ShopUp Interview Questions, Process, and Tips

27 aptitude qusetions (easy-medium)

There was an option to select between Hard Aptitude Test and Coding Test. I went for coding test. Easy questions on arrays and strings.

Q1. Basic Coding Questions
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Q2. Projects/Experience Discussion
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Q3. Discussion on APIs and how they work
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Q1. Check a number is prime or not.
Ans. 
To check if a number is prime, iterate from 2 to the square root of the number and check for divisibility.
• Start by checking if the number is less than 2, in which case it is not prime.

• Iterate from 2 to the square root of the number and check if the number is divisible by any of these numbers.

• If the number is divisible by any number in the range, it is not prime. Otherwise, it is prime.
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Q2. A two pointer question (two sum)
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Q1. OS and DBMS questions
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Q2. Multihreading vs Multiprocessing
Ans. 
Multithreading allows multiple threads to share the same memory space, while multiprocessing involves separate memory spaces for each process.
• Multithreading is more lightweight and efficient than multiprocessing.

• Multithreading is suitable for tasks that involve I/O operations, while multiprocessing is better for CPU-bound tasks.

• Examples of multithreading include web servers handling multiple requests concurrently, whil...read more
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Q3. ACID principles and SQL queries
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Q4. Reverse a Linked List
Ans. 
Reverse a linked list by changing the next pointers of each node to point to the previous node.
• Start with three pointers: current, previous, and next.

• Iterate through the linked list, updating the next pointer of each node to point to the previous node.

• Update the previous, current, and next pointers for each iteration.

• Example: 1 -> 2 -> 3 -> 4 -> null, after reversing: 4 -> 3 -> 2 -> 1 -> null
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Q5. Edit Alphabets (A Dynamic Programming question)
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Q6. A two pointer based question.
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Q1. A graph question to find path in a maze.
Ans. 
Use depth-first search or breadth-first search to find a path in a maze graph.
• Implement a graph representation of the maze using an adjacency list or matrix.

• Use depth-first search (DFS) or breadth-first search (BFS) to explore the maze and find a path from start to end.

• Track visited nodes to avoid infinite loops and dead ends.

• Consider edge cases such as multiple paths, loops, and obstacles in the maze.
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Q2. Find area under a graph (coding question)
Ans. 
Calculate the area under a graph using numerical integration.
• Use numerical integration methods like trapezoidal rule or Simpson's rule to approximate the area under the curve.

• Divide the graph into small segments and calculate the area of each segment, then sum them up to get the total area.

• Make sure to handle cases where the graph is below the x-axis by taking the absolute value of the function before calculating the a
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Q3. Hard SQL queries were asked
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Q1. General Questions / nothing technical or job relevant
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Basic questions on time and days

Topics on search sorting trees and many more

Moderate level questions asked in maths aptitude , reasoning train, work time, ratio etc.

2 coding question asked and 45 min are given to solve.

Q1. Some basic code snippets, list comprehension, patterns
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Q2. In depth ml and stats question for data science role, project life cycle
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Distance,average,number series

Use Vlookup and reconcile the files and get the data using pivot table find the total transaction per day

Q1. Self introduction, where you see yourself in five years?,Technical questions
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