Amdocs Software Developer Interview Questions, Process, and Tips

Q1. Find duplicate Reactjs question Nodejs Questions
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Q2. How redux work store, reducer and action
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Redux is a state management library for JavaScript applications.
• Redux uses a single source of truth called the store to manage the application state.

• Reducers are pure functions that specify how the state should change based on the actions dispatched.

• Actions are plain JavaScript objects that describe the type of change to be made to the state.

• When an action is dispatched, the store passes the current state and the actio...read more
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Q3. Event loop in javascript
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The event loop is a mechanism in JavaScript that allows for asynchronous execution of code.
• The event loop is responsible for handling and executing tasks in JavaScript.

• It ensures that tasks are executed in a non-blocking manner.

• Tasks are added to different queues based on their type and priority.

• The event loop continuously checks the queues and executes tasks in a specific order.

• Examples of tasks include setTimeout cal
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Q1. What are the key concepts of Object-Oriented Programming (OOP)?
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Key concepts of OOP include encapsulation, inheritance, polymorphism, and abstraction.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (object).

• Inheritance: Allowing a class to inherit properties and behavior from another class.

• Polymorphism: Objects of different classes can be treated as objects of a common superclass.

• Abstraction: Hiding complex implementation details and showing onl
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Q2. What is the internal working mechanism of a HashMap?
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HashMap is a data structure that stores key-value pairs and uses hashing to quickly retrieve values based on keys.
• HashMap internally uses an array of linked lists to store key-value pairs.

• When a key-value pair is added, the key is hashed to determine the index in the array where the pair will be stored.

• If multiple keys hash to the same index (collision), a linked list is used to store these pairs.

• To retrieve a value, t...read more
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Easy to medium questions

Q1. Linked list insertion deletion
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Q2. Reversal of nodes in linked list
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Reversing the nodes in a linked list involves changing the direction of pointers to go from the end to the beginning.
• Iterate through the linked list and reverse the pointers to point to the previous node instead of the next node.

• Use three pointers - prev, current, and next - to keep track of the nodes while reversing the list.

• Update the head of the linked list to point to the last node after reversing.
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General questions about maths, problem solving, puzzles

Q1. What is inheritance
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Q2. What is interfaces and demonstrate by example
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Q1. Tell me something about yourself
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Q2. Why should we hire you
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Q1. What is SDLC AND TYPES?
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SDLC stands for Software Development Life Cycle. It is a process used by software developers to design, develop, and test software.
• SDLC is a systematic process for building software applications.

• There are different types of SDLC models such as Waterfall, Agile, Iterative, Spiral, etc.

• Each type of SDLC model has its own set of advantages and disadvantages.

• SDLC involves phases like planning, analysis, design, implementat...read more
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Q2. What is bug and unit testing?
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A bug is an error, flaw, failure, or fault in a computer program or system. Unit testing is a software testing method where individual units or components of a software are tested in isolation.
• Bug is an error, flaw, failure, or fault in a computer program or system.

• Unit testing is a software testing method where individual units or components of a software are tested in isolation.

• Bug testing helps identify and fix issu...read more
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