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Inter-process communication (IPC) and mutexes are essential for managing concurrent processes in Linux systems.
IPC allows processes to communicate and synchronize their actions. Common IPC methods include pipes, message queues, and shared memory.
Mutex (mutual exclusion) is a synchronization primitive that prevents multiple threads from accessing shared resources simultaneously.
Example of IPC: Using a named pipe (F...
CSS is a styling language used to design the layout and appearance of web pages. Client side refers to actions performed on the user's device, while server side refers to actions performed on the server.
CSS stands for Cascading Style Sheets and is used to control the visual presentation of web pages.
Client side refers to actions performed on the user's device, such as running scripts in the browser.
Server side ref...
JavaScript is a programming language commonly used for web development. It is used in frameworks like React and Angular.
JavaScript is a high-level, interpreted programming language.
It is commonly used for client-side web development.
JavaScript can be used in frameworks like React, Angular, and Vue.
It allows for dynamic content on websites and interactive user experiences.
HTML is a markup language used for creating web pages. Block and inline elements are two types of HTML elements with different display behaviors.
HTML stands for HyperText Markup Language and is used to create the structure of web pages.
Block elements take up the full width available and start on a new line, while inline elements only take up as much width as necessary and do not start on a new line.
Examples of blo...
Java fundamentals include object-oriented programming, platform independence, and strong typing.
Object-oriented programming: Java supports classes, objects, inheritance, and polymorphism.
Platform independence: Java code can run on any platform with the help of JVM.
Strong typing: Java enforces strict data type checking to prevent errors.
Scheduling algorithm is a method used to determine the order of tasks to be executed on a computer system.
Scheduling algorithms help in optimizing resource utilization and improving system performance.
Examples of scheduling algorithms include First Come First Serve, Shortest Job Next, Round Robin, etc.
You are given a set of 'N' stones, each with a specific weight and color. The goal is to fill a knapsack with exactly 'M' stones, choosing one stone of each color, so that the tot...
The goal is to fill a knapsack with exactly 'M' stones, choosing one stone of each color, minimizing the unused capacity.
Use dynamic programming to solve this problem efficiently.
Create a 2D array to keep track of the minimum unused capacity for each color and weight combination.
Iterate through the stones and colors to update the array with the minimum unused capacity.
Return the minimum unused capacity from the ar...
Your task is to rearrange a given array ARR
such that all zero elements appear at the beginning, followed by non-zero elements, while maintaining the relative order of ...
Rearrange an array to move all zeros to the left while maintaining the relative order of non-zero elements.
Iterate through the array and maintain two pointers, one for zeros and one for non-zeros.
Swap elements at the two pointers if the current element is non-zero.
Continue until all elements are rearranged according to the problem statement.
The design process for building a chatbot involves defining user goals, choosing a platform, designing conversation flow, implementing natural language processing, and testing for accuracy.
Define user goals and objectives for the chatbot
Choose a platform or framework for building the chatbot (e.g. Dialogflow, Microsoft Bot Framework)
Design the conversation flow and user interactions
Implement natural language proce...
Develop a function to print star patterns based on the given number of rows 'N'. Each row in the pattern should follow the format demonstrated in the example.
The picture illustrat...
Function to print star patterns based on the given number of rows 'N'.
Iterate through each row from 1 to N
For each row, print spaces (N-row) followed by stars (2*row-1)
Repeat until all rows are printed
I appeared for an interview in Jan 2025.
I am a passionate software developer with expertise in various programming languages and technologies.
Experienced in Java, Python, and JavaScript
Proficient in web development using HTML, CSS, and React
Familiar with database management systems like MySQL and MongoDB
HTML is a markup language used for creating web pages. Block and inline elements are two types of HTML elements with different display behaviors.
HTML stands for HyperText Markup Language and is used to create the structure of web pages.
Block elements take up the full width available and start on a new line, while inline elements only take up as much width as necessary and do not start on a new line.
Examples of block el...
CSS is a styling language used to design the layout and appearance of web pages. Client side refers to actions performed on the user's device, while server side refers to actions performed on the server.
CSS stands for Cascading Style Sheets and is used to control the visual presentation of web pages.
Client side refers to actions performed on the user's device, such as running scripts in the browser.
Server side refers t...
JavaScript is a programming language commonly used for web development. It is used in frameworks like React and Angular.
JavaScript is a high-level, interpreted programming language.
It is commonly used for client-side web development.
JavaScript can be used in frameworks like React, Angular, and Vue.
It allows for dynamic content on websites and interactive user experiences.
Java and Data Strcuture
Find the nearest word in a matrix of strings
Create a matrix of strings
Calculate the distance between the input word and each word in the matrix
Return the word in the matrix with the smallest distance to the input word
Find the smallest subset of strings in an array
Iterate through the array and compare the length of each string to find the smallest subset
Use a variable to keep track of the smallest subset found so far
Return the smallest subset at the end
I applied via Campus Placement and was interviewed in Apr 2024. There was 1 interview round.
Java fundamentals include object-oriented programming, platform independence, and strong typing.
Object-oriented programming: Java supports classes, objects, inheritance, and polymorphism.
Platform independence: Java code can run on any platform with the help of JVM.
Strong typing: Java enforces strict data type checking to prevent errors.
I applied via Campus Placement and was interviewed in Jan 2024. There were 2 interview rounds.
Core Subjects(DBMS,DCN,OS) + Aptitude + Coding(MCQS)
Check if a string is a substring of another string
Use the indexOf() method to check if the substring exists in the main string
If indexOf() returns -1, the substring is not present
If indexOf() returns a value greater than -1, the substring is present
Logical reasoning, quantitative aptitude
Scheduling algorithm is a method used to determine the order of tasks to be executed on a computer system.
Scheduling algorithms help in optimizing resource utilization and improving system performance.
Examples of scheduling algorithms include First Come First Serve, Shortest Job Next, Round Robin, etc.
Cache policy determines how data is stored, accessed, and replaced in a cache memory.
Cache policies include FIFO, LRU, LFU, and random replacement algorithms.
FIFO (First In, First Out) replaces the oldest data first.
LRU (Least Recently Used) replaces the least recently accessed data first.
LFU (Least Frequently Used) replaces the least frequently accessed data first.
Random replacement algorithm replaces data randomly.
Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.
Normalization involves breaking down data into smaller, more manageable parts.
It helps in reducing data redundancy by storing data in a structured way.
Normalization ensures data integrity by avoiding anomalies like insertion, update, and deletion anomalies.
There are different normal forms like 1NF, 2NF, 3NF, BC...
I applied via Naukri.com and was interviewed in Jul 2023. There were 2 interview rounds.
I applied via Campus Placement and was interviewed before Sep 2023. There was 1 interview round.
Very easy basic oops, os, dbms questions
I applied via Campus Placement and was interviewed in Oct 2023. There were 2 interview rounds.
Good basic question but taking time to solve
Good enough, datastructure, database, oops, other technical questions
I applied via Referral and was interviewed before Jul 2023. There were 2 interview rounds.
Normal reasi questions
Standard coding questions like Fibonacci, even, odd
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