Ola Electric Mobility Software Development Engineer 3 Interview Questions and Answers

Basic aptitude question around 1 hour

Q1. Sql related queston like what is indexing
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Q2. Project related question
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Q1. Weakness and strength
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Q2. Introduce yourself
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Some objective type question, One easy question on string, REsT API design in hackerank

Q1. Most of the questions was from my primary skils, Be prepared with you have mentioned in your resume.
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Q1. Package discussion
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Q1. Lets delve into self-exploration to understand our own identity and they will ask specific questions based on your resume to help with this process.
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Q1. The interviewer thoroughly inquired about the specific equipment i had used in the lab and provided a detailed overview of the tasks that would be carried out in the laboratory.
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Q1. Yet to be do
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Q1. How hard to do code
Ans. 
Coding can be challenging but rewarding with practice and experience.
• Coding requires problem-solving skills and attention to detail.

• Practice and experience can make coding easier over time.

• Collaborating with others and seeking help when needed can make coding less difficult.

• Using tools and resources effectively can also help in coding efficiently.

• Examples: debugging a complex algorithm, optimizing code for performance,...read more
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Q2. How to acheive deaign patterns
Ans. 
Design patterns can be achieved by understanding common software design problems and implementing reusable solutions.
• Understand common design problems and solutions

• Implement reusable solutions in code

• Use design patterns like Singleton, Factory, Observer, etc.

• Follow best practices and principles like SOLID
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Q3. How ti keep agile
Ans. 
To keep agile, focus on communication, adaptability, collaboration, and continuous improvement.
• Communicate regularly with team members and stakeholders to stay aligned on goals and progress.

• Be willing to adapt to changing requirements and priorities.

• Collaborate closely with team members to share knowledge and expertise.

• Continuously seek feedback and look for ways to improve processes and workflows.
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Q4. How to make redis cache
Ans. 
Redis cache can be created by setting up a Redis server and using Redis commands to store and retrieve data.
• Set up a Redis server on your machine or use a cloud-based Redis service.

• Use Redis commands like SET and GET to store and retrieve data in the cache.

• Set expiration times for keys to control cache eviction policies.

• Monitor cache performance and usage to optimize for efficiency.

• Consider using Redis data structures ...read more
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Q5. How to relive an existing offer
Ans. 
To relive an existing offer, negotiate with the employer for better terms or consider accepting a counteroffer.
• Negotiate with the employer for better salary, benefits, or work conditions

• Consider accepting a counteroffer if it meets your expectations

• Communicate openly and professionally with the employer
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Q1. Introduced about company and it's business, background discussion
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Q2. Salary, appraisal and other policy discussion
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Aptitude round consists of 7-8 sections that assess the candidates aptitude skills and time management.

For me the topic of group discussion was Cybersecurity and Computer Networking.

Q1. Explain the OOPS concepts of Java and related questions.
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Q2. Write a Program to find the duplicates in an array and store them in key-value pairs using hashmap.
Ans. 
Program to find duplicates in an array and store them in key-value pairs using hashmap.
• Create a hashmap to store the elements of the array as keys and their frequency as values.

• Iterate through the array and check if the element already exists in the hashmap. If it does, increment the frequency.

• Finally, iterate through the hashmap and print the key-value pairs where the frequency is greater than 1.
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Q1. Tell me about Yourself
Ans. 
I am a recent graduate with a degree in Computer Science and a passion for coding. I have experience with Java, Python, and web development.
• Recent graduate with a degree in Computer Science

• Passionate about coding and technology

• Proficient in Java, Python, and web development

• Experience with projects in software development
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Q2. Some scenario based questions.
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