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I applied via Naukri.com and was interviewed in Jul 2024. There were 4 interview rounds.
Topics were, DSA, SQL, PL/SQL, Data Augmentation
Customer churn classification using a classification ML model
Bubble sort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements, and swaps them if they are in the wrong order.
Start with the first element and compare it with the next element, swapping if necessary
Repeat this process for each pair of adjacent elements in the array until the entire array is sorted
Continue this process for each element in the array until no more swaps are ne
An API (Application Programming Interface) is a set of rules and protocols that allows different software applications to communicate with each other.
APIs define the methods for requesting and receiving data between software applications
APIs can be used to access data from external sources, such as social media platforms or weather services
Examples of APIs include the Twitter API, Google Maps API, and Spotify API
I am a data analyst with a strong background in statistics and data visualization.
Graduated with a degree in Statistics
Proficient in programming languages like Python and R
Experience in analyzing large datasets and creating data visualizations
Strong problem-solving skills and attention to detail
I applied via Job Portal and was interviewed in Aug 2024. There were 2 interview rounds.
Sql and aptitude questions
I applied via Company Website
What people are saying about PayPal
I applied via Referral and was interviewed before Apr 2022. There were 3 interview rounds.
PayPal interview questions for designations
I applied via Campus Placement and was interviewed in Dec 2016. There were 6 interview rounds.
I am a data analyst with experience in analyzing and interpreting complex data sets to drive business insights.
Experienced in using statistical analysis tools such as Python, R, and SQL
Proficient in data visualization tools like Tableau and Power BI
Skilled in data cleaning, data mining, and data modeling techniques
Strong problem-solving and critical thinking skills
Effective communicator and team player
Example: I have w...
The biggest hurdle I faced during organizing the tech fest of my college was securing sponsorships.
Difficulty in convincing companies to sponsor the event
Limited budget for organizing a large-scale tech fest
Competition with other college events for sponsorships
Negotiating sponsorship deals and ensuring deliverables
Finding sponsors aligned with the theme and objectives of the tech fest
Yes, pursuing an MBA can enhance my skills and open up new career opportunities.
An MBA can provide a strong foundation in business and management principles.
It can help develop analytical and problem-solving skills.
An MBA can broaden my network and provide access to valuable connections.
It can open up leadership roles and higher-level positions in organizations.
Having an MBA can increase earning potential and job prosp...
Yes, Reliance Fresh should open a store in the north-eastern part of India.
The north-eastern part of India has a growing population and increasing consumer demand.
Reliance Fresh can tap into the untapped market potential in the region.
Opening a store in the north-eastern part of India can help Reliance Fresh expand its presence and increase its market share.
Reliance Fresh can leverage its existing supply chain and dist...
The number of people travelling by local metro in Mumbai is estimated to be in millions.
Mumbai has a population of over 20 million people.
The local metro is a popular mode of transportation in Mumbai.
During peak hours, the metro trains are usually crowded.
The metro network in Mumbai is extensive, covering various parts of the city.
The number of daily commuters on the metro can be estimated based on population density a
To find the nth salary in a dataset
Sort the dataset in descending order based on salary
Remove duplicates if necessary
Return the salary at index n-1
I applied via Approached by Company and was interviewed before Apr 2023. There was 1 interview round.
Implement lag() and lead() functions without using lag() or lead()
To implement lag(), shift the values in the array by one position to the right
To implement lead(), shift the values in the array by one position to the left
For example, to implement lag() on [1, 2, 3, 4], you can shift the values to get [null, 1, 2, 3]
For lead(), you can shift the values to get [2, 3, 4, null]
Optimising a query involves identifying bottlenecks and improving efficiency.
Identify slow-performing queries using tools like query execution plans.
Optimize database indexes to speed up query performance.
Limit the number of columns and rows returned in the query.
Avoid using SELECT * and instead specify only the necessary columns.
Use appropriate data types and avoid unnecessary data conversions.
Consider denormalizing d...
Replace 'b' with 'v' in the 3rd position of each string in an array
Iterate through each string in the array
Check if the 3rd position contains 'b'
If yes, replace 'b' with 'v'
I applied via LinkedIn and was interviewed before Mar 2023. There were 2 interview rounds.
The order of execution in SQL is: FROM, WHERE, GROUP BY, HAVING, SELECT, ORDER BY.
1. FROM: Specifies the tables involved in the query.
2. WHERE: Filters the rows based on specified conditions.
3. GROUP BY: Groups the rows that have the same values into summary rows.
4. HAVING: Filters groups based on specified conditions.
5. SELECT: Selects the columns to be included in the result set.
6. ORDER BY: Sorts the result set base
Conditional formatting in Excel allows users to format cells based on specified conditions.
Select the range of cells you want to apply conditional formatting to
Go to the 'Home' tab and click on 'Conditional Formatting'
Choose the desired formatting option, such as color scales, data bars, or icon sets
Set the conditions for when the formatting should be applied, such as greater than, less than, or equal to a certain valu...
I applied via Naukri.com and was interviewed in Sep 2023. There were 3 interview rounds.
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