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Nationkart Interview Questions and Answers
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Anonymous
I applied via Referral and was interviewed before Jun 2020. There was 1 interview round.
Interview Questionnaire
3 Questions
- Q1. Process is throwing Out of Memory Error , describe the steps you will take to debug and then interviewer went down in Memory Management concepts and garbage collection algo's of JVM in great detail.
- Ans.
To debug Out of Memory Error, analyze memory usage and garbage collection algorithm of JVM.
Analyze heap dump to identify memory leaks
Check if JVM is running out of heap space
Analyze garbage collection logs to identify any issues
Tune JVM parameters to optimize memory usage
Consider using a profiler to identify memory-intensive code
Check for any large objects or arrays that may be causing the issue
- Q2. Design automated Parking Lot.
- Ans.
Automated parking lot design with efficient space utilization and user-friendly interface.
Use sensors to detect available parking spots
Implement a central computer system to manage parking allocation
Incorporate user-friendly interface for easy navigation and payment
Maximize space utilization with multi-level parking and compact car storage
Ensure safety measures are in place for pedestrians and vehicles
- Q3. Design Something similar as auto correct/suggestions functionality of Google search.
- Ans.
Design an auto-suggestion feature for a search engine.
Implement a search algorithm that suggests relevant keywords based on user input.
Use machine learning to improve the accuracy of suggestions over time.
Allow users to easily select and add suggested keywords to their search query.
Interview Preparation Tips
First define the problem statement and write down all requirements on paper.
Writing down the requirements and clarify the assumptions are two most important task in any system design question.
Remember nobody expects you to design fully functional auto-correct functionality, or Zomato app, or parking lot in one hour.
It took many months for any development team to get these kind of design right and sometime applications have to be redesign multiple times in reality.
In interview what people want to see is that how well you think,are you able to connect the dots in your design and can you come up with high level prototype which is generic and scalable.
I have seen people got lost in little nuances/edge scenarios which doesn't matter in larger scheme of things, so
1. Focus on big picture first.
2. Get your high level entity design, Schema Design right.
3. Then connect the dots and focus of if we can scale the system or enhance the system if required.
4. Try to accommodate any edge case scenario.
Generally, if you get first three steps rights , in one hour or so that's enough for you to crack the round.
Skills evaluated in this interview
I applied via Naukri.com and was interviewed before Apr 2020. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. 1. Explain SCD Type 2 Implementation in Informatica
- Ans.
SCD Type 2 is a technique used to track historical changes in data over time in a data warehouse.
SCD Type 2 maintains a separate row for each change in data, with a start and end date.
It requires a surrogate key to uniquely identify each row.
Informatica provides a built-in SCD Type 2 transformation to implement this technique.
Example: tracking changes in customer addresses over time.
Interview Preparation Tips
Skills evaluated in this interview
I applied via Referral and was interviewed in Nov 2019. There were 3 interview rounds.
Interview Questionnaire
4 Questions
- Q1. Round 1: Basic python question, generators, decorators, args, kwargs, list comprehensions, oops, MRO, yield function, sorting, string operation, tuple vs list, set vs dictionary.
- Q2. Round 2: Data Structures, Set implementations, list, reversal of a linked list, find power set.
- Q3. Round 3: Project round, scope of improvements in existing project structure, performance testing, Scaling(horizontal vs vertical).
- Q4. HR Round
Interview Preparation Tips
I applied via Campus Placement and was interviewed before Jan 2021. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. My Strong area , technical questions about my specialisation, some accounting questions
Interview Preparation Tips
I applied via Campus Placement and was interviewed before Jan 2021. There were 2 interview rounds.
(1 Question)
- Q1. Most of the questions were centred around Derivatives and Fixed Income Securities
Interview Preparation Tips
I applied via Referral and was interviewed before Sep 2020. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Questions related to Python, my former organisation, why do you want to shift, questions related to different types of risk
Interview Preparation Tips
Communication must be good
Answer questions if you can, if you don’t know just accept you don’t know
I applied via Campus Placement and was interviewed before Nov 2021. There were 3 interview rounds.
Moderate level aptitude with basics
Moderate level data structure questions
Interview Preparation Tips
I applied via Naukri.com and was interviewed in Jun 2020. There were 4 interview rounds.
Interview Questionnaire
2 Questions
- Q1. Why not to use unique ideas about customer make happy..??
- Ans.
Using unique ideas about customer satisfaction is important for business success.
Unique ideas can set a business apart from competitors
Personalized experiences can create loyal customers
Examples include surprise gifts, handwritten notes, and customized recommendations
However, it's important to balance unique ideas with practicality and cost-effectiveness
- Q2. Help desk is most important thing to convince customer
Interview Preparation Tips
I applied via Referral and was interviewed before Nov 2020. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. Do you have any experience?
Interview Preparation Tips
Ask some questions about job role.
I applied via Walk-in and was interviewed in Aug 2019. There were 3 interview rounds.
Interview Questionnaire
5 Questions
- Q1. Why I want to switch?
- Q2. About your self.
- Q3. Explain corporate actions and it’s types with examples
- Ans.
Corporate actions are events initiated by a company that can affect its stock price and shareholders.
Types of corporate actions include dividends, stock splits, mergers and acquisitions, spin-offs, and rights issues.
Dividends are payments made to shareholders from a company's profits.
Stock splits increase the number of shares outstanding while decreasing the price per share.
Mergers and acquisitions involve the combinat...
- Q4. What are bonds and it’s types
- Q5. Types of swift and how it read it. Like its fields.
- Ans.
Swift is a messaging system used for financial transactions. It has different types and fields for message processing.
Swift messages are categorized into 5 types - MT0xx, MT1xx, MT2xx, MT3xx, and MT9xx
Each type has its own set of fields for message processing
For example, MT103 is used for Single Customer Credit Transfer and has fields like Sender's Reference, Receiver's Reference, Amount, Currency, etc.
Interview Preparation Tips
Describe your current job well.
Always read about the job your applying.
Be confident and honest
Skills evaluated in this interview
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