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Tyche Media Interview Questions and Answers

Updated 22 Nov 2024

Q1. move zeros to the end of the array

Ans.

Move all zeros in an array of strings to the end.

  • Iterate through the array and move all zeros to the end by swapping with non-zero elements.

  • Maintain a pointer to keep track of the position to swap with zeros.

  • Example: Input: ['a', 'b', 'c', '0', 'd', '0'], Output: ['a', 'b', 'c', 'd', '0', '0']

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Q2. Find the minimum element in a stack in O(1) complexity

Ans.

To find the minimum element in a stack in O(1) complexity, we can use an auxiliary stack.

  • Create an auxiliary stack to keep track of the minimum element.

  • Push the first element of the main stack onto the auxiliary stack.

  • For each subsequent element, compare it with the top element of the auxiliary stack.

  • If it is smaller, push it onto the auxiliary stack.

  • To get the minimum element, simply return the top element of the auxiliary stack.

  • When popping elements from the main stack, als...read more

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Q3. experience with Scala

Ans.

I have 3 years of experience working with Scala in developing backend applications.

  • Developed RESTful APIs using Scala Play framework

  • Utilized Akka for building highly concurrent and distributed systems

  • Worked on data processing tasks using Apache Spark with Scala

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Q4. experience with airflow

Ans.

Airflow is an open-source platform to programmatically author, schedule, and monitor workflows.

  • Airflow is used for orchestrating complex workflows in data pipelines.

  • It allows users to define workflows as Directed Acyclic Graphs (DAGs).

  • Airflow provides a web-based UI for monitoring and managing workflows.

  • It supports various integrations with different systems and tools.

  • Example: Using Airflow to schedule ETL jobs for data processing.

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Q5. experience with Java

Ans.

Extensive experience with Java programming language

  • Proficient in Java programming for over 5 years

  • Developed multiple applications using Java, including web applications and desktop applications

  • Strong understanding of object-oriented programming concepts in Java

  • Experience with Java frameworks such as Spring and Hibernate

  • Familiar with Java development tools like Eclipse and IntelliJ IDEA

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Q6. where to look for C-level details

Ans.

Look for C-level details in company annual reports, press releases, investor presentations, and industry publications.

  • Company annual reports

  • Press releases

  • Investor presentations

  • Industry publications

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Q7. Public vs private company

Ans.

Public companies are traded on stock exchanges and have more regulatory requirements, while private companies are not traded publicly and have more flexibility.

  • Public companies have more regulatory requirements due to SEC regulations

  • Private companies have more flexibility in decision-making and operations

  • Public companies have more transparency as they are required to disclose financial information to the public

  • Private companies have more privacy as they are not required to di...read more

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Q8. Data analytics using excel

Ans.

Data analytics using excel involves analyzing and interpreting data using various tools and functions in Excel.

  • Use functions like VLOOKUP, SUMIF, and PivotTables to analyze data

  • Create charts and graphs to visualize data trends

  • Use conditional formatting to highlight important data points

  • Perform statistical analysis using Excel's data analysis toolpack

  • Clean and organize data using filters and sorting functions

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Q9. Longest island problem

Ans.

Find the length of the longest island in a 2D grid.

  • Iterate through the grid and perform a depth-first search (DFS) to find each island.

  • Keep track of the length of each island and return the maximum length found.

  • Consider the grid as a graph where each cell is a node and adjacent cells are connected edges.

  • Use a visited array to mark cells that have already been visited during the DFS.

  • Handle edge cases such as empty grid, grid with no islands, or grid with all water cells.

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