Data Analytics
110K subscribers
189 photos
2 files
904 links
Perfect channel to learn Data Analytics

Learn SQL, Python, Alteryx, Tableau, Power BI and many more

For Promotions: @coderfun @love_data
Download Telegram
GigaChat 3.5 Ultra Publicly Released — The New Generation of the Flagship Model

The GigaChat team has released GigaChat 3.5 Ultra as open source—a new 432B model under the MIT license. This is the first open-source hybrid of GatedDeltaNet and MLA scaled to hundreds of billions of parameters, featuring a proprietary training recipe we refined through more than 1,500 experiments. The model has grown in terms of code, mathematics, agent scenarios, and application domains—yet it’s 40% smaller than GigaChat 3.1 Ultra.


What’s inside:

🔘A proprietary hybrid MLA + Gated DeltaNet architecture with a dedicated stabilization framework, without which this hybrid setup would not train reliably at this scale;
🔘 Gated Attention: the model can locally down-weight overly strong signals from the attention layer;
🔘GatedNorm: normalization with an explicit gate that controls signal magnitude across features;
🔘Approximately 4x lower KV cache per token: with the same memory budget, the model can support 2.14x longer context and deliver a 20% throughput increase under load;
🔘Two MTP heads, enabling up to 2.2x faster generation;
🔘FP8 across all training stages with no quality degradation compared with bf16, enabled by custom Triton and CUDA kernels;
🔘A new online RL stage after SFT and DPO.

Results:

🔘 GigaChat-3.5-Ultra-Base outperforms DeepSeek V3.2 Exp Base and DeepSeek V4 Flash Base on average across a set of general, math, and code benchmarks:
🔘 GigaChat-3.5-Ultra-Instruct is comparable to DeepSeek V3.2 in terms of average score, despite having half the size;
🔘 According to the MiniMax-M2.7 LLM judge, the average win rate against GigaChat 3.1 Ultra is 75.9%, and against GPT-5 is 68.7%.

The entire stack — data (our own LLM-filtered Common Crawl, 600+ programming languages in the code), architecture, training methodology, and infrastructure — was built end-to-end by GigaChat team.

➡️ HuggingFace
Please open Telegram to view this post
VIEW IN TELEGRAM
4👏1
Scenario based  Interview Questions & Answers for Data Analyst

1. Scenario: You are working on a SQL database that stores customer information. The database has a table called "Orders" that contains order details. Your task is to write a SQL query to retrieve the total number of orders placed by each customer.
  Question:
  - Write a SQL query to find the total number of orders placed by each customer.
Expected Answer:
    SELECT CustomerID, COUNT(*) AS TotalOrders
    FROM Orders
    GROUP BY CustomerID;

2. Scenario: You are working on a SQL database that stores employee information. The database has a table called "Employees" that contains employee details. Your task is to write a SQL query to retrieve the names of all employees who have been with the company for more than 5 years.
  Question:
  - Write a SQL query to find the names of employees who have been with the company for more than 5 years.
Expected Answer:
    SELECT Name
    FROM Employees
    WHERE DATEDIFF(year, HireDate, GETDATE()) > 5;

Power BI Scenario-Based Questions

1. Scenario: You have been given a dataset in Power BI that contains sales data for a company. Your task is to create a report that shows the total sales by product category and region.
    Expected Answer:
    - Load the dataset into Power BI.
    - Create relationships if necessary.
    - Use the "Fields" pane to select the necessary fields (Product Category, Region, Sales).
    - Drag these fields into the "Values" area of a new visualization (e.g., a table or bar chart).
    - Use the "Filters" pane to filter data as needed.
    - Format the visualization to enhance clarity and readability.

2. Scenario: You have been asked to create a Power BI dashboard that displays real-time stock prices for a set of companies. The stock prices are available through an API.
  Expected Answer:
    - Use Power BI Desktop to connect to the API.
    - Go to "Get Data" > "Web" and enter the API URL.
    - Configure the data refresh settings to ensure real-time updates (e.g., setting up a scheduled refresh or using DirectQuery if supported).
    - Create visualizations using the imported data.
    - Publish the report to the Power BI service and set up a data gateway if needed for continuous refresh.

