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Accenture Lead Data Engineer Interview Questions and Answers

Updated 20 Feb 2024

Accenture Lead Data Engineer Interview Experiences

1 interview found

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(3 Questions)

  • Q1. Given a DataFrame df with columns 'A', 'B','C' how would you group the data by the values in column 'A' and calculate the mean of column 'B' for each group, while also summing the values in column 'C' ?
  • Ans. 

    Group data by column 'A', calculate mean of column 'B' and sum values in column 'C' for each group.

    • Use groupby() function in pandas to group data by column 'A'

    • Apply mean() function on column 'B' and sum() function on column 'C' for each group

    • Example: df.groupby('A').agg({'B':'mean', 'C':'sum'})

  • Answered by AI
  • Q2. Explain the difference deepcopy() and copy() methods in Python's copy module. Provide a scenario where you would use deepcopy() over copy().
  • Ans. 

    deepcopy() creates a new object with completely independent copies of nested objects, while copy() creates a shallow copy.

    • deepcopy() creates a new object and recursively copies all nested objects, while copy() creates a shallow copy of the top-level object only.

    • Use deepcopy() when you need to create a deep copy of an object with nested structures, to avoid any references to the original object.

    • Use copy() when you only ...

  • Answered by AI
  • Q3. Discuss the concept of Python decorators and provide an example of how you would use decorators to measure the execution time of a function.
  • Ans. 

    Python decorators are functions that modify the behavior of other functions. They are commonly used for adding functionality to existing functions without modifying their code.

    • Decorators are defined using the @ symbol followed by the decorator function name.

    • They can be used to measure the execution time of a function by wrapping the function with a timer decorator.

    • Example: def timer(func): def wrapper(*args, **kwargs...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - I would like you to approach the interview with enthusiasm, demonstrating passion and eagerness in your interview aligns with their mission of driving innovation and positive change.

Skills evaluated in this interview

Interview questions from similar companies

Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
-

I applied via Approached by Company and was interviewed in Nov 2024. There was 1 interview round.

Round 1 - Technical 

(3 Questions)

  • Q1. SQL Question on window functions to find the highest sale amount per day of the stores
  • Q2. Build an ETL Pipeline to read json files which are dropping at irregular times into storage. So how do you transform and match the schema etc.,
  • Q3. Write a pyspark code to join two tables and explain broadcastjoin() & what it does?
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Recruitment Consulltant and was interviewed in Nov 2024. There were 2 interview rounds.

Round 1 - One-on-one 

(2 Questions)

  • Q1. What are the various data warehousing techniques used, and can you explain them in detail?
  • Ans. 

    Various data warehousing techniques include dimensional modeling, star schema, snowflake schema, and data vault.

    • Dimensional modeling involves organizing data into facts and dimensions to facilitate easy querying and analysis.

    • Star schema is a type of dimensional modeling where a central fact table is connected to multiple dimension tables.

    • Snowflake schema is an extension of star schema where dimension tables are normali...

  • Answered by AI
  • Q2. How has your analytics work contributed to the organization?
  • Ans. 

    My analytics work has helped the organization make data-driven decisions, improve operational efficiency, and identify new opportunities for growth.

    • Developed data models and algorithms to optimize business processes

    • Generated insights from large datasets to drive strategic decision-making

    • Identified trends and patterns to improve customer experience and retention

    • Implemented data governance policies to ensure data quality

  • Answered by AI
Round 2 - Psychometric Test 

(2 Questions)

  • Q1. How would you respond in various situations?
  • Ans. 

    I would respond in various situations by remaining calm, assessing the situation, and providing a thoughtful and strategic solution.

    • Remain calm and composed

    • Assess the situation thoroughly

    • Provide a thoughtful and strategic solution

    • Communicate effectively with all parties involved

  • Answered by AI
  • Q2. What is more important career , team
  • Ans. 

    Both career and team are important, but ultimately career growth should be prioritized.

    • Career growth is essential for personal development and achieving professional goals.

    • A strong team can support career growth by providing mentorship, collaboration, and opportunities for learning.

    • Balancing career and team dynamics is key to long-term success in any role.

  • Answered by AI

Interview Preparation Tips

Topics to prepare for TCS Data Architect interview:
  • Data Architecture
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed in Jun 2024. There were 3 interview rounds.

Round 1 - Technical 

(3 Questions)

  • Q1. Questions related to the current and past projects.
  • Q2. Aws related questions.
  • Q3. Data warehousing basics
Round 2 - Technical 

(2 Questions)

  • Q1. Explain about the roles and responsibilities.
  • Q2. Discussion about the role in Genpact.
Round 3 - HR 

(2 Questions)

  • Q1. Asked about expectated salary
  • Q2. Why are you switching

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare about the points given in your resume and the work you have done.
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Asked about data tools other than AWS services
  • Q2. When did you use HUDI and Iceberg
  • Ans. 

    I have used HUDI and Iceberg in my previous project for managing large-scale data lakes efficiently.

    • Implemented HUDI for incremental data ingestion and managing large datasets in real-time

    • Utilized Iceberg for efficient table management and data versioning

    • Integrated HUDI and Iceberg with Apache Spark for processing and querying data

  • Answered by AI

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. What is dba, explain the architecture of dba
  • Ans. 

