Skip to main content

Meesho PySpark Interview Questions for Data Engineers in 2025

Meesho PySpark Interview Questions for Data Engineers in 2025 Preparing for a PySpark interview? Let’s tackle some commonly asked questions, along with practical answers and insights to ace your next Data Engineering interview at Meesho or any top-tier tech company. 1. Explain how caching and persistence work in PySpark. When would you use cache() versus persist() and what are their performance implications? Answer : Caching : Stores data in memory (default) for faster retrieval. Use cache() when you need to reuse a DataFrame or RDD multiple times in a session without specifying storage levels. Example: python df.cache() df.count() # Triggers caching Persistence : Allows you to specify storage levels (e.g., memory, disk, or a combination). Use persist() when memory is limited, and you want a fallback to disk storage. Example: python from pyspark import StorageLevel df.persist(StorageLevel.MEMORY_AND_DISK) df.count() # Triggers persistence Performance Implications : cache() is ...
Post a Comment

Ad

Privacy Policy

 Effective Date: 27th Nov 2023

At CorporateInterviewPrep, your privacy is our priority. This Privacy Policy outlines the types of information we collect, how we use it, and the measures we take to protect your data when you visit our blog. By using our site, you agree to the terms outlined in this Privacy Policy.

Information We Collect

We collect two types of information from visitors:

  1. Personal Information:

    • We may collect names, email addresses, or other contact details if you voluntarily subscribe to our newsletter, leave comments, or fill out contact forms.

  2. Non-Personal Information:

    • Includes data such as browser type, IP address, referring/exit pages, and time spent on the blog. This information helps us improve our website’s functionality and user experience.

How We Use Your Information

We use the collected information for the following purposes:

  • To improve and personalize your experience on our blog.
  • To respond to your inquiries, comments, or feedback.
  • To analyze user behavior and improve our content, ensuring relevance to your interests.
  • To comply with legal obligations and prevent fraudulent activities.

Cookies and Web Beacons

CorporateInterviewPrep uses cookies to:

  • Track visitor preferences and behavior to deliver optimized content.
  • Enable third-party services like Google Analytics and Google AdSense.
    By continuing to browse, you consent to the use of cookies. You can disable cookies via your browser settings.

Third-Party Services

We use third-party advertising services like Google AdSense, which may collect information about your visits to display personalized ads. These services adhere to their privacy policies, which you can review on their respective websites.

Google AdSense Privacy Policy: Google Privacy Policy

Data Protection

We prioritize safeguarding your personal information. Our site uses industry-standard security protocols to prevent unauthorized access to your data.

Links to External Sites

Our blog may include links to other websites. CorporateInterviewPrep is not responsible for the privacy practices of external sites. Please review their privacy policies when visiting them.

Children’s Privacy

This blog does not knowingly collect personal information from children under 13. If you believe we have inadvertently collected such data, please contact us to remove it.

Your Privacy Choices

You have the right to:

  • Opt out of our email communications at any time.
  • Disable cookies in your browser.

Updates to This Privacy Policy

We may update this Privacy Policy periodically. Please check back for any changes. Continued use of our blog constitutes acceptance of these updates.

Contact Us

For questions regarding this Privacy Policy, 

contact us at:

Email: abhay.manda331@gmail.com

Comments

Post a Comment

Ad

Popular posts from this blog

Deloitte Data Analyst Interview Questions and Answer

Deloitte Data Analyst Interview Questions: Insights and My Personal Approach to Answering Them 1. Tell us about yourself and your current job responsibilities. Example Answer: "I am currently working as a Data Analyst at [Company Name], where I manage and analyze large datasets to drive business insights. My responsibilities include creating and maintaining Power BI dashboards, performing advanced SQL queries to extract and transform data, and collaborating with cross-functional teams to improve data-driven decision-making. Recently, I worked on a project where I streamlined reporting processes using DAX measures and optimized SQL queries, reducing report generation time by 30%." 2. Can you share some challenges you encountered in your recent project involving Power BI dashboards, and how did you resolve them? Example Challenge: In a recent project, one of the key challenges was handling complex relationships between multiple datasets, which caused performance issues and in...
Post a Comment
Read more

Deloitte Recent Interview Questions for Data Analyst Position November 2024

Deloitte Recent Interview Insights for a Data Analyst Position (0-3 Years) When preparing for an interview with a firm like Deloitte, particularly for a data analyst role, it's crucial to combine technical proficiency with real-world experiences. Below are my personalized insights into common interview questions. 1. Tell us about yourself and your current job responsibilities. Hi, I’m [Your Name], currently working as a Sr. Data Analyst with over 3.5 years of experience. I specialize in creating interactive dashboards, analyzing large datasets, and automating workflows. My responsibilities include developing Power BI dashboards for financial and operational reporting, analyzing trends in customer churn rates, and collaborating with cross-functional teams to implement data-driven solutions. Here’s a quick glimpse of my professional journey: Reporting financial metrics using Power BI, Excel, and SQL. Designing dashboards to track sales and marketing KPIs. Teaching data analysis conce...
Post a Comment
Read more

EXL Interview question and answer for Power BI Developer (3 Years of Experience)

EXL Interview Experience for Power BI Developer (3 Years of Experience) I recently appeared for an interview at EXL for the role of Power BI Developer . The selection process consisted of three rounds: 2 Technical Rounds 1 Managerial Round Here, I’ll share the key technical questions I encountered, along with my approach to answering them. SQL Questions 1️⃣ Write a SQL query to find the second most recent order date for each customer from a table Orders ( OrderID , CustomerID , OrderDate ). To solve this, I used the ROW_NUMBER() window function: sql WITH RankedOrders AS ( SELECT CustomerID, OrderDate, ROW_NUMBER () OVER ( PARTITION BY CustomerID ORDER BY OrderDate DESC ) AS RowNum FROM Orders ) SELECT CustomerID, OrderDate AS SecondMostRecentOrderDate FROM RankedOrders WHERE RowNum = 2 ; 2️⃣ Write a query to find the nth highest salary from a table Employees with columns ( EmployeeID , Name , Salary ). The DENSE_RANK() fu...
Post a Comment
Read more