3. Scenario: You have been given a Power BI report that contains multiple visualizations. The report is taking a long time to load and is impacting the performance of the application.
    Expected Answer:
    - Analyze the current performance using Performance Analyzer.
    - Optimize data model by reducing the number of columns and rows, and removing unnecessary calculations.
    - Use aggregated tables to pre-compute results.
    - Simplify DAX calculations.
    - Optimize visualizations by reducing the number of visuals per page and avoiding complex custom visuals.
    - Ensure proper indexing on the data source.

Free SQL Resources: https://whatsapp.com/channel/0029VanC5rODzgT6TiTGoa1v

Like if you need more similar content

Hope it helps :)
9
𝗔𝗜 𝗶𝗻 𝗣𝗿𝗼𝗱𝘂𝗰𝘁 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 𝗙𝗥𝗘𝗘 𝗢𝗻𝗹𝗶𝗻𝗲 𝗠𝗮𝘀𝘁𝗲𝗿𝗰𝗹𝗮𝘀𝘀 😍

💫 Join this live masterclass and gain practical insights into AI-powered Product Management, in-demand skills

💫Roadmap to building a successful Product Management career

Eligibility :- Recent Graduates & Working Professionals

𝗥𝗲𝗴𝗶𝘀𝘁𝗲𝗿 𝗙𝗼𝗿 𝗙𝗥𝗘𝗘👇 :-

https://pdlink.in/44VeqIA

( Limited Slots ..Hurry Up‍ )

Date & Time :- 11th July 2026 , 8:00 PM (IST)
3👍1
𝗜𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄𝗲𝗿:
You have 2 minutes to solve this SQL query.

Q: Find the customer(s) who placed orders in every month of the year 2025.

Assume the table structure:
orders(order_id, customer_id, order_date)

𝗠𝗲: Challenge accepted! 💪

SELECT
customer_id
FROM orders
WHERE YEAR(order_date) = 2025
GROUP BY customer_id
HAVING COUNT(DISTINCT MONTH(order_date)) = 12;


💡 Explanation:
This query identifies customers who placed at least one order in every month of 2025.

WHERE YEAR(order_date) = 2025 filters orders from the year 2025
GROUP BY customer_id groups all orders by customer
COUNT(DISTINCT MONTH(order_date)) counts the unique months in which each customer placed an order
HAVING ... = 12 ensures the customer has orders in all 12 months

This question tests your understanding of:
Date Functions (YEAR, MONTH)
GROUP BY
HAVING
COUNT(DISTINCT)

🎯 Expected Output Example

| Customer ID |
|-------------|
| 101 |
| 205 |

These customers placed at least one order in every month of 2025.

🚀 Alternative (Database-Agnostic SQL)

SELECT
customer_id
FROM orders
WHERE EXTRACT(YEAR FROM order_date) = 2025
GROUP BY customer_id
HAVING COUNT(DISTINCT EXTRACT(MONTH FROM order_date)) = 12;


This version works with databases like PostgreSQL and Oracle that support the EXTRACT() function.

🚀 Tip for SQL Job Seekers:
Whenever you see interview questions containing phrases like:
"Every month" / "Every quarter" / "Every year" / "Every category"

Think of COUNT(DISTINCT ...) combined with GROUP BY and HAVING. This is a very common SQL interview pattern.

❤️ React with ❤️ for more interview challenges!
15
𝗠𝗶𝗰𝗿𝗼𝘀𝗼𝗳𝘁 𝗙𝗥𝗘𝗘 𝗟𝗲𝗮𝗿𝗻𝗶𝗻𝗴 𝗥𝗲𝘀𝗼𝘂𝗿𝗰𝗲𝘀🎓

Offers a wide range of free learning resources through Microsoft Learn, helping students, freshers, and professionals build job-ready skills at their own pace.

