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Edvoy Junior Data Engineer Interview Questions and Answers
Edvoy Junior Data Engineer Interview Experiences
1 interview found
achyut kumar
About strings length and reverse the string
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Interview questions from similar companies
(2 Questions)
- Q1. What data structure is used to implement a priority queue?
- Ans.
Binary heap is used to implement a priority queue.
Binary heap is a complete binary tree where each node has a value greater than or equal to its children.
It can be implemented using arrays, where the parent of node at index i is at index (i-1)/2.
Insertion and deletion operations have time complexity of O(log n) in a binary heap.
- Q2. How many trees will a binary tree have?
- Ans.
A binary tree can have any number of nodes, but the maximum number of trees with n nodes is 2^n.
A binary tree can have 0 nodes, 1 node, 2 nodes, or any number of nodes.
The maximum number of binary trees with n nodes is 2^n.
For example, a binary tree with 3 nodes can have up to 8 different structures.
(2 Questions)
- Q1. SQL Query to return the second highest marks in a student database
- Ans.
Use a SQL query to find the second highest marks in a student database.
Use the ORDER BY clause to sort the marks in descending order
Use the LIMIT clause to limit the result to the second row
- Q2. Program to check if two strings are anagrams
- Ans.
Program to check if two strings are anagrams
Create a function that takes in two strings as input
Remove any spaces and convert both strings to lowercase for consistency
Sort the characters in both strings and compare if they are equal to determine if they are anagrams
Example: 'listen' and 'silent' are anagrams
Skills evaluated in this interview
Selected
I applied via LinkedIn and was interviewed in Jun 2024. There were 2 interview rounds.
Sql, numpy, pandas, dictionary, pandas group by, merging
(1 Question)
- Q1. Normal questions
Data Analyst Interview Questions & Answers
Intellipaat Software Solutions
Anonymous
posted on 12 Jan 2024
(3 Questions)
- Q1. What is key features python programming
- Ans.
Key features of Python programming include simplicity, readability, versatility, and extensive libraries.
Python is known for its simple and readable syntax, making it easy to learn and understand.
It is a versatile language that can be used for various purposes such as web development, data analysis, and artificial intelligence.
Python has a vast collection of libraries and frameworks that provide ready-to-use tools for ...
- Q2. What is pandas word?
- Ans.
Pandas is a powerful data manipulation library in Python, used for data analysis and data wrangling tasks.
Pandas is a Python library that provides data structures and functions for efficient data manipulation.
It is widely used for tasks like data cleaning, transformation, and analysis.
Pandas offers powerful tools for handling structured data, such as CSV or Excel files.
It provides functionalities like filtering, sortin...
- Q3. Different between seaborn and matplotlib
- Ans.
Seaborn is a high-level interface for statistical data visualization, while Matplotlib is a low-level library for creating basic plots.
Seaborn provides a more aesthetically pleasing and informative visual representation of data compared to Matplotlib.
Seaborn has built-in themes and color palettes that make it easier to create visually appealing plots.
Matplotlib offers more flexibility and control over plot customizatio...
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Skills evaluated in this interview
I applied via Referral and was interviewed before May 2023. There were 2 interview rounds.
(1 Question)
- Q1. SQL queries , python pandas and numpy , power bi related questions
(1 Question)
- Q1. Previous experience, skills and expertise
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