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BCG Interview Questions, Process, and Tips
Top BCG Interview Questions and Answers
- Q1. “there is a company in the telecom sector and has a product “X” – this X is a necessity in telecom and the company has been making good profits for the last 4 years – lik ...read moreasked in Consultant interview
- Q2. Your client is Tata Sons and their hierarchy is such that all their other businesses are present below the CEO. In 2012, Mistry was appointed as the chairman of Tata Sons ...read moreasked in Associate Consultant interview
- Q3. why redux is used and advantages?asked in Software Engineer interview
BCG Interview Experiences
196 interviews found
I applied via Referral
Interview Questionnaire
1 Question
- Q1. Our client is a builder who constructs office buildings and residential apartments on contract. There’s a new contract construction of a residential society. Almost 30% of the society has been built and now the builder is thinking of using a different type of brick as the base material compared to what he had been using earlier. He has the option of using one out of the followingbricks: Common Burnt clay bricks, Fly Ash bricks, Concrete bricks. We have to help him decide which one to select
- Ans.
The builder should consider using Fly Ash bricks as the base material for the residential society construction.
Fly Ash bricks are more environmentally friendly compared to common burnt clay bricks and concrete bricks.
Fly Ash bricks have better thermal insulation properties, reducing energy consumption for heating and cooling.
Fly Ash bricks have higher strength and durability compared to common burnt clay bricks.
Fly Ash...
Interview Preparation Tips
Experience: How big is our client in terms of business? Is he present in some other business as well?
Consider the client someone similar to DLF
Has the client consistently been using all these types of bricks in construction? Or is some material new?
The burnt claybrick is the most commonly used one. Next are fly ash and sand lime bricks and concrete bricks are relatively new. This is kind of general trend in the market (i.e. among competition) as well as our clientWhere is the residential society located where the construction needs to be done?It’s in Mumbai
Tips: In general, in case interviews, the interviewer wants to push you hard so that you think harder and bring out more points. It’s only necessary to test the problem solving abilities and check the person’s nerve with problems. Thus, during these times, one should never stop thinking or throwing in new ideas at the interviewer. The ideas may or may not be what the interviewer wants to hear, but this strategy would never reflect anything negative about the interviewee. In fact, works positively in most cases. My interviewers were happy with the discussions I had with them and I was offered the job position after this interview
Skill Tips: First layout the basic structure of how you might want to proceed with the case and then continue asking question along the way –which is more like thinking out loud. This helps to involve the interviewer in the discussion
Skills: Case Analysis
College Name: Indian School Of Business (ISB)
Top BCG Consultant Interview Questions and Answers
Consultant Interview Questions asked at other Companies
Anonymous
I was interviewed in Jan 2025.
(5 Questions)
- Q1. Basics of Python, Flask, ReactJs, RestApi Development
- Q2. Python - Difference between is and ==
- Ans.
The 'is' operator checks if two variables point to the same object in memory, while '==' checks if the values of the two variables are equal.
Use 'is' to check if two variables reference the same object in memory
Use '==' to check if the values of two variables are equal
Example: a = [1, 2, 3]; b = a; a is b will return True, a == b will also return True
- Q3. React - useEffect vs useState
- Ans.
useEffect is used for side effects in functional components, while useState is used for managing state.
useEffect is used to perform side effects in functional components, like data fetching, subscriptions, or manually changing the DOM
useState is used to manage state in functional components, allowing the component to re-render when the state changes
Example: useEffect can be used to fetch data from an API when the compo...
- Q4. Authentication in RestApi
- Ans.
Authentication in RestApi involves verifying the identity of users before granting access to resources.
Use tokens (JWT) for authentication
Implement OAuth for secure authentication
Utilize session management for user authentication
Implement two-factor authentication for added security
- Q5. React - Pure Component and Higher order components
Python Fullstack Developer Interview Questions asked at other Companies
I applied via Approached by Company and was interviewed in Dec 2024. There were 3 interview rounds.
Asked coding questions on Python and SQL
Python - find longest non repeating substring
SQL - join and window function
Develop a production-grade application in Python that analyzes data and provides answers to questions based on the dataset.
(2 Questions)
- Q1. System design and project based questions
- Q2. Scenario-based questions that can help assess how you handle various situations
Interview Preparation Tips
- Coding
- System Design
- Managerial
I applied via Naukri.com and was interviewed in Dec 2024. There were 2 interview rounds.
(2 Questions)
- Q1. How does Django apply migrations to the database?
- Ans.
Django applies migrations to the database using the 'manage.py migrate' command.
Django tracks changes to models and generates migration files accordingly.
The 'manage.py makemigrations' command creates migration files based on model changes.
The 'manage.py migrate' command applies the generated migration files to the database.
Migrations help keep the database schema in sync with the changes in Django models.
- Q2. What is hoisting in javascript?
- Ans.
Hoisting in JavaScript is the behavior where variable and function declarations are moved to the top of their containing scope during the compilation phase.
Variable declarations are hoisted to the top of their scope, but not their assignments.
Function declarations are fully hoisted, meaning they can be called before they are declared.
Hoisting can lead to unexpected behavior if not understood properly.
Create a full stack application in 3 days.