100% FREE self-paced learning modules
Official learning platform from Microsoft

🔗 𝗘𝗻𝗿𝗼𝗹𝗹 𝗙𝗼𝗿 𝗙𝗥𝗘𝗘👇:

https://pdlink.in/4paqRJS

Explore Microsoft’s free resources. Build in-demand skills and make your profile stronger.
𝗜𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄𝗲𝗿: 
You have 2 minutes to solve this SQL query.

Q: Find the employee(s) who received the highest salary increment compared to their previous salary.

Assume the table structure: 
salary_history(employee_id, salary, effective_date)

𝗠𝗲: Challenge accepted! 💪

WITH salary_changes AS (
    SELECT
        employee_id,
        salary,
        effective_date,
        salary - LAG(salary) OVER (
            PARTITION BY employee_id
            ORDER BY effective_date
        ) AS salary_increment
    FROM salary_history
)
SELECT
    employee_id,
    salary_increment
FROM (
    SELECT
        employee_id,
        salary_increment,
        DENSE_RANK() OVER (
            ORDER BY salary_increment DESC
        ) AS rnk
    FROM salary_changes
    WHERE salary_increment IS NOT NULL
) ranked
WHERE rnk = 1;


💡 Explanation: 
This query calculates each employee's salary increment and then finds the highest increment across all employees.

• LAG(salary) retrieves the employee's previous salary
• The difference between the current and previous salary gives the increment
• DENSE_RANK() ranks increments from highest to lowest
• The outer query returns all employees tied for the highest salary increment

This question tests your understanding of: 
LAG() Window Function 
Common Table Expressions (CTEs) 
DENSE_RANK() 
Time-Series Data Analysis

🎯 Expected Output Example

Employee ID | Salary Increment 
101 | 20,000 
205 | 20,000 

Both employees received the largest salary increase.

🚀 Why Interviewers Ask This? 
This is a classic window function interview question. It evaluates your ability to compare a row with its previous row—a common requirement in payroll, finance, and audit systems.

🚀 Tip for SQL Job Seekers: 
Master these analytical window functions: 
LAG() / LEAD() / FIRST_VALUE() / LAST_VALUE() / NTILE() 

These functions are frequently tested in product-based companies and data-focused interviews because they simplify complex row-by-row comparisons.

❤️ React with ❤️ for more interview challenges!
13
𝗠𝗮𝘀𝘁𝗲𝗿 𝗧𝗵𝗲𝘀𝗲 𝗛𝗶𝗴𝗵-𝗗𝗲𝗺𝗮𝗻𝗱 𝗦𝗸𝗶𝗹𝗹𝘀 𝘁𝗼 𝗟𝗮𝗻𝗱 𝗛𝗶𝗴𝗵-𝗣𝗮𝘆𝗶𝗻𝗴 𝗝𝗼𝗯𝘀 🔥

This guide highlights 3 powerful skills that are opening doors to high-paying roles across tech and business .🎓

Perfect For
👨‍🎓 Students
💼 Freshers
📈 Job seekers trying to improve employability
🚀 Anyone who wants to build a future-proof career with better salary potential

🔗 𝗘𝗻𝗿𝗼𝗹𝗹 𝗙𝗼𝗿 𝗙𝗥𝗘𝗘👇:

https://pdlink.in/4vXeGmm

🚀 Start learning today. Build in-demand skills. Position yourself for better opportunities and bigger career growth.
4👏1
🚀 Essential Tools Every Data Analyst Should Know

If you're starting your journey as a Data Analyst, focus on these essential tools first. These are the tools most commonly required in job descriptions and used in day-to-day work.

