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Celebal Technologies
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I applied via Campus Placement and was interviewed in Sep 2023. There were 3 interview rounds.
It was very easy and out of 1000 students 300 students got shortlisted.
OOPs stands for Object-Oriented Programming. The 4 pillars are Inheritance, Encapsulation, Abstraction, and Polymorphism.
Inheritance: Allows a class to inherit properties and behavior from another class. Example: Parent class 'Animal' and child class 'Dog' inheriting from 'Animal'.
Encapsulation: Bundling data and methods that operate on the data into a single unit. Example: Using private variables and public methods in...
DBMS stands for Database Management System, which is a software system that manages databases. SQL is a language used to interact with databases.
DBMS is a software system that allows users to define, create, maintain, and control access to databases.
SQL (Structured Query Language) is a language used to communicate with a database. It is used to retrieve, update, and manage data in a database.
Examples of popular DBMS in...
MongoDB is a NoSQL database program that uses a document-oriented data model.
NoSQL database program
Document-oriented data model
Uses JSON-like documents for data storage
Supports dynamic schemas for flexible data structures
React hooks are functions that let you use state and other React features without writing a class.
Hooks are functions that let you use state and other React features in functional components
useState() - allows functional components to have local state
useEffect() - allows functional components to perform side effects
useContext() - allows functional components to access context
useReducer() - an alternative to useState() ...
I applied via Campus Placement and was interviewed in Oct 2022. There were 4 interview rounds.
Consisting of around 10 SQL querying questions and 2 Python programming questions and 30 SQL + PowerBI related MCQs
I applied via Company Website and was interviewed in Sep 2022. There were 4 interview rounds.
It contain MCQ question which contain F section but all are easy. It contain some coding problem of easy, medium and hard level of Data structure and problems related to your domain.
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I applied via Referral and was interviewed in Jul 2020. There were 3 interview rounds.
I applied via Recruitment Consultant and was interviewed in Apr 2020. There were 4 interview rounds.
I applied via Walk-in and was interviewed before Jun 2020. There was 1 interview round.
I applied via Company Website and was interviewed before Jun 2020. There were 4 interview rounds.
MongoDB database algorithms are used for efficient data storage, retrieval, and processing.
MongoDB uses various algorithms for indexing, sharding, and aggregation.
Indexing algorithms include B-tree, hash, and text search indexes.
Sharding algorithms include range-based, hash-based, and zone-based sharding.
Aggregation algorithms include map-reduce and aggregation pipeline.
MongoDB also uses algorithms for query optimizati
I applied via Recruitment Consultant and was interviewed in Aug 2020. There were 4 interview rounds.
I applied via Naukri.com and was interviewed before Aug 2021. There were 2 interview rounds.
Structured Query Language (SQL) is a programming language used to manage and manipulate relational databases.
SQL is used to create, modify, and delete databases, tables, and data
It is used to retrieve data from databases using queries
SQL is used to perform operations on data such as sorting, filtering, and grouping
Examples of SQL-based database management systems include MySQL, Oracle, and Microsoft SQL Server
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