Riya Khan
Holds a degree in Computer Networking with hands-on experience in enterprise infrastructure management. Focuses on networking fundamentals, configuration guides, and certification-prep content.
ISACA CISA Exam – 5 Essential Tips for Success
The CISA Certification Exam is an impactful preparation for students or candidates who prefer to be in the auditing sector. It is a trendy exam that is conducted worldwide. This CISA Certificate is very valuable, so this exam is complicated to crack. You’re mistaken if you think a candidate can easily break this exam. To...
How to Configure PortFast and BPDU Guard
This guide covers PortFast and BPDU Guard configuration for CCNA (200-301) and CCNP (ENARSI) exams, including hands-on labs, best practices, and how these features interact with RSTP. The switch port directly connected to an end station cannot create a bridging loop, so the port can safely skip straight to the forwarding state rather than progressing...
Layer 3 Switches: How They Work, How to Configure Them, and When to Use Them
Understanding Layer 3 of the OSI model is essential for CCNA (200-301) and CCNP Enterprise study. This layer, the Network layer, handles logical addressing with IP and is responsible for path determination and packet forwarding between networks through devices like routers. Traditional routers perform that Layer 3 work in software, which is flexible but CPU-intensive...
The Role of Switched Networks: From Flat LANs to Hierarchical Design
Early campus LANs relied on hubs and repeaters — simple devices that repeated every incoming signal out every other port, regardless of who actually needed it. As networks grew, this flat design became a genuine bottleneck: more devices meant more broadcast traffic flooding every segment, whether or not it was relevant there. Switched networks, built...
What Is a Converged Network? Architecture, QoS, and Cisco Tools
A converged network carries voice, video, and data over a single IP infrastructure, rather than maintaining separate physical networks for phones, video systems, and computers. This is standard practice in modern enterprise networking, but making it work well — without voice calls sounding choppy the moment someone starts a large file transfer — depends entirely...
Cisco Router Interfaces: Types, Configuration, and Troubleshooting
Every router interface falls into one of two broad categories: physical, where actual traffic enters and exits over real cabling or radio, and logical, which exist purely in software but serve genuinely important roles — a stable router ID, a VPN endpoint, a way to carve one physical port into many logical ones. Knowing which...