Internet, Intranet & Extranet Flashcards
Whats the Internet?
It’s a public network that allows you to access information and services from anywhere in the world. Remember, the internet is an open network, meaning that anyone can access it, and it’s not owned by any single organization or entity.
What the Intranet?
However, an intranet is different, it’s a private network that’s used within an organization to share information and resources. It’s similar to the internet but is restricted to authorized users. You access it from within the organization’s network, but it can also be accessed remotely through a VPN (Virtual Private Network) connection. You will learn more about VPNs later.
The intranet is used for a variety of purposes, including:
Internal communication: Including email, messaging, and video conferencing.
Resource sharing: Including sharing documents and other resources within the business.
Knowledge management: It can also be used for sharing knowledge and expertise, such as best practices, training resources, and policies.
Project management: It can be used for managing projects within an organization, including task management, scheduling, and collaboration.
Whats the Extranet?
Extranet
An extranet takes Intranet a step further. It’s also a private network. It’s used for sharing information and resources securely between an organization and its external partners, vendors, and customers. Internal users access it just like an intranet, but it is also accessible to authorized external users.
The extranet is used for a variety of purposes, including;
Improved collaboration: The extranet enables organizations to collaborate with external parties in a secure and controlled manner. It allows for the sharing of information, documents, and other resources, which can help to improve communication and collaboration between different stakeholders.
Enhanced communication: Extranets provide a secure and controlled environment for communication between an organization and external parties. This can help to improve communication and reduce errors and misunderstandings.
Streamlined business processes: An extranet can help streamline business processes by allowing external parties to access relevant information and resources. This helps to reduce administration and improve the efficiency of business processes.
Better customer service: An extranet can be used to provide better customer service by allowing customers to access relevant information and resources. This can include information about products and services, order status, and support resources.
Increased productivity: By providing external parties with access to relevant information and resources, an extranet can help to increase productivity. This can include access to training materials, product information, and other resources that can help external parties to work more effectively.
What are the Wifi router security protocols?
-WEP (Wired Equivalent Privacy): older and least secure; shared key to authenticate users and encrypt data
-WPA (Wi-Fi Protected Access): passphrase or key to authenticate users and encrypt data.
-WPA2 (Wi-Fi Protected Access II): stronger encryption algorithm than WPA and provides better protection
-WPA2-PSK (Wi-Fi Protected Access II with Pre-Shared Key): pre-shared key (PSK) for authentication.
-EAP-TLS (Extensible Authentication Protocol-Transport Layer Security): enterprise level networks; digital certificates to authenticate users and encrypt data
-MAC-Based Security: Media Access Control (MAC) address of a device to authenticate users and grant access to the wireless network. MAC-based security is more secure than WEP but less secure than WPA or WPA2.
How do you keep a wireless network secure?
-Change default user/password
-Strong encryption
-Guest ntwrk
-Mac Address filtering
-Keep router firmware up-to-date
-Disable remote management