    DBA stands for Database Administrator. The architecture of DBA involves managing and maintaining databases to ensure data integrity and security.

    • DBA is responsible for installing, configuring, and upgrading database software.

    • They monitor database performance and troubleshoot issues.

    • DBA designs and implements backup and recovery strategies to prevent data loss.

    • They also manage user access and security permissions within...

  • Answered by AI
  • Q2. How you will maintain the database and what are the types of backup
  • Ans. 

    Maintaining the database involves regular monitoring, performance tuning, applying patches, and ensuring backups are taken regularly.

    • Regularly monitor database performance and usage

    • Perform routine maintenance tasks such as applying patches and updates

    • Take regular backups to ensure data integrity and disaster recovery

    • Implement security measures to protect the database from unauthorized access

    • Optimize database performanc

  • Answered by AI
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(3 Questions)

  • Q1. Difference between join and lookup
  • Ans. 

    Join is used to combine rows from two or more tables based on a related column, while lookup is used to retrieve data from a reference table based on a matching key.

    • Join combines rows from multiple tables based on a related column

    • Lookup retrieves data from a reference table based on a matching key

    • Join can result in duplicate rows if there are multiple matches, while lookup returns only the first matching row

    • Join is use...

  • Answered by AI
  • Q2. Diffrence between fact table and dimension table
  • Ans. 

    Fact table contains quantitative data and measures, while dimension table contains descriptive attributes.

    • Fact table contains numerical data that can be aggregated (e.g. sales revenue, quantity sold)

    • Dimension table contains descriptive attributes for analysis (e.g. product name, customer details)

    • Fact table is typically normalized, while dimension table is denormalized for faster queries

    • Fact table is usually larger in s

  • Answered by AI
  • Q3. Sed command to display last before line
  • Ans. 

    Use sed command to display the line before a specific pattern

    • Use 'sed -n '/pattern/{g;1!p;};h' file.txt' to display the line before the pattern

    • Replace 'pattern' with the specific pattern you are looking for

    • This command will display the line before the pattern in the file

  • Answered by AI

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Hard
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed in May 2024. There were 2 interview rounds.

Round 1 - One-on-one 

(2 Questions)

  • Q1. Data Modeling Concepts, SQL Query
  • Q2. Data Governance, Data Lineage, ETL process,
Round 2 - Coding Test 

SQL Scripts to write and also also asked to design an data model of my choice in Telecom Domain

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
-
Result
Selected Selected
Round 1 - Technical 

(2 Questions)

  • Q1. What is database architecture?
  • Ans. 

    Database architecture refers to the design and structure of a database system.

    • Database architecture includes the organization of data, storage, retrieval, and security mechanisms.

    • It involves defining the relationships between data elements and how they are stored and accessed.

    • Examples of database architectures include hierarchical, network, relational, and object-oriented.

    • Database architecture also includes the choice ...

  • Answered by AI
  • Q2. Difference between delete and truncate
  • Ans. 

    Delete removes rows one by one, while truncate removes all rows at once.

    • Delete is a DML command, while truncate is a DDL command.

    • Delete can be rolled back, while truncate cannot be rolled back.

    • Delete fires triggers, while truncate does not fire triggers.

    • Delete is slower as it logs individual row deletions, while truncate is faster as it logs the deallocation of the data pages.

    • Example: DELETE FROM table_name WHERE condi

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - prepare well

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Architecture of sql
  • Ans. 

    SQL architecture refers to the structure and components of a SQL database system.

    • SQL architecture includes components like storage engine, query processor, and buffer manager.

    • The storage engine manages data storage and retrieval, while the query processor processes SQL queries.

    • The buffer manager handles caching and memory management to optimize performance.

    • Examples of SQL architectures include MySQL, Oracle, and SQL Se

  • Answered by AI
  • Q2. Recovery models

Skills evaluated in this interview

Accenture Interview FAQs

How many rounds are there in Accenture Lead Data Engineer interview?
Accenture interview process usually has 1 rounds. The most common rounds in the Accenture interview process are Technical.
What are the top questions asked in Accenture Lead Data Engineer interview?

Some of the top questions asked at the Accenture Lead Data Engineer interview -

  1. Given a DataFrame df with columns 'A', 'B','C' how would you group the data by ...read more
  2. Explain the difference deepcopy() and copy() methods in Python's copy module. P...read more
  3. Discuss the concept of Python decorators and provide an example of how you woul...read more

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Accenture Lead Data Engineer Interview Process

based on 4 interviews

Interview experience

4.5
  
Good
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Accenture Lead Data Engineer Salary
based on 66 salaries
₹13.3 L/yr - ₹31 L/yr
18% less than the average Lead Data Engineer Salary in India
View more details

Accenture Lead Data Engineer Reviews and Ratings

based on 5 reviews

4.4/5

Rating in categories

4.8

Skill development

4.4

Work-life balance

4.2

Salary

4.2

Job security

4.5

Company culture

3.5

Promotions

3.8

Work satisfaction

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