STPL Senior Software Engineer Interview Questions and Answers

Q1. Find the duplicate items in the array.
Ans. 
Find duplicate items in array of strings.
• Iterate through array and store each item in a hash set.

• If item already exists in hash set, it is a duplicate.
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Q1. Javascript basics questions
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The aptitude test evaluates problem-solving, coding skills, and logical reasoning, offering a fair challenge to showcase technical expertise.

Q1. How do you handle conflicts in a team project?
Ans. 
I address conflicts in team projects by promoting open communication, active listening, and seeking compromise.
• Encourage open communication among team members to address conflicts early on

• Practice active listening to understand all perspectives and concerns

• Seek compromise and find common ground to resolve conflicts effectively
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Q2. What is the difference between an interface and an abstract class?
Ans. 
Interface is a contract that defines the methods a class must implement, while an abstract class can have both implemented and abstract methods.
• Interface can only have abstract methods and cannot have any implementation, while abstract class can have both abstract and implemented methods.

• A class can implement multiple interfaces but can only inherit from one abstract class.

• Interfaces are used to achieve multiple inheri...read more
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Q1. What is the difference between an abstract class and an interface in object-oriented programming?
Ans. 
Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.
• Abstract class can have method implementations, while interface cannot.

• A class can implement multiple interfaces, but can only inherit from one abstract class.

• Interfaces are used to define contracts for classes to implement, while abstract classes are used to provide a common base for subclasses.

• Example: Abstr...read more
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Q2. Abstract classes can have implemented methods; interfaces can only have declarations (before JAVA 8).
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Aptitude questions with some basic coding questions

They have given 3 coding questions and some pseudo codings

Q1. Tell about your self
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Q2. Some coding questions
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Q1. What is git, how GitHub work without git
Ans. 
Git is a version control system used for tracking changes in code. GitHub is a platform for hosting code repositories and collaborating with others.
• Git is a distributed version control system that allows multiple developers to work on the same codebase without conflicts.

• GitHub is a web-based platform that provides hosting for Git repositories, along with additional features like issue tracking, pull requests, and proje...read more
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Q2. What is salting, hashing, rainbow table
Ans. 
Salting, hashing, and rainbow tables are techniques used in cryptography to secure passwords.
• Salting involves adding a random string of characters to a password before hashing to prevent attacks like rainbow tables.

• Hashing is the process of converting a password into a fixed-length string of characters using a cryptographic hash function.

• Rainbow tables are precomputed tables used to crack hashed passwords by matching a
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Q1. What is jdk, string related questions, basic java oops questions?
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In this round there are two codingquestion firs was pythagora triplet,and second was sort array 0's 1's,2's.and to solve this program time limit was 1 hour.

Q1. OOPs Related Basic question
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Q2. Exception Handling
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Q3. Multithreading related basic question
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- Basic Data Structure Programs
- Conceptual Programs in JavaScript, Python or any other language

Q1. What motivates you?
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Q2. Can you provide an example of a time you faced a conflict while working on a team? How did you handle it?
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Q3. Tell me about a time you had to learn a new skill or technology to succeed in a role.
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Q4. What steps do you take to ensure accuracy in your work?
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Q5. Tell me about a time you failed. How did you handle the situation, and what did you learn from it?
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