Binary Fountain Interview Questions, Process, and Tips

Q1. Given a string with parenthesis, return if the parenthesis are balanced or not.
Ans. 
Check if a string with parenthesis is balanced
• Use a stack to keep track of opening parenthesis

• Iterate through the string and push opening parenthesis onto the stack

• When a closing parenthesis is encountered, pop from the stack and check if it matches the closing parenthesis

• If stack is empty at the end and all parenthesis are matched, return true
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Q1. Design an login/register authentication system.
Ans. 
Design a secure login/register authentication system.
• Use strong encryption algorithms like bcrypt for storing passwords.

• Implement multi-factor authentication for added security.

• Utilize HTTPS protocol to ensure data transmission is secure.

• Implement rate limiting to prevent brute force attacks.

• Use CAPTCHA to prevent automated account creation.

• Store user credentials in a secure database with proper access controls.
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Q1. Culture fit questions
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Normal Group discussion

Q1. Cosing, project management etc
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Interviewer himself did not knew python or any other data analysis language

Excel, questions that were open ended

Q1. How will you work under female manager
Ans. 
I will work under a female manager just like I would under any other manager - with professionalism, respect, and open communication.
• I will communicate openly and honestly with my female manager, just as I would with any other manager.

• I will respect her authority and expertise, and follow her guidance and instructions.

• I will collaborate effectively with my female manager and the rest of the team to achieve our goals.

• I ...read more
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Q2. Are you willing to work for lower salary than previous
Ans. 
I am open to discussing salary based on the overall compensation package and opportunities for growth.
• I am open to discussing salary based on the overall compensation package and opportunities for growth.

• I would like to understand the reasons for the lower salary offer and how it aligns with the company's budget and market standards.

• I am willing to negotiate other benefits such as flexible work hours, additional vacati...read more
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Q3. Will your accomodation or salary structure needed to be validated in case you got married
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Q4. Will you work till 1 am in the morning as bjp politicians client can ask anything anytime
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Q1. Why ai and machine learning is only marketing term and not a real technology
Ans. 
AI and machine learning are real technologies with practical applications in various industries.
• AI and machine learning have been successfully used in various industries such as healthcare, finance, and transportation to improve efficiency and accuracy.

• Companies like Google, Amazon, and Facebook heavily rely on AI and machine learning algorithms to enhance their products and services.

• AI and machine learning technologie...read more
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Q2. Why python is an awful language and would you be willing to work as a back end developer using spring or Node
Ans. 
Python is not an awful language, but I am open to working with other technologies like Spring or Node.
• Python is a versatile and widely-used language in data analysis and machine learning.

• It has a large community and extensive libraries like Pandas and NumPy.

• Spring and Node are also popular choices for backend development, offering different strengths and capabilities.

• I am open to learning and working with new technolog
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Q1. Will you work under bond of 2 yrs ?
Ans. 
I am open to discussing the terms of the bond and considering the overall opportunity.
• I am willing to consider a bond if the terms are reasonable and the opportunity aligns with my career goals.

• I would like to discuss the details of the bond such as its purpose, consequences of breaking it, and any potential benefits for me.

• I may negotiate the duration of the bond or explore alternative options to ensure a mutually ben...read more
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Q2. We will give 30% of your salary as Variable pay after completion of 1 yr but we will decide when to give it to you. Would you still be willing to work for us as working for our company is a prestigious opp...read more
Ans. 
I would consider the offer based on the overall compensation package and career growth opportunities.
• I would need more information on the overall compensation package to make a decision.

• I would also consider the potential career growth opportunities and learning experiences at the company.

• It would be important to understand the criteria and timing for receiving the variable pay.

• I would evaluate the offer based on my lo...read more
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Basic Programming Questions

Q1. Java and programming questions.
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Q1. I have given the interview few months back, so I didn't remeber
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Q1. Questions related to Java 8, design patterns, Microservice architecture, databases, Spring boot.
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Q1. Coding questions on search algorithms, design a board game, questions on rest api, ci/cd and aws.
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Q1. General questions about overall experience and career. Knowledge of cloud technologies etc.
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Q1. Salary discussion
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Q1. Tell me about youself?
Ans. 
I am a software engineer with experience in developing and maintaining software applications.
• Proficient in programming languages such as Java, C++, and Python

• Skilled in software development methodologies like Agile and Scrum

• Experience with database management systems like MySQL and MongoDB

• Familiarity with front-end technologies such as HTML, CSS, and JavaScript

• Strong problem-solving and analytical skills

• Effective commu
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Q2. Your strength, your weekness?
Ans. 
My strength is problem-solving and my weakness is public speaking.
• Strength: Problem-solving

• Weakness: Public speaking
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Q1. What are the pillars of oops?
Ans. 
The pillars of OOP are encapsulation, inheritance, and polymorphism.
• Encapsulation: bundling of data and methods into a single unit

• Inheritance: ability to create new classes from existing ones

• Polymorphism: ability to use a single interface for multiple types
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Q2. Web api Security mechanism
Ans. 
Web API security mechanisms protect against unauthorized access and ensure data integrity.
• Authentication: Verify the identity of the user or client accessing the API.

• Authorization: Determine what actions the authenticated user or client is allowed to perform.

• Encryption: Securely transmit data over the network using encryption algorithms.

• Input validation: Validate and sanitize user input to prevent common security vulne...read more
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Q3. Deadlock in Sql
Ans. 
Deadlock in SQL occurs when two or more transactions permanently wait for each other to release resources.
• Deadlock happens when two or more transactions acquire locks on resources and wait for each other indefinitely.

• It can occur due to poor transaction scheduling, lock contention, or incorrect use of transactions.

• To prevent deadlock, use proper transaction isolation levels, minimize lock contention, and ensure transac...read more
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