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LinkedIn Interview Problems (25)

Problems reported from LinkedIn data science interviews

Status Title Difficulty
All Students Including Those Not Enrolled Pro Easy
Left Join to Find Missing Reviews Pro Easy
List All Employees and Their Department Names Pro Easy
Multi-Table Join with Quantities Pro Easy
One-Hot Encoding Free Easy
Show Tags for Each Article Pro Easy
Stratified Sampling for Classification Pro Easy
Apache Kafka Use Cases Pro Medium
Decision Tree Splitting Criterion Pro Medium
Departments With Average Salary Over 80000 Pro Medium
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Employee Project Assignments With Department Pro Medium
Feature Selection: Filter vs Wrapper Pro Medium
Find Employees With Specific Job Titles and Seniority Pro Medium
Full Outer Join Simulation Pro Medium
Running Revenue by Salesperson Pro Medium
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Self Join to Find Employee Pairs in Same Department Pro Medium
Spark vs Hadoop MapReduce Pro Medium
Students, Courses, and Their Instructors Pro Medium
3-Row Moving Average of Daily Signups Pro Hard
Hierarchical Self Join for Org Chart Pro Hard
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Join with Aggregation and Filtering Pro Hard
Polynomial Features Pro Hard
Second Highest Salary Per Department Pro Hard
Self Join: Employees and Their Managers Pro Hard
Self Join: Find Pairs of Employees in the Same Department Pro Hard
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