL databases. Documents in the same collection do not need to have the same set of fields or structure, and common fields in a collection's documents may hold different types of data is known as ? A collection exists within a single database. Disclosure: This page may contain affiliate links, meaning when you click the links and make a purchase, we receive a commission. You can see the correct answer by clicking view answer link. MongoDB Quiz contain set of 10 MCQ questions for MongoDB MCQ which will help you to clear beginner level quiz. D. Faster data access than SQL databases. C. Both A and B can be used This section focuses on "Aggregation" in MongoDB. A. Embedded Documents Using these capabilities, you can easily create new collections in databases on your MongoDB cluster. 1. C. c a) primary b) secondary c) shard d) all of the mentioned 2. MongoDB Scenarios – Best Scenarios For Using MongoDB from Coding compiler. B. 4. Which of the following is not a feature for NoSQL databases? B. Centralised database Is it possible to group multiple collections in mongodb. Which of the following statement is correct with respect to mongoDB? You can see the correct answer by clicking view answer link. It contains a group of documents. They are typically used to group documents of a similar topic. The simplest type of NoSQL database is a key-value store. The basic syntax of Aggregation is? Pros, Cons and Features List, What is Symfony? Documents within a collection will be from different fields. This section focuses on "Basics" in MongoDB. Instead, it is going to create one for you when you try to save something into it. Collection. finalize: function: Optional. 1. A developer want to develop a database for LFC system where the data stored is mostly in similar manner. Cosc 416: MongoDB Assignment First off, you need a database to connect to. a) scalability b) capacity c) performance d) all of the mentioned View Answer MongoDB MCQ Quiz Take MongoDB Quiz To test your Knowledge€ Below are€few€MongoDB€MCQ€test that checks your basic knowledge of MongoDB. Explanation: MongoDB is a cross-platform, document oriented database that provides, high performance, high availability, and easy scalability. 14) By default, which index is created by MongoDB for every collection? 3. This section focuses on "Basics" in MongoDB. Collections are like containers for related documents. You will have to read all the given answers and click over the correct answer. MongoDB supports tagging a range of _______ key values to associate that range with a shard or group of shards. This function can either modify the result document or replace the result … In MongoDB, documents are stored as JSON documents. A database stores one or more collections of documents. Collection is a group of MongoDB ___________? Let’s start discussing on MongoDB scenarios here now. Collection The collection is the group of Mongo DB documents. In this article, we'll have a look at integrating MongoDB, a very popular NoSQL open source database with a standalone Java client. 8. You have to€select the right answer to a question. Developed by MongoDB Inc. Typically, all documents in a collection are of similar or related purpose. Q44) When everything is in no way sufficient data to get extended to multi-cut?