Md. Sajid

Md. Sajid

339 Articles Published

Articles by Md. Sajid

Page 3 of 34

Difference between IGRP and EIGRP

Md. Sajid
Md. Sajid
Updated on 16-Mar-2026 2K+ Views

The distance-vector routing protocols IGRP (Interior Gateway Routing Protocol) and EIGRP (Enhanced Interior Gateway Routing Protocol) are both proprietary Cisco protocols used in enterprise networks. While IGRP was widely deployed in the 1980s and 1990s, EIGRP serves as its modern successor with significant improvements in performance and functionality. Understanding the differences between these protocols is essential for network engineers working with Cisco infrastructure, as EIGRP has largely replaced IGRP in contemporary network deployments. What is IGRP? Interior Gateway Routing Protocol (IGRP) is a distance-vector routing protocol developed by Cisco Systems in the 1980s. It was designed to ...

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Difference Between VLAN and VPN

Md. Sajid
Md. Sajid
Updated on 16-Mar-2026 2K+ Views

VLAN and VPN are two independent technologies in computer networking that serve different purposes. A Virtual Private Network (VPN) is a secure, encrypted connection established through a public network (such as the Internet) to connect remote users or networks to a private network. A Virtual Local Area Network (VLAN) is a logical network formed within a physical network infrastructure to segment devices into separate broadcast domains. VLAN vs VPN — Different Network Solutions VLAN Local Network Segmentation Layer 2 (Data ...

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Difference Between LDAP and Active Directory

Md. Sajid
Md. Sajid
Updated on 16-Mar-2026 975 Views

The LDAP (Lightweight Directory Access Protocol) protocol is an open standard for accessing and manipulating directory services. It is a lightweight, platform-independent protocol that allows for standardized interaction with directories. Microsoft's Active Directory (AD) is a directory service designed for Windows-based networks that implements LDAP along with additional Microsoft-specific features. Read this article to find out more about LDAP and Active Directory and how they are different from each other. What is LDAP? The LDAP (Lightweight Directory Access Protocol) is an open standard protocol used to access and modify directory information services over an IP network. LDAP ...

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Difference Between USB and Firewire

Md. Sajid
Md. Sajid
Updated on 16-Mar-2026 779 Views

The two most commonly used interfaces for connecting peripheral devices to computers are USB (Universal Serial Bus) and Firewire (IEEE 1394). While they both fulfill similar functions, they differ significantly in terms of technological specifications, data transfer rates, and usage scenarios. This article explores the key differences between USB and Firewire interfaces, their features, and their optimal use cases in modern computing environments. What is USB? The USB (Universal Serial Bus) interface is a standardized connection method for peripheral devices to computers, laptops, and other electronic devices. It was designed to simplify device connection and communication, enabling ...

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Difference Between VPN and VNC

Md. Sajid
Md. Sajid
Updated on 16-Mar-2026 1K+ Views

VPN and VNC are two distinct technologies with different purposes. Both involve network connectivity, but they serve different functions and operate at separate layers of the networking stack. VNC is a graphical desktop-sharing system that allows network-based remote control and access to a computer's desktop environment. VPNs focus on establishing secure and private network connections over public networks while providing encryption and anonymity. What is VPN? A Virtual Private Network (VPN) is a technology that creates a secure and encrypted connection over a public network, such as the internet. It allows users to connect to a private ...

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Difference Between CCNA and CCNP

Md. Sajid
Md. Sajid
Updated on 16-Mar-2026 341 Views

Cisco Systems, an internationally recognized provider of networking and IT infrastructure solutions, offers both the CCNA and CCNP certifications. These industry-recognized certificates verify a person's knowledge and skill in Cisco networking technologies. While both certifications focus on networking, they target different skill levels and cover different topics. Read this article to find out more about CCNA and CCNP and how they are different from each other. What is CCNA? CCNA (Cisco Certified Network Associate) is Cisco's entry-level networking certification designed for individuals with basic networking knowledge who want to establish a career in networking. The CCNA certification ...

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Difference Between DMZ and Firewall

Md. Sajid
Md. Sajid
Updated on 16-Mar-2026 2K+ Views

The DMZ (Demilitarized Zone) and firewall are two important network security components that serve different purposes. A DMZ is a network segment that provides controlled access to resources from untrusted networks, such as the internet, while minimizing risk to the internal network. A firewall is a security device or software that serves as a barrier between networks, controlling traffic flow based on predefined security rules. DMZ Network Architecture Internet (Untrusted) FW DMZ (Semi-trusted) ...

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Difference Between VLAN and Subnet

Md. Sajid
Md. Sajid
Updated on 16-Mar-2026 1K+ Views

VLAN (Virtual Local Area Network) and subnet are two fundamental networking concepts that serve different purposes in network design. A VLAN is a logical grouping of devices on the same physical network that appear as separate networks, while a subnet is a logical division of an IP network based on IP address ranges. Understanding the distinction between VLANs and subnets is crucial for effective network design, as they operate at different OSI layers and solve different networking challenges. VLAN vs Subnet Conceptual View VLAN (Layer 2) ...

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Difference Between Amplification and Retransmission

Md. Sajid
Md. Sajid
Updated on 16-Mar-2026 489 Views

Amplification and retransmission are two fundamental techniques used in communication systems to improve and extend signal transmission over long distances and challenging environments. Amplification increases the strength of a signal without changing its frequency or shape, whereas retransmission involves receiving a signal and transmitting it through a different channel or path to overcome obstacles and extend communication range. What is Amplification? Amplification is the process of increasing the strength or amplitude of a signal while preserving its frequency and shape characteristics. Amplifiers are electronic devices that boost signal strength and efficiency using external power sources. Common ...

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Difference between WAP and Router

Md. Sajid
Md. Sajid
Updated on 16-Mar-2026 2K+ Views

Routers and Wireless Access Points (WAPs) are two fundamental networking devices that enable internet connectivity, but they serve different purposes. A WAP provides wireless network access to devices, while a Router routes data packets between networks and connects multiple devices to the internet through LAN and WAN ports. Routers determine the best path for data transmission and provide network security features. Modern routers offer Wi-Fi connectivity to multiple devices along with additional functions like firewall protection and VPN support. WAPs focus specifically on extending wireless coverage, while routers serve as gateways with comprehensive network management and security capabilities. ...

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