Smart IMS fresher Interview Questions and Answers

Leet code medium level question

Q1. About Java Streams
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Q2. Restful API coding completion based on given file
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Guide to completing a RESTful API coding task with essential pointers and examples.
• Understand REST principles: Use HTTP methods (GET, POST, PUT, DELETE) appropriately.

• Define clear endpoints: Example - /api/users for user-related operations.

• Implement status codes: Use 200 for success, 404 for not found, 500 for server errors.

• Use JSON for data interchange: Ensure requests and responses are in JSON format.

• Consider authent...read more
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Q1. To check your attitude
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Q2. Given detailed about company and what project you are going to work on?
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Q1. Hashmap working
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A hashmap is a data structure that stores key-value pairs for efficient data retrieval using a hash function.
• Uses a hash function to compute an index for storing values.

• Handles collisions using methods like chaining or open addressing.

• Example: Inserting a key-value pair (key: 'apple', value: 1) involves hashing 'apple' to find an index.

• Retrieving a value involves hashing the key again to find the corresponding index.
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Q2. Multithreading cases
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Q3. Scenario specific on how to handle multiple events on a single variable to have accurate result
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Managing multiple events on a single variable requires careful synchronization to ensure accurate results.
• Use locks or mutexes to prevent race conditions when accessing the variable.

• Implement event debouncing to limit the frequency of updates, ensuring only the final event is processed.

• Utilize a queue to handle events sequentially, processing them one at a time to maintain accuracy.

• Consider using atomic operations for ...read more
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Q4. Database indexing
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Q5. Architecture level
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Coding test are just basic Array and linkedList question

Q1. Explain 4 pillar of oops
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Q2. Internal working of Hashmap
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Q3. Crud operation implementation
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Q1. Why are you chaning the organisation?
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50 Questions in 1 hour

Pattern and basic programming questions

Q1. Basic Java, SQL, and project-related questions
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Simple String or list releted questions for Arranging a string some conditions wise

Q1. Count number after decimal value What is decorator What is abstraction in python
Ans. 
To count number after decimal value in Python, use string manipulation or math module.
• Use string manipulation to count number of digits after decimal point

• Use math module to round off the number and then subtract the original number to get the digits after decimal point

• Example: num = 3.14159, str_num = str(num), decimal_index = str_num.index('.') + 1, digits_after_decimal = len(str_num) - decimal_index
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Q1. How can we achieve authentication and manage data effectively?
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Effective authentication and data management can be achieved through secure protocols, access controls, and regular audits.
• Implement multi-factor authentication (MFA) to enhance security, e.g., using SMS codes or authenticator apps.

• Utilize role-based access control (RBAC) to restrict data access based on user roles, ensuring only authorized personnel can access sensitive information.

• Encrypt data both at rest and in tra...read more
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Q2. Explain lifecycle?
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The lifecycle refers to the series of stages an entity goes through from inception to completion.
• 1. Birth/Initiation: The beginning of a process or entity, e.g., a product launch.

• 2. Growth/Development: The phase where the entity expands, e.g., a startup gaining customers.

• 3. Maturity: The stage where growth stabilizes, e.g., a well-established brand.

• 4. Decline: The phase where the entity starts to lose relevance, e.g., ...read more
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Q1. What is singleton design pattern
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Singleton design pattern restricts the instantiation of a class to a single instance and provides global access to it.
• Used when only one instance of a class is required throughout the application

• Provides a global point of access to the instance

• Implemented using a private constructor, static method, and static variable

• Example: Logger class, Database connection class
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Q2. C# LINQ queries for group and sum data from data table
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C# LINQ queries for group and sum data from data table
• Use GroupBy() method to group data based on a specific column

• Use Sum() method to calculate the sum of a column

• Use Select() method to select the required columns
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Q3. Solid design principles
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Solid design principles are a set of guidelines for writing maintainable and scalable code.
• Single Responsibility Principle (SRP) - each class should have only one responsibility

• Open/Closed Principle (OCP) - classes should be open for extension but closed for modification

• Liskov Substitution Principle (LSP) - subclasses should be able to replace their parent classes without affecting the program's correctness

• Interface Se...read more
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Q4. OOPS concepts ,like association and all
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Basic aptitude test and was unproctored

Q1. It was a online technical round
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