18 questions · from 1 interviews

Bcg interview questions

Every question candidates reported from their Bcg interviews, most frequently asked first. Each links to the write-up it came from, so you can see the round and how it went.

Bcg coding and DSA questions

  1. 01

    Missing Number from 1 to n

    Given a short missing number from 1..n numbers, find the missing number.

    Easy · From BCG -X Junior Engineer(SWE/Data) Interview Experience

  2. 02

    Aggregate Data from List of Dictionaries

    Given a list of dictionaries, find the aggregate of a particular user ID.

    Medium · From BCG -X Junior Engineer(SWE/Data) Interview Experience

  3. 03

    Difference between Array and Hashmap

    Explain the difference between an Array and a Hashmap.

    Easy · From BCG -X Junior Engineer(SWE/Data) Interview Experience

  4. 04

    Advanced SQL Queries

    Solve 8 SQL queries, progressively increasing in difficulty.

    Hard · From BCG -X Junior Engineer(SWE/Data) Interview Experience

Bcg system design questions

  1. 01

    APIs: GET, PUT, POST, PATCH

    Explain what APIs are and provide code examples for GET, PUT, POST, and PATCH methods.

    Medium · From BCG -X Junior Engineer(SWE/Data) Interview Experience

  2. 02

    What are ORMs?

    Explain what Object-Relational Mappers (ORMs) are.

    Easy · From BCG -X Junior Engineer(SWE/Data) Interview Experience

  3. 03

    Database Indexing Concepts

    Discuss concepts related to database indexing.

    Medium · From BCG -X Junior Engineer(SWE/Data) Interview Experience

Bcg behavioural and HR questions

  1. 01

    Discussion on Past Projects

    Discuss past projects listed on the resume.

    From BCG -X Junior Engineer(SWE/Data) Interview Experience

  2. 02

    Scare Moment in Development

    Describe any scare moments encountered during development.

    From BCG -X Junior Engineer(SWE/Data) Interview Experience

  3. 03

    Discuss Weaknesses

    Discuss personal weaknesses.

    From BCG -X Junior Engineer(SWE/Data) Interview Experience

  4. 04

    Team Collaboration Scenario

    Describe a team collaboration situation scenario.

    From BCG -X Junior Engineer(SWE/Data) Interview Experience

  5. 05

    Handling Critical Work on Friday

    Describe how to handle a critical situation where work is assigned on a Friday.

    From BCG -X Junior Engineer(SWE/Data) Interview Experience

Bcg other questions

  1. 01

    Write SQL Query

    Asked to write an SQL Query with the correct syntax.

    Easy · From BCG -X Junior Engineer(SWE/Data) Interview Experience

  2. 02

    JavaScript `preventDefault` Example

    Code an example for JavaScript events using preventDefault.

    Medium · From BCG -X Junior Engineer(SWE/Data) Interview Experience

  3. 03

    What is Local Storage?

    Explain what local storage is.

    Easy · From BCG -X Junior Engineer(SWE/Data) Interview Experience

  4. 04

    Decorator and Generator Functions

    Explain decorator functions and generator functions.

    Medium · From BCG -X Junior Engineer(SWE/Data) Interview Experience

  5. 05

    Lambda Function Output Prediction

    Given a tricky snippet of a Lambda Function, predict its output.

    Medium · From BCG -X Junior Engineer(SWE/Data) Interview Experience

  6. 06

    React `useEffect` and `useState`

    Explain why and when useEffect and useState hooks are used in React.

    Medium · From BCG -X Junior Engineer(SWE/Data) Interview Experience

Bcg interview questions FAQ

What questions are asked in Bcg interviews?

Candidates reported 18 distinct questions across 1 Bcg interviews. 4 coding and DSA questions, 3 system design questions, 5 behavioural and HR questions, 6 other questions.

How difficult are Bcg interview questions?

Of the questions candidates rated, 38% were easy, 54% medium and 8% hard.