GREEN CIRCLE Interview Questions and Answers

Q1. Interview was taken in malad on interface 7 building The relationship officer Vaibhav Panchal . He assigned Interviewer the way he was talking he was not able to speak in english half of the question i was...read more
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Q2. His english was poor How you will get the customer count who speak in english? he didn't gave me which table to fetch from ? * question changed get the customer from one table and count from the other ...read more
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Q1. Explain your last project and your role in this project
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Q2. Overall working experience with other companies
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Q3. Why choose kafka over MQ ? what challenges you faced during kafka implementation ?
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Q4. Monolith to microservice migration journey ? what all decisions needs to be taken and how the entire migration took place.
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Q5. If worked for RestAPI ? what is the use of swagger ? what is the content of Swagger documentation ?
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Q6. Only this was asked to me , and rejected
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Here’s a simple framework to approach a case study effectively:


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Case Study Framework

1. Understand the Problem

Read the case thoroughly and identify the key issue.

Ask clarifying questions if needed (if in a live setting).

Summarize the problem in your own words.



2. Analyze the Situation

SWOT Analysis (Strengths, Weaknesses, Opportunities, Threats)

Identify relevant stakeholders.

Gather data or key insights from the case text.



3. Identify Alternatives

Brainstorm possible solutions to the problem.

Consider multiple approaches (e.g., short-term vs. long-term solutions).



4. Evaluate the Alternatives

Weigh the pros and cons of each solution.

Assess feasibility, costs,

Q1. What are the common performance issues that can occur in a system?
Ans. 
Common performance issues in a system include slow response times, high resource usage, bottlenecks, and crashes.
• Slow response times can be caused by inefficient code, network latency, or overloaded servers.

• High resource usage can lead to system slowdowns and crashes, often caused by memory leaks or inefficient algorithms.

• Bottlenecks occur when a component of the system becomes a limiting factor, such as a database ser...read more
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Q2. What is your experience with software bug fixing?
Ans. 
I have experience in identifying and resolving software bugs through thorough testing and collaboration with developers.
• Identifying bugs by reproducing issues reported by users

• Collaborating with developers to understand root cause of bugs

• Testing bug fixes to ensure they are effective

• Utilizing bug tracking tools like Jira or Bugzilla

• Experience with regression testing to prevent reoccurrence of bugs
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Shortcut Tips for Coding Tests: 1. Master the Basics: Familiarize yourself with arrays, strings, loops, and conditional statements. 2. Learn Patterns: Concentrate on sliding window, two-pointer techniques, recursion, and divide-and-conquer methods. 3. Use Standard Algorithms: Study breadth-first search (BFS), depth-first search (DFS), sorting algorithms, and dynamic programming principles. 4. Understand Data Structures: Practice with stacks, queues, linked lists, and trees. 5. Practice Edge Cases: Consider scenarios involving empty inputs, duplicates, and large datasets. 6. Write Pseudocode: Outline your plan before starting to code. 7. Optimize Early: Always strive for efficiency in your solutions.

Q1. Filters in Tableau
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Q2. Blending and joins in Tableau
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Q3. LOD expressions in Tableau
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Q4. Different types of Joins in SQL, difference between TRUNCATE and DELETE
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Q1. About my technical experience
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Q2. What will you do if you get the offer from multiple companies
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Q1. Introduction, be prepared to have knowledge on your resume
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Q2. Mathematical questions like percentage
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Q3. Critical thinking. They asked a question with a given situation what you'll do .
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Q4. The past 4 days been climate be stroming . And current was cut off due to rain and flood , you have a important assignment to finish, what you'll do
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During the coding test, I was asked to write a program to check the frequency of characters in a string.

Q1. What is Java , what are the four pillars of java
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Q2. Related to collection framework
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Q3. What is recursion, write a code for it
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Q4. Why we don't use pointers in java
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Q5. What are the difference between array and arraylist
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