2026

ServiceNow is a cloud-based Platform-as-a-Service (PaaS) that uses AI and machine learning to automate enterprise workflows, specifically for IT, HR, customer service, and security. It serves as a central system of action, connecting disparate departments to streamline processes, improve productivity, and enhance employee and customer experiences. Key Aspects of ServiceNow: Core Functionality: Originating in IT Service Management…

Zscaler is a cloud-native cybersecurity platform that provides secure, Zero Trust  access to applications and the internet from any location or device. It operates as a security service edge (SSE) platform, replacing traditional VPNs and firewalls by routing traffic through a distributed, global cloud network to inspect for threats, prevent data leaks, and secure remote work….

Microsoft Intune is a cloud-based unified endpoint management service that secures and manages mobile devices, desktop computers, and applications As part of the Microsoft 365 suite, it enables IT to control data access on both corporate and Bring Your Own Device (BYOD) setups. It is used for enforcing security policies, managing app deployment, and facilitating remote work,…

A router is a networking device that connects multiple networks (such as connecting a home Local Area Network, or LAN, to the Internet/WAN) and acts as a traffic director. It receives, analyzes, and forwards data packets between networks to their intended IP addresses, ensuring efficient data routing and enabling multiple devices to share one internet connection. …

A network switch is a hardware device that connects multiple devices (computers, printers, servers) within a Local Area Network (LAN) using Ethernet cables. It operates at Layer 2 (Data Link Layer) of the OSI model, intelligently forwarding data packets only to the intended destination device using MAC addresses, which increases network efficiency and speed. How a…

A Layer 3 (L3) switch is a high-performance networking device that combines the functions of a switch and a router, operating at both the Data Link (Layer 2) and Network (Layer 3) layers of the OSI model. Unlike traditional routers, L3 switches use specialized hardware (ASICs) to route data packets between subnets or VLANs at speeds…

A Layer 2 (L2) switch is a high-speed networking device operating at the Data Link layer (Layer 2) of the OSI model, primarily used to connect devices within a local area network (LAN). It forwards data frames based on destination MAC addresses, using a MAC address table to direct traffic specifically to the intended port, reducing…

Configuring routing between two networks requires connecting them via a router or Layer 3 device and defining the path for traffic using static or dynamic routes. The process involves assigning distinct IP subnets, setting unique gateway IP addresses on the router for each network, and configuring static routes (ip route) on each side to recognize the…

Static routing in computer networks is a manual configuration method where network administrators explicitly define the paths for data packets in a router’s routing table.  It is a non-adaptive technique ideal for small, stable networks, offering high security, predictability, and low resource overhead because it does not require frequent routing table updates.  Key aspects of static…

Routing is the fundamental networking process of selecting the best, most efficient path for data packets to travel across1 or more networks from a source to a destination. Operating at Layer 3 (Network Layer) of the OSI Model, it enables, data, such as internet traffic, to navigate through routers and across different networks. Key Aspects of Routing…