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What is a Routing Table in Computer Networks?
Introduction Routing is a fundamental concept in the field of data communication networks. Routing allows the transmission of data from a specific source address to a designated destination address across a network that is interconnected. Routing takes place at the network layer, specifically Layer 3, within the framework of the Open Systems Interconnection (OSI) reference…
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RSTP Protocol in Networking || Rapid Spanning Tree Protocol
Introduction One of the challenges of network switching is to avoid loops in the network topology. Loops can cause problems such as broadcast storms, multiple frame copies, and MAC address table instability. To prevent loops, switches use a protocol called Spanning Tree Protocol (STP). STP creates a logical tree structure of the network by blocking…
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What is OSPF Protocol || Open Shortest Path First
Introduction OSPF is a routing protocol that is widely used in large and complex networks. The Open Shortest Path First (OSPF) protocol is classified as an Interior Gateway Protocol (IGP). It is utilized to determine the optimal routing path between a source and destination router by implementing the shortest path first (SPF) algorithm. OSPF Protocol…
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Cisco SD-WAN Certification, Its Scope, and Cost in 2025
Why network professionals must take Cisco SD-WAN (300-415 ENSDWI) training and certification, is a bigger question today? Find all the answer you need to know with PyNet Labs.
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What is Policy Based Routing (PBR) in Networking?
Introduction Policy Based Routing is a powerful network management technique that enables efficient control and prioritization of network traffic flow. Nowadays, a number of applications are working side by side, and it’s a must to connect these applications. Because of this, the network traffic nature has become more complicated. Using traditional mechanisms, it may be…
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What is Summer Training and What are its Benefits?
Introduction Knowing about what is summer training will assist you in the present competitive job market. Only graduating from college will not impress employers enough to choose you over many other candidates who are more prepared or competent to do the job. Therefore, to succeed in today’s competitive environment, we must equip ourselves with the skillset…
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Top 25 BGP Interview Questions and Answers (2025)
BGP stands for Border Gateway Protocol. It is a common EGP (exterior gateway protocol) that is designed to transfer information on reachability and routing between autonomous systems (AS) via the Internet. This protocol is one of the favourite topics of interviewers.
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What is Port Security in Networking?
Introduction With port security, network administrators can limit which devices can connect to which ports on a router or switch. It can stop unauthorized devices from accessing your network and compromise its safety and functionality. As a component of the CCNA course, Port Security is a subject of particular importance. In this blog, we will discuss the…
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Top 25 SD-WAN Interview Questions and Answers (2025)
These SD-WAN interview questions are curated by the combined efforts of some of the leading recruiters and SD-WAN technology leaders.
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How to Configure a Cisco Router in 10 Steps?
Configure Cisco Router – Router, an essential network device that connects two or more packet-switched networks or subnetworks, is something that every network engineer must become familiar with.