📊 1. Microsoft Excel

Used For:

Data Cleaning

Formulas & Functions

Pivot Tables

Dashboards

🗄️ 2. SQL

Used For:

Querying Databases

Data Extraction

Data Analysis

Reporting

📈 3. Power BI

Used For:

Interactive Dashboards

Data Visualization

Business Intelligence

KPI Reporting

📊 4. Tableau

Used For:

Data Visualization

Dashboard Creation

Business Reporting

🐍 5. Python

Used For:

Data Cleaning

Automation

Data Analysis

Data Visualization

🔄 6. Power Query

Used For:

Data Transformation

Data Cleaning

ETL Processes

🚀 Double Tap ❤️ For More
23
🎓 𝗧𝗼𝗽 𝗖𝗼𝗺𝗽𝗮𝗻𝗶𝗲𝘀 𝗢𝗳𝗳𝗲𝗿𝗶𝗻𝗴 𝗙𝗥𝗘𝗘 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗖𝗼𝘂𝗿𝘀𝗲𝘀 𝗶𝗻 𝟮𝟬𝟮𝟲

Boost your resume with Industry-recognized certifications without spending a single rupee 🌟

📚 Available from:
Google
Microsoft
Cisco
IBM
HP
Qualcomm
TCS
Infosys

🔗 𝗘𝗻𝗿𝗼𝗹𝗹 𝗙𝗼𝗿 𝗙𝗥𝗘𝗘👇:

https://pdlink.in/3SNiXKz

🚀 Don't miss these FREE certification opportunities in 2026!
4
🚀 𝗣𝗮𝘆 𝗔𝗳𝘁𝗲𝗿 𝗣𝗹𝗮𝗰𝗲𝗺𝗲𝗻𝘁 𝗣𝗿𝗼𝗴𝗿𝗮𝗺 - 𝗟𝗮𝘂𝗻𝗰𝗵 𝗬𝗼𝘂𝗿 𝗧𝗲𝗰𝗵 𝗖𝗮𝗿𝗲𝗲𝗿

If you’re serious about starting your career in tech, this is one opportunity you shouldn’t miss 🚀

2000+ Students Already Placed
🤝 500+ Hiring Partners
💼 Salary: ₹7.4 LPA
🚀 Highest Package: ₹41 LPA

💻 Get trained in in-demand tech skills
👨‍🏫 Learn from industry experts
📈 Get dedicated placement support
💸 Pay only after you land a job

𝐑𝐞𝐠𝐢𝐬𝐭𝐞𝐫 𝐍𝐨𝐰 👇:-

 https://pdlink.in/42WOE5H

Hurry! Limited seats are available.🏃‍♂️
𝗜𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄𝗲𝗿: 
You have 2 minutes to solve this SQL query. 
Find the employee(s) who have worked on the highest number of distinct projects. 

Assume the table structure: employee_projects(employee_id, project_id)

𝗠𝗲: Challenge accepted! 💪

SELECT
    employee_id,
    total_projects
FROM (
    SELECT
        employee_id,
        COUNT(DISTINCT project_id) AS total_projects,
        DENSE_RANK() OVER (
            ORDER BY COUNT(DISTINCT project_id) DESC
        ) AS rnk
    FROM employee_projects
    GROUP BY employee_id
) ranked
WHERE rnk = 1;


💡 Explanation: 
This query counts the number of unique projects each employee has worked on and identifies those with the highest count.

• COUNT(DISTINCT project_id) counts unique projects for each employee
• GROUP BY employee_id creates one record per employee
• DENSE_RANK() ranks employees based on the number of projects
• The outer query returns all employees tied for the highest number of projects

This question tests your understanding of: 
COUNT(DISTINCT) 
GROUP BY 
Window Functions DENSE_RANK 
Ranking Aggregated Results 

🎯 Expected Output Example 
Employee ID | Total Projects 
101 | 12 
205 | 12 

Both employees have worked on the highest number of distinct projects.

🚀 Alternative Without Window Functions

SELECT
    employee_id,
    COUNT(DISTINCT project_id) AS total_projects
FROM employee_projects
GROUP BY employee_id
HAVING COUNT(DISTINCT project_id) = (
    SELECT MAX(project_count)
    FROM (
        SELECT
            COUNT(DISTINCT project_id) AS project_count
        FROM employee_projects
        GROUP BY employee_id
    ) t
);


This solution uses nested subqueries and MAX() instead of window functions.

🚀 Tip for SQL Job Seekers: 
Many interview questions involve ranking aggregated results, such as: 
Highest number of projects, Most orders, Maximum sales, Highest attendance, Most logins 

Practice combining GROUP BY with window functions like DENSE_RANK() to solve these efficiently.

