Python programmers should be familiar with four fundamental data structures: lists, dictionaries, tuples and sets. Each of these structures has unique properties and use cases. In this article, we’ll delve into the details of these data structures, covering their creation, usage, and common operations. Let’s start the fun Guess the data structures best suited Question … Read more
Object-oriented programming (OOP) is a programming paradigm centred around the concept of objects. What is a Class? For example, if you want to model a Car, you would create a Car class that might have properties like colour, make, and model, and methods (functions) like start_engine() or drive(). What is an Object? OOP Concept Object-oriented … Read more
System design involves creating the architecture of a system to meet specific requirements. Here are some common terms used in system design: Network Partition In the context of distributed databases or systems, network partitions are particularly challenging because they force the system to make trade-offs between consistency, availability, and partition tolerance, as described by the … Read more
SQL Window Functions are powerful tools that allow users to perform calculations across a set of table rows related to the current row. What is a Window Function? A window function performs a calculation across a set of table rows that are somehow related to the current row. This set of rows is referred to … Read more
Consistent hashing is a technique used in distributed systems to evenly distribute data across a cluster of nodes, minimizing the amount of data that needs to be relocated when nodes are added or removed. This method ensures that the system remains scalable, fault-tolerant, and efficient. Introduction In a large-scale distributed system, data does not fit … Read more
Back of the envelope calculations are invaluable in the early stages of system design. These rough, rapid estimates provide ballpark figures that help engineers and architects quickly assess feasibility and compare multiple approaches, guiding more detailed analysis and design. What Are Back of the Envelope Calculations? Back of the envelope calculations are quick, simplified estimates … Read more
In today’s digital world, managing the flow of data and requests between clients and servers is critical for maintaining the performance, security, and availability of web services. One key technique used to achieve this is rate limiting. This blog will delve into the concept of rate limiting, its importance, methods, and best practices. What is … Read more
CAP theorem states that a distributed system can only guarantee two of these three properties at any given time. Introduction Distributed systems have become increasingly prevalent in today’s technology landscape, enabling scalability, fault tolerance, and high availability. However, designing and managing distributed systems comes with its own set of challenges. One fundamental concept that plays … Read more
Apache Cassandra is a highly scalable, distributed NoSQL database designed to handle large amounts of data across many servers, providing high availability with no single point of failure. This practical guide will help you understand how to use Cassandra for real-world applications. Key Points Key Concepts in Cassandra Login in console Keyspace A keyspace is … Read more
The SOLID principles are a set of five design principles that help software developers create more maintainable, understandable, and scalable code. Let’s delve into each SOLID principle and explore how they contribute to building high-quality software. Solid Overview Each principle can be applied at different levels of software design, including classes, methods, and modules. The … Read more