Udaan Intern Interview Questions and Answers

Public vs Govt sector

There were many sections.
There was a debugging section where basic code debugging was asked in MCQ.
In coding section,a total of two questions were asked. First question was basic string based with easy difficulty level.
Next one was of sliding window with little variation , medium difficulty.
Lastly was a section with hr type of questions.

Q1. A question based on topological sort was asked
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First round was a aptitude test of 25 question

Q1. Oops concept in java
Ans. 
Oops concept in Java refers to Object-Oriented Programming principles like inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance allows a class to inherit properties and behavior from another class.

• Encapsulation involves bundling data and methods that operate on the data into a single unit.

• Polymorphism allows objects to be treated as instances of their parent class.

• Abstraction hides the implementation d...read more
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Q2. Basic multi threading questions
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Q1. Code to make a pattern and explain each and every line of code
Ans. 
Code to create a pattern and explain each line of code
• Start by defining the number of rows and columns in the pattern

• Use nested loops to iterate through each row and column

• Decide the pattern you want to create and use conditional statements to determine the output for each position
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Q2. Puzzle: In how many minimum cut u can cut a cake in 8 piece
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Very impressive able to solve 100 coding questions within 10 mins

Q1. Find min in array
Ans. 
Find the minimum string in an array of strings.
• Iterate through the array and compare each string to find the minimum.

• Use a built-in function like sort() to sort the array and then return the first element.

• Consider using a loop to compare each element with the current minimum.
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Q2. Find max in array
Ans. 
Find the maximum value in an array of strings.
• Convert the strings to numbers if needed before finding the maximum value.

• Use a loop to iterate through the array and compare each element to find the maximum value.
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Q1. Basic SQL question.
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Q2. Order of execution
Ans. 
The order of execution refers to the sequence in which instructions or operations are executed in a program.
• The order of execution is determined by the programming language and the specific code being executed.

• Generally, code is executed line by line from top to bottom.

• However, there are exceptions such as loops, conditionals, and function calls that can alter the order of execution.

• In some programming languages, there...read more
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Q3. Window functions
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Q4. Aggregate functions
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Q1. How would you rate your proficiency in data analysis?
Ans. 
I rate my proficiency in data analysis as advanced.
• Proficient in using statistical software such as R and Python for data analysis

• Experienced in cleaning and organizing large datasets

• Skilled in creating data visualizations to communicate insights

• Have successfully completed data analysis projects during my academic studies
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Q2. Can you provide an example of how you have utilized Excel to enhance a process or improve efficiency?
Ans. 
Yes, I used Excel to automate data entry and analysis for a research project.
• Created macros in Excel to automatically import and organize data from multiple sources

• Used pivot tables and charts to analyze and visualize data trends

• Implemented conditional formatting to quickly identify outliers and discrepancies

• Saved time by setting up formulas for calculations and generating reports
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Q3. What is the average number of flights that take off daily from Delhi Airport?
Ans. 
The average number of flights that take off daily from Delhi Airport is approximately 1,300.
• Approximately 1,300 flights take off daily from Delhi Airport.

• The number of flights can vary depending on the day of the week and time of year.

• Delhi Airport is one of the busiest airports in India, serving both domestic and international flights.
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Q4. What is the average monthly consumption of tea in Mumbai?
Ans. 
The average monthly consumption of tea in Mumbai is approximately 3-4 kg per person.
• The average monthly consumption of tea in Mumbai varies depending on individual preferences and habits.

• Tea is a popular beverage in Mumbai, with many people consuming multiple cups a day.

• Factors such as age, gender, and socio-economic status can also influence tea consumption in Mumbai.
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