❤️ React with ❤️ for more interview challenges!
12👏2
🚀 𝗧𝗼𝗽 𝟱 𝗦𝗸𝗶𝗹𝗹𝘀 𝗧𝗼 𝗠𝗮𝘀𝘁𝗲𝗿 𝗜𝗻 𝟮𝟬𝟮𝟲 – 𝗘𝗻𝗿𝗼𝗹𝗹 𝗙𝗼𝗿 𝗙𝗥𝗘𝗘! 🎓

Want to build a high-paying, future-ready career? 🔥 Start learning the most in-demand skills:

💫 AI & ML :- https://pdlink.in/4phANS2

📊 Data Analytics :- https://pdlink.in/4wh2ugB

🔐 Cyber Security :- https://pdlink.in/4wCW7DJ

☁️ Cloud Computing :- https://pdlink.in/4yhBuie

💻 Other Tech Skills :- https://pdlink.in/4peUslB

📢 Share with your friends & college groups! 🚀🔥
4
🚀 Power BI Interview Challenge #1 🔥

𝗜𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄𝗲𝗿:
You have 2 minutes to solve this Power BI problem.

You have a Sales table with the following columns:
Order Date
Sales

Create a DAX measure to calculate Year-to-Date (YTD) Sales.

𝗠𝗲: Challenge accepted! 💪

YTD Sales =
TOTALYTD(
SUM(Sales[Sales]),
Sales[Order Date]
)

💡 Explanation:
TOTALYTD() calculates the cumulative sales from the beginning of the year up to the current date.
• SUM(Sales) returns the total sales amount
• Sales[Order Date] is the date column used for the YTD calculation
• The measure automatically resets at the start of each new year[Sales]

🎯 Expected Output Example
Month | Sales | YTD Sales
--- | --- | ---
Jan | 10,000 | 10,000
Feb | 15,000 | 25,000
Mar | 12,000 | 37,000
Apr | 18,000 | 55,000

🚀 Bonus (Using a Calendar Table)
YTD Sales =
TOTALYTD(
[Total Sales],
'Calendar'[Date]
)

Using a dedicated Calendar/Date table is considered a Power BI best practice and is recommended for all time intelligence calculations.

🚀 Tip for Power BI Job Seekers:
Time Intelligence is one of the most frequently tested topics in Power BI interviews. Make sure you can confidently write measures for:
• YTD (Year-to-Date)
• MTD (Month-to-Date)
• QTD (Quarter-to-Date)
• Previous Year Sales
• YoY Growth %
• Rolling 12 Months

These are commonly used in business dashboards and technical interviews.

Power BI Resources: https://whatsapp.com/channel/0029Vai1xKf1dAvuk6s1v22c

❤️ React with ❤️ for more Power BI interview challenges!
14
🚀 𝗙𝗥𝗘𝗘 𝗠𝗶𝗰𝗿𝗼𝘀𝗼𝗳𝘁 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗖𝗼𝘂𝗿𝘀𝗲𝘀 💻🔥

These FREE courses can help you learn Data Analytics, Power BI & Excel skills that companies actually hire for 🚀

What you’ll learn:
Excel + Power BI 📊
Data Cleaning with Power Query
Interactive Dashboards
Modern Analytics Skills

💯 Beginner Friendly + FREE Learning

𝗘𝗻𝗿𝗼𝗹𝗹 𝗙𝗼𝗿 𝗙𝗥𝗘𝗘👇:-

https://pdlink.in/4tkPNyM

🎓 Perfect for Students, Freshers & Career Switchers
2
🚀 Power BI Interview Challenge #2 🔥

𝗜𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄𝗲𝗿:
You have 2 minutes to solve this Power BI problem.

You have a Sales table with the columns: Order Date & Sales

Create a DAX measure to calculate Month-to-Date (MTD) Sales.

