Raphe mPhibr Software Engineer Interview Questions and Answers

Q1. Use of volatile const ?
Ans. 
Volatile const is used to indicate that a variable's value may change outside the program's control.
• Volatile const is used for hardware registers that can change their value without the program's knowledge.

• It is also used for variables that are accessed by multiple threads.

• Example: volatile const int* const ptr = (int*)0x1234; // pointer to a hardware register
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What is ll dsing a ll and all stuff

Q1. Time complexity in hashmap
Ans. 
Time complexity of hashmap operations is O(1) on average, but can be O(n) in worst case scenarios.
• HashMap operations like get, put, and remove have constant time complexity O(1) on average due to hashing.

• In worst case scenarios, when there are many collisions, time complexity can degrade to O(n) where n is the number of elements in the hashmap.

• Hashing function quality and load factor affect the time complexity of hashm
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Q2. Why this company what are your ambitions
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Q1. What is collection and its types
Ans. 
A collection is a group of related objects. There are various types of collections in programming.
• Collections are used to store and manipulate groups of related objects

• Types of collections include arrays, lists, sets, and maps

• Arrays are fixed in size and can only store objects of the same type

• Lists are dynamic in size and can store objects of different types

• Sets are used to store unique objects and do not allow duplica
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Q2. Spring boot implementation
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I am read to test for round number one.

I also ready for this and this is so effective for me.

Create an API using Notepad to check if a string is a palindrome or not.

Q1. Solid principal
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C,C++,SQL,Java,Python

Q1. What is your family background?
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Q2. What are your salary expectations?
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Q3. Why should we hire you?
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Q4. Tell me about yourself.
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Q1. What is oops and describe
Ans. 
OOPs stands for Object-Oriented Programming. It is a programming paradigm based on the concept of objects, which can contain data and code.
• OOPs focuses on creating objects that interact with each other to solve a problem

• It involves concepts like classes, objects, inheritance, polymorphism, and encapsulation

• Example: In a banking application, a 'BankAccount' class can have attributes like account number and balance, and
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Q2. Osi model on networking
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The OSI model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven layers.
• The OSI model stands for Open Systems Interconnection model

• It consists of seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application

• Each layer has specific functions and communicates with the adjacent layers
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Easy MCQ aptitude questions

Q1. Asked about Android , Chipsets etc
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Q1. Why do u want to join the company
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