Gibraltar Technologies Software Developer Interview Questions and Answers

It was a coding round interview along with interviewer via Virtual mode. I was given 2 coding questions on HackerRank for the interview:

1. one was an easy problem on counting minimum replacements.
2. "pat is an ordinary kid who works hard to be a great runner...." this was a challenging problem (which I managed to solve).
3. I was asked some basic Python questions, as the role was for a Python Developer.

Q1. LLD for Parking Lot
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Q2. Which database are you going to use for Parking lot and Why ?
Ans. 
I would use a relational database like MySQL for the Parking lot as it provides structured data storage and supports complex queries.
• Relational databases like MySQL offer structured data storage for parking lot information

• Supports complex queries for managing parking lot data efficiently

• Ability to handle large amounts of data and transactions

• Provides data integrity and security features

• Can easily integrate with other s
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Q3. Questions related to OOPs
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Q4. Questions related to Multi Threading
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Q5. Questions related to Projects
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Q1. I hate this since i was informed that this round was a technical.
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Q2. Usual Mangerial questions, Project Related, etc
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Arrays and strings - 90 mins

Create Modules, railway reservation system - 60 mins

Q1. Difference between hashmap and hasptable
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Q2. Why typescript over javascript
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Q3. Find the percentage of increace in the quantity of item after making it price 20% extra
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Q4. What is normalization
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Q5. Date and time api available
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30min duration simple questions

Basic array 2 coding questions

Q1. Introduce yorself
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Q2. Explain about final year project
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Q3. Github link for project
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Q4. What is oops in java
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Q5. What is polymorphism explain with examples
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Aptitude, core concepts and a code

Q1. What is the one thing you learnt from college club?
Ans. 
I learned the importance of teamwork and collaboration from my college club.
• Developed strong communication skills by working with diverse group of individuals

• Learned how to delegate tasks effectively to achieve common goals

• Gained experience in problem-solving and conflict resolution through group projects
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Q2. What is the one thing you want to expereince?
Ans. 
I want to experience living in a different country and immersing myself in a new culture.
• Traveling to a foreign country and learning about their customs and traditions

• Trying new foods and experiencing different ways of life

• Making friends with locals and exploring the local attractions
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Q1. Difference between relational and non relational dbms
Ans. 
Relational DBMS stores data in tables with predefined relationships, while non-relational DBMS stores data in flexible, schema-less formats.
• Relational DBMS uses structured query language (SQL) for querying data

• Non-relational DBMS can store data in various formats like key-value pairs, document-based, graph databases

• Relational DBMS ensures data integrity through normalization and constraints

• Non-relational DBMS offers be...read more
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Q2. Difference betweeen class,abstract class,interface in python
Ans. 
Class is a blueprint for creating objects, abstract class cannot be instantiated and can have abstract methods, interface is a contract for classes to implement certain methods.
• Class is a blueprint for creating objects with attributes and methods.

• Abstract class cannot be instantiated and can have abstract methods that must be implemented by subclasses.

• Interface is a contract for classes to implement certain methods, bu
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Q3. Project related questions were asked
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Q1. Why Amazon Software Developer?
Ans. 
Amazon offers challenging projects, innovative technologies, and a collaborative work environment.
• Opportunity to work on cutting-edge projects like Amazon Web Services (AWS) or Alexa

• Access to vast resources and tools for development

• Collaborative work culture that encourages learning and growth

• Opportunity to impact millions of customers worldwide

• Competitive compensation and benefits package
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Q2. Why do you want to work at amazon ?
Ans. 
I want to work at Amazon because of their innovative culture, vast resources, and opportunities for growth.
• Amazon is known for its innovative culture and cutting-edge technology.

• They have vast resources and a global reach, providing opportunities to work on impactful projects.

• Amazon offers great career growth and development opportunities for software developers.