𝗠𝗲: Challenge accepted! 💪
MTD Sales =
TOTALMTD(
SUM(Sales[Sales]),
Sales[Order Date]
)

💡 Explanation:
TOTALMTD() calculates cumulative sales from the beginning of the current month up to the selected date.
SUM(Sales) returns the total sales amount.
Sales[Order Date] is the date column used for the MTD calculation.
• The measure automatically resets at the beginning of each new month.

🎯 Expected Output Example
Date | Sales | MTD Sales
Jul 1 | 2,000 | 2,000
Jul 2 | 3,500 | 5,500
Jul 3 | 1,500 | 7,000
Jul 4 | 4,000 | 11,000

🚀 Bonus (Using a Calendar Table)
MTD Sales =
TOTALMTD(
[Total Sales],
'Calendar'[Date]
)

Using a dedicated Calendar table improves model performance and ensures accurate time intelligence calculations.

🚀 Tip for Power BI Job Seekers:
Always create a proper Date Table and mark it as a Date Table in Power BI before using Time Intelligence functions. Many interview questions are designed to test this best practice.

Power BI Resources: https://whatsapp.com/channel/0029Vai1xKf1dAvuk6s1v22c

❤️ React with ❤️ for more Power BI interview challenges!
8
𝗗𝗮𝘁𝗮 𝗦𝗰𝗶𝗲𝗻𝗰𝗲 𝗙𝗥𝗘𝗘 𝗢𝗻𝗹𝗶𝗻𝗲 𝗠𝗮𝘀𝘁𝗲𝗿𝗰𝗹𝗮𝘀𝘀 😍

💫 Know The Tools, Skills & Mindset to Land your first Job

💫Understand the Foundations, tools, skills & the core essentials that you need to excel in the Data Science domain.

Eligibility :- Students ,Freshers & Working Professionals

𝗥𝗲𝗴𝗶𝘀𝘁𝗲𝗿 𝗙𝗼𝗿 𝗙𝗥𝗘𝗘👇 :-

https://pdlink.in/4btjs2G

( Limited Slots ..Hurry Up‍ )

Date & Time :- 17th July 2026 , 7:00 PM
2
🚀 𝟲 𝗠𝘂𝘀𝘁-𝗧𝗮𝗸𝗲 𝗖𝗼𝘂𝗿𝘀𝗲𝘀 𝗧𝗼 𝗨𝗽𝗴𝗿𝗮𝗱𝗲 𝗬𝗼𝘂𝗿 𝗥𝗲𝘀𝘂𝗺𝗲 𝗙𝗢𝗥 𝗙𝗥𝗘𝗘

Make your resume stand out to recruiters without spending a single rupee

100% FREE Learning
Free Certificates
Beginner-Friendly
Self-Paced Learning
Resume & LinkedIn Boost
Industry-Relevant Skills

𝗘𝗻𝗿𝗼𝗹𝗹 𝗙𝗼𝗿 𝗙𝗥𝗘𝗘👇:-

https://pdlink.in/3Rmbzp1

🚀 Learn for Free. Get Certified. Upgrade Your Resume. Land Your Dream Job!
2
🚀 Power BI Interview Challenge #3 🔥

𝗜𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄𝗲𝗿:
You have 2 minutes to solve this Power BI problem.

You have a Sales table with the following columns:

• Order Date
• Sales

Create a DAX measure to calculate Year-over-Year (YoY) Sales Growth %.

𝗠𝗲: Challenge accepted! 💪

YoY Growth % =
VAR CurrentYearSales = [Total Sales]
VAR PreviousYearSales =
CALCULATE(
[Total Sales],
SAMEPERIODLASTYEAR('Calendar'[Date])
)
RETURN
DIVIDE(
CurrentYearSales - PreviousYearSales,
PreviousYearSales,
0
)


💡 Explanation:

This measure calculates the percentage growth in sales compared to the same period in the previous year.

CurrentYearSales stores the current period's sales.
SAMEPERIODLASTYEAR() retrieves sales for the same period last year.
DIVIDE() safely calculates the percentage growth and avoids divide-by-zero errors.

