Cloud Computing

Cloud Computing Cloud computing refers to the delivery of computing services, including storage, processing power, and applications, over the internet. Instead of owning and maintaining physical servers or infrastructure, users can access these resources on-demand, paying only for what they use. See our Youtube video here :    

WE/NIS – What is ISO 27001 and Risk Management

WE/NIS – What is ISO 27001 and Risk Management Security Policy A security policy is a set of documented rules, guidelines, and procedures that define how an organization manages and protects its information assets. It serves as a foundation for establishing and maintaining a secure environment, outlining the organization’s approach to information security, and guiding […]


REST API and JSON (WE/NIS) What is a REST API? A REST API, or RESTful API, is a type of application programming interface (API) that follows the principles of Representational State Transfer (REST) architectural style. It allows communication between different applications or systems over the internet, typically using HTTP requests and responses. Think of it […]

CAP Theorem (NIS)

CAP Theorem (NIS) The CAP theorem, also known as Brewer’s theorem, is a concept in distributed systems that states that it is impossible for a distributed system to simultaneously provide all three of the following guarantees: Consistency, Availability and Partition Tolerance. C – Consistency All nodes in the distributed system see the same data at […]

What is a Cluster

What is a Cluster COMPUTER CLUSTERS A cluster refers to a group of interconnected computers that work together to perform a task or process data as a single unit. These computers, or nodes, are typically connected through a high-speed network and function collaboratively to achieve a common goal.Clusters are commonly used in various fields, including […]

Network Architecture and Concepts

Network Architecture And Concepts Further Network Architecture & Concepts 1. Network Devices Hub Hubs operate at the physical layer (Layer 1) of the OSI model. They are used to connect multiple devices in a local area network (LAN). Hubs simply broadcast data to all devices connected to them. They don’t have the intelligence to filter […]

TCP/IP Addressing & Network Design

TCP/IP Addressing and Network Design What is IP addressing IP addressing is a fundamental concept in computer networking that involves assigning unique numerical labels to devices participating in a network. These numerical labels, known as IP addresses, serve two main purposes: Host Identification: IP addresses uniquely identify each device (such as computers, smartphones, printers, and […]

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