Heap Memory Management Explanation of heap memory management and its benefits

Hashmap is the favorite Java Collection of interviewers . You might get a coding problem where you need to use it but be prepared for some theoretical questions as well like below : - The concept of hashing - Collision resolution in HashMap - Use of equals () and hashCode ()

Reduced Docker image from 1.2GB to 180MB. Deploy time: still slow. Bottleneck wasn't image size. It was pulling from ECR over a NAT Gateway. Set up VPC endpoints for ECR. Deploy time dropped from 2 minutes to 55 seconds. Additionally, reduced NAT gateway costs.

Explain what design patterns Spring Boot uses internally. Interviewers aren’t asking if you know the patterns. They’re checking if you understand how Spring Boot is architected using them. 1. Singleton Pattern Spring Boot Beans are Singleton by default. When you annotate a

One backend concept that’s rarely discussed but crucial: Backpressure. Its how a system handles cases where the producer is faster than the consumer. Without it, queues can fill up, memory spikes, and services fail. Used in Kafka, WebFlux, gRPC, and RxJava , it's essential for

SSO (Single Sign-On) Clearly Explained. SSO can be thought of as a master key to open all different locks. It allows a user to log in to different systems using a single set of credentials. To fully understand the SSO process, let’s take a look at how a user would log into

DATABASE INDEXING IN SYSTEM DESIGN → Database Indexing is a technique used to improve query performance by allowing databases to locate data faster without scanning entire tables. → Indexes play a critical role in scalability, performance, and efficient data access in system

🚀 Spring Boot: If your application uses RestTemplate for REST calls, you can centralize timeouts with RestTemplateBuilder . #SpringBoot #JavaDev

How can hackers guarantee access during a login attempt, even without knowing the password? 🤔 The answer lies in the simple SQL Injection "OR" payload. #SQLInjection #EthicalHacking #Cybersecurity #ORPayload

How Private Subnets Access the Internet? Private does NOT mean no internet. It means no inbound exposure. -------------------------------- 📍 Private Subnet EC2 instance - No public IP - Not reachable from the internet Route table 0.0.0.0/0 → NAT Gateway

GPU Programming

Good evening guy's 😄 Grinding on Google authentication for ai-chabot✅

If you didn’t know, APIs can be hacked — here’s how 👀🎃

Database Isolation Levels 👇 Isolation levels define how one transaction interacts with others. Read Uncommitted is the lowest level and allows reading data that isn't saved yet. This can lead to "Dirty Reads," where you read data that might be rolled back. Read Committed

شہیر سیالوی صاحب نے مرزا کو آئینہ دکھا دیا مرزا، عمران خان مدینہ میں ننگے پاؤں چلا اسی لیے تو ہم اسکے دیوانے ہیں۔تمکو اس پر بھی اعتراض ہے۔۔۔۔

To verify your X account with Premium, it will cost only Rs 2,200 in Pakistan. Do it now, you’ll not only recover your cost but earn even more through posting.

How CPU caches save time accessing data

x.com/i/article/2012…

5 Multithreading Interview questions and answers that you must know as a beginner :