Network performance metrics are quantitative measurements used to evaluate the health, speed, reliability, and efficiency of a network. Key metrics include bandwidth, latency, throughput, jitter, packet loss, and uptime, which help identify…
I applied for the role of Software Architect (Java) at a well-known tech company through LinkedIn. In my resume, I highlighted things like this: My experience with microservices and cloud…
Here’s a brief explanation: 1️⃣ Session-Based Authentication Session Creation: When a user logs in, the server authenticates the credentials and creates a unique session ID, usually stored in a server-side…
1.) Explain order of execution of SQL.2.) What is difference between where and having?3.) What is the use of group by?4.) Explain all types of joins in SQL?5.) What are…
1. Java 8 Features & Functional Programming This is the hottest topic on Java interviews currently and I have increasingly see interviewer looking for candidates who knows how to write…
Got offers from Meta and Capital One! My experiences and suggestions. Hello everyone. I've recently wrapped up the interview process for Meta (E4 SWE) and Capital One (Senior Software Engineer)…
Arrays:int[] arr = new int[size];int[] numbers = {1, 2, 3, 4, 5};int[][] matrix = {{1, 2, 3},{4, 5, 6},{7, 8, 9}};for( int num : nums).length Strings:.toCharArray() Hashmap: Map<Character, Integer> count…
Must-Know Array DSA Topics with Time & Space Complexity Below is a comprehensive list of must-know Array DSA topics, including time & space complexity for common operations. 🔹 Basic Array…
Hello friends, in the last 6 months, I have attended more than 50 Java interviews across different companies, ranging from startups to large enterprises like investment banks like UBS, Citi,…
Here are 10 coding best practices that have helped me write better Java code— and how you can apply them in your projects. 1. Avoid Null References Using Optional Problem: NullPointerException is one…