This challenge tests your understanding of:
Variables (VAR)
CALCULATE()
SAMEPERIODLASTYEAR()
DIVIDE()
Time Intelligence

🎯 Expected Output Example

For Year 2025: Sales = 120,000, Previous Year Sales = 100,000, YoY Growth % = 20%
For Year 2026: Sales = 150,000, Previous Year Sales = 120,000, YoY Growth % = 25%

🚀 Bonus (YoY Sales Difference)

YoY Sales Difference =
[Total Sales] -
CALCULATE(
[Total Sales],
SAMEPERIODLASTYEAR('Calendar'[Date])
)


This measure returns the absolute increase or decrease in sales compared to the previous year.

🚀 Tip for Power BI Job Seekers:

CALCULATE() is the most important DAX function. Learn how it modifies the filter context because it's used in almost every advanced Power BI interview question.

Power BI Resources: https://whatsapp.com/channel/0029Vai1xKf1dAvuk6s1v22c

❤️ React with ❤️ for more Power BI interview challenges!
8
𝗔𝗜 & 𝗗𝗮𝘁𝗮 𝗦𝗰𝗶𝗲𝗻𝗰𝗲 𝗣𝗿𝗼𝗴𝗿𝗮𝗺 (𝗡𝗼 𝗖𝗼𝗱𝗶𝗻𝗴 𝗡𝗲𝗲𝗱𝗲𝗱)

Apply Now👉:- https://pdlink.in/4aYWald

By E&ICT Academy, IIT Roorkee

Batch Closing Soon - 18th July 2026
2
🚀 Power BI Interview Challenge #4 🔥

𝗜𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄𝗲𝗿:
You have 2 minutes to solve this Power BI problem.

You have a Sales table with the following columns:
Product
Sales

Create a DAX measure to calculate the percentage contribution of each product to total sales.

𝗠𝗲: Challenge accepted! 💪

Sales Contribution % =
DIVIDE(
[Total Sales],
CALCULATE(
[Total Sales],
ALL(Sales[Product])
),
0
)

💡 Explanation:
This measure calculates how much each product contributes to the total sales.
[Total Sales] returns the sales for the current product.
ALL(Sales) removes the product filter while keeping other filters intact.
CALCULATE() recalculates the total sales after removing the product filter.
DIVIDE() safely performs the division and avoids divide-by-zero errors.

This challenge tests your understanding of:
CALCULATE()
ALL()
DIVIDE()
Filter Context
Percentage Calculations

🎯 Expected Output Example
Product | Sales | Sales Contribution %
Laptop | 50,000 | 50%
Mouse | 20,000 | 20%
Keyboard | 15,000 | 15%
Monitor | 15,000 | 15%

🚀 Bonus (Dynamic Percentage by Selected Filters)

Sales Contribution % =
DIVIDE(
[Total Sales],
CALCULATE(
[Total Sales],
ALLSELECTED(Sales[Product])
),
0
)

Using ALLSELECTED() respects slicers and page filters while removing only the product filter, making the measure more interactive.

🚀 Tip for Power BI Job Seekers:
Understanding the difference between these functions is crucial for interviews:
ALL() → Removes all filters from the specified column or table.
ALLSELECTED() → Respects user selections made through slicers and filters.
REMOVEFILTERS() → Modern alternative to remove filters in many scenarios.

These are among the most frequently asked DAX concepts in Power BI interviews.

Power BI Resources: https://whatsapp.com/channel/0029Vai1xKf1dAvuk6s1v22c

❤️ React with ❤️ for more Power BI interview challenges!
10
📈 𝗗𝗮𝘁𝗮 𝗔𝗻𝗮𝗹𝘆𝘁𝗶𝗰𝘀 𝗙𝗥𝗘𝗘 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗖𝗼𝘂𝗿𝘀𝗲😍

Data Analytics is one of the most in-demand skills in today’s job market 💻

Beginner Friendly
Industry-Relevant Curriculum
Certification Included
100% Online

𝗘𝗻𝗿𝗼𝗹𝗹 𝗙𝗼𝗿 𝗙𝗥𝗘𝗘👇:- 

https://pdlink.in/4wh2ugB

🎯 Don’t miss this opportunity to build high-demand skills!