Skills evaluated in this interview
Top BCG Software Engineer Interview Questions and Answers
Software Engineer Interview Questions asked at other Companies
BCG interview questions for popular designations
I applied via Walk-in and was interviewed in Dec 2024. There were 3 interview rounds.
(2 Questions)
- Q1. About Project and expertise
- Q2. Why BCG?
- Ans.
BCG offers a challenging and innovative work environment with opportunities for growth and development.
BCG is known for its cutting-edge technology and innovative projects
Opportunities for professional growth and development
Strong company culture focused on collaboration and teamwork
(1 Question)
- Q1. Polymorphism, OS Deadlock
(1 Question)
- Q1. More about how to resolved code merge issue in Git
Top BCG Software Engineer Interview Questions and Answers
Software Engineer Interview Questions asked at other Companies
Get interview-ready with Top BCG Interview Questions
(2 Questions)
- Q1. Why are you looking for a change?
- Q2. Salary expectations.
(2 Questions)
- Q1. Basics of Python, Selenium, HTML/CSS, Locators, Testing Concepts
- Q2. Solve a case study, based on a real-world problem
(2 Questions)
- Q1. Same as previous.
- Q2. More difficult case study, managerial questions.
(2 Questions)
- Q1. Previous experience, explain the current working method, and how you can improve.
- Q2. My expectations from the company
Interview Preparation Tips
Software QA Engineer Interview Questions asked at other Companies
Jobs at BCG
I applied via Approached by Company and was interviewed in Apr 2024. There were 4 interview rounds.
Contained only mcq questions related to maths and reasoning
(2 Questions)
- Q1. How to detect two loops in a linkedlist
- Ans.
Use Floyd's Cycle Detection Algorithm to detect two loops in a linked list.
Initialize two pointers, slow and fast, both starting at the head of the linked list.
Move slow pointer by one step and fast pointer by two steps in each iteration.
If they meet at some point, there is a loop. Reset one pointer to head and move both by one step until they meet again to find the start of the loop.
- Q2. Mainly all the basics questions on DSA and C++ Language and all the ds like stacks, linkedlist, tree, array, queue,map difference between queue and stack
(3 Questions)
- Q1. Questions on project
- Q2. Code simple que like reverse the string in every possible language that is mentioned on yor resume ,like node js react or python and even c language
- Q3. Basics questions of os like deadlocks
(1 Question)
- Q1. I was note selected for this round
Interview Preparation Tips
- DSA
- React
- SQL
- Linkedlist
- array
Skills evaluated in this interview
Junior Software Engineer Interview Questions asked at other Companies
(2 Questions)
- Q1. Power BI Difference between ALL() and ALLSELECTED()
- Ans.
ALL() ignores all filters in the query context, while ALLSELECTED() ignores only filters on columns in the visual.
ALL() removes all filters from the specified column or table.
ALLSELECTED() removes filters from the specified column or table, but keeps filters on other columns in the visual.
Example: ALL('Table') would remove all filters on the 'Table' in the query context.
Example: ALLSELECTED('Column') would remove filte...
- Q2. Excel Difference between COUNT() and COUNTA()
- Ans.
COUNT() counts only numeric values, while COUNTA() counts all non-empty cells.
COUNT() counts only cells with numerical values.
COUNTA() counts all non-empty cells, including text and errors.
Example: COUNT(A1:A5) will count only cells with numbers, while COUNTA(A1:A5) will count all non-empty cells.
(2 Questions)
- Q1. Resume based questions like explain the projects that you have done.
- Q2. Sample dataset questions
Skills evaluated in this interview
Data Analyst Interview Questions asked at other Companies
I applied via Naukri.com and was interviewed in Jun 2024. There were 3 interview rounds.
(1 Question)
- Q1. Technical questions on GenAI
(1 Question)
- Q1. Technical high level questions on Previous projects
(1 Question)
- Q1. Team handling and other case based scenario questions
Software Engineering Specialist Interview Questions asked at other Companies
I applied via Naukri.com and was interviewed in Aug 2024. There was 1 interview round.
(2 Questions)
- Q1. How to write custom django admin commands
- Ans.
Custom Django admin commands can be written to perform specific tasks in the Django admin interface.
Create a management/commands directory inside your Django app directory
Create a Python file for your custom command inside the management/commands directory
Define a class that extends BaseCommand and implement the handle method to execute the command logic
Register the custom command in the Django admin interface by addin
- Q2. Python decorator
Skills evaluated in this interview
Top BCG Software Engineer Interview Questions and Answers
Software Engineer Interview Questions asked at other Companies
I applied via Referral and was interviewed in Jul 2024. There were 3 interview rounds.
An assignment based on the given scenario.
(1 Question)
- Q1. Personal details and reason for change in job
(1 Question)
- Q1. Scenario based questions, aptitude and attitude , connecting new person or a popular personality
Executive Assistant Administrator Interview Questions asked at other Companies
What people are saying about BCG
BCG Interview FAQs
Some of the top questions asked at the BCG interview -
The duration of BCG interview process can vary, but typically it takes about less than 2 weeks to complete.
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BCG Interviews By Designations
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BCG Interview Process
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