Network are used to connect devices together. Device use the network to communicate and share the information devices need to speak the same language. This language is called PROTOCOL which is a set of instructions of how to handle information
Types of Networks
– LAN : A LAN (Local Area Network) is a collection of network devices within a local area, such as a single building.
– WAN : A WAN (Wide Area Network) connects networks that are far apart, spanning large geographical areas.
Router:
A router is a networking device that forwards data packets between computer networks. It directs traffic on the internet, allowing multiple devices to share a single internet connection. Routers use protocols to determine the best path for data to travel and ensure efficient and secure communication between devices on different networks.
Features of a Router
A router is equipped with multiple essential features, such as:
1. Routing: Chooses the most efficient route for data packets to take when they are transferred between linked networks.
2. Traffic Management: Controls network traffic to avoid bottlenecks and guarantee effective data transfer.
3. Port Forwarding: is a networking technique used to allow external devices or users to access services, app or resources hosted on a specific devices with in a local network. it involves configuring a network device such as router or firewall.
4. Network Address Translation (NAT): enables the sharing of a single public IP address among several devices on a local network.
5. DMZ (Demilitarized Zone): In the context of computer networking and network security, a DMZ is a physical or logical subnetwork that acts as a buffer zone between an organization’s internal network and external networks, often the internet. The DMZ is designed to enhance network security by isolating certain services or resources that need to be accessible from the internet while protecting the internal network from potential security threats. This setup ensures that even if an attacker compromises the DMZ, the internal network remains secure. Services commonly placed in the DMZ include web servers, email servers, and DNS servers.
6. Firewall: Pre-established security rules are used to filter incoming and outgoing traffic, hence providing security.
7. DHCP Server: This makes network administration easier by automatically assigning IP addresses to local network devices.
8. Wireless Access Point: This component of wireless routers allows wireless devices to establish a Wi-Fi network connection.
9. Quality of Service (QoS): Gives some traffic types priority in order to provide the best possible performance for critical applications.
Views: 71