Hybrid Network Flashcards
Define a hybrid network?
A hybrid network is a network or combination of networks. They use different connective technologies to link devices. An example of a hybrid network is a mobile phone, because it can support WiFi and cellular connections. Many laptops can support three different types of connection wired, wireless, and sometimes cellular. A hybrid network brings together all of this technology. A hybrid network can also be as simple as having both a wired connection and wireless connectivity on one home network using a wireless router supporting both. This setup provides more flexibility for users because there’s more than one way for them to connect to the network. They’re not confined to a location close to a cable.
What’s a router?
Routers, are used to interconnect networks. It only has a few ports to connect wired networks. Remember, a router uses IP addresses to forward data to the correct network and routed across the best paths. Routers can also interconnect different connection types, such as wired and wireless technologies. They are the devices that truly interconnect to different network technology.
What is a switch?
A switch is designed to have many ports so that you can connect many different devices to it with cables. They are often referred to as Ethernet switches because they allow you to use Ethernet cables to connect laptops, computers, printers, and other devices to a network.
What is a modem?
A modem, a device that connects a network to the Internet via an Internet service provider, and that converts older technology that doesn’t understand digital signals. Digital signals are patterns of ones and zeros, while older technology uses analog signals. For example, many older telephone circuits use an analog signal, but the technology is slowly being phased out. Much like a switch and a router, a modem can be built into a router to make an interconnected powerhouse.
What is a firewall?
The firewall, the security guard of the network. You will learn more about firewalls later in this course. But for now, it’s enough to know the following. A Firewall defends both the network
and the devices attached to it, by not allowing anything in from outside the network unless it has been granted permission. It’s typically placed on the edges of your network or where
the most significant threat from an attack could come from, like the Internet. By default, a firewall allows traffic from the network it’s protecting to go out to other networks.
Typically the Internet, as well as the replies to that traffic. But it will block anything originating from the outside unless it’s allowed by the firewall rules. But you will learn more about this later in this course. Firewalls can also be built into routers, especially for homes and small businesses. But larger businesses usually need extra protection. n that case, they are separate devices.