• I admire Amazon's customer-centric approach and focus on
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Q3. What are your strengths and weakness?
Ans. 
My strengths include problem-solving skills and attention to detail. My weakness is sometimes being too critical of my own work.
• Strengths: problem-solving skills

• Strengths: attention to detail

• Weakness: being too critical of my own work
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Q4. How would you solve?
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I would solve the problem by breaking it down into smaller tasks, analyzing requirements, designing a solution, coding, testing, and debugging.
• Analyze requirements thoroughly before starting the development process

• Break down the problem into smaller tasks to make it more manageable

• Design a solution architecture that meets the requirements and is scalable

• Code the solution using best practices and coding standards

• Test th...read more
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Q5. What are the short term and long-term for teame or organisation?
Ans. 
Short term goals focus on immediate tasks and objectives, while long-term goals involve strategic planning and growth.
• Short term goals may include completing a specific project, improving team communication, or implementing a new software feature.

• Long-term goals could involve expanding the team, increasing market share, or developing new products or services.

• Short term goals help keep the team focused and motivated, wh...read more
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Q1. Features of new Java versions?
Ans. 
New Java versions introduce various features and improvements for developers.
• Java 8 introduced lambda expressions and the Stream API for functional programming.

• Java 9 added the module system to improve code organization and security.

• Java 10 included local variable type inference for cleaner code.

• Java 11 introduced the HttpClient API for easier HTTP communication.

• Java 12 added switch expressions for more concise code.

• Ja...read more
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Q2. Hash map, hashing and internal working of collision handling
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Q1. Lru cache and its implementation in java
Ans. 
LRU cache is a data structure that stores the most recently used items, discarding the least recently used items when full.
• Use a LinkedHashMap to implement LRU cache in Java

• Override removeEldestEntry method to limit the size of the cache

• Accessing an element updates its position in the cache
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Q2. In depth discussion on basic of java
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Q1. Why sap and what if we offer less compensation
Ans. 
I chose SAP because of its industry-leading reputation and comprehensive suite of solutions. If offered less compensation, I would consider the overall growth opportunities and work-life balance.
• SAP is a widely used enterprise software with a strong market presence

• SAP offers a wide range of solutions for various industries, providing valuable experience and skill development

• Consider the overall growth opportunities, wo...read more
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Q2. About current project and ways you would make it better
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Q1. Implement stack using other data structures
Ans. 
Implement stack using array or linked list
• Use an array or linked list to store elements in the stack

• Implement push() and pop() functions to add and remove elements from the stack

• Maintain a pointer to keep track of the top element in the stack
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Q2. Current project and what technology you are using
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Q1. What motivates you to join sap
Ans. 
I am motivated to join SAP because of their reputation for innovation, global impact, and opportunities for growth.
• SAP is a global leader in enterprise software solutions, offering cutting-edge technology and opportunities to work on impactful projects.

• I am excited about the chance to work with a diverse team of talented individuals and learn from industry experts.

• SAP's commitment to innovation and continuous learning ...read more
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Q2. What is your top priority while choosing new job
Ans. 
My top priority while choosing a new job is growth opportunities and a positive work culture.
• Opportunities for career advancement and skill development

• Positive work environment and company culture

• Alignment with personal values and goals

• Competitive compensation and benefits

• Work-life balance
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LeetCode , hard questions on dynamic programming, graphs, and more.

DSA, Cn, os, DBMS, ML

Q1. Is relocation a possibility for this position?
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Q2. Senior role is there
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MCQ test consisting of 70 mcqs in 75 minutes from aptitude english and cs fundamentals. If cleared next paper 2 coding qs medium level

Q1. Two sum leetcode problem
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Q2. What problems you faced in your project
Ans. 
I faced challenges with integrating third-party APIs and debugging complex logic.
• Difficulty in understanding and implementing third-party APIs

• Issues with data synchronization between different systems

• Troubleshooting complex logic errors

• Managing dependencies and version conflicts

• Time constraints affecting problem-solving
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