2.9 networking hardware Flashcards
What is a Network Adapter/Card?
Used as the interface between the network and the device, it allows connection to be made to the network.
What are some networking components?
Network adapter/card, Hub, Switch, Routers, Firewall, Network cables.
What is a Hub?
Dumb switch because data comes into a port and is sent out to all ports, the hub doesn’t know anything about the location of the destination device.
What is a Switch?
Used to send data from one network device to another network device using MAC address, they store MAC addresses of devices that communicate with them. Operates at layer 2 and can also operate at layer 3. Layer 3 switches can perform like a router does.
What is a Router?
transfers data between different networks, routers use IP addresses to forward traffic. Routers use routing tables. Routing tables keeps track of network addresses, subnet masks, routes sources, destination network, outgoing interface.
What is a Firewall?
Allows or denies certain types of traffic or services from getting into or out of your network, firewall can be software or hardware, every firewall is a router.
What are Network Cables?
Cables to connect network devices to each other, most used today are Ethernet (copper) and fiber optic (glass) cables.
What factors are dependent on the network device and cabling in networking?
Network card, Network switch, Computer RAM, Network cables, Routers.
What are the speed ratings of commonly used network cables?
Category 3 – 10Mbps, Category 5 – 100Mbps, Category 5e – 1Gbps, Category 6 – 1Gbps, Category 6a – 10Gbps, Category 7 – 100Gbps.
What are the limitations of Ethernet in networking?
Limit to 100 meters, need to have signals repeated with a switch or other device to allow data to pass the limit of 100 meters.
What are the advantages of fiber optic in networking?
Able to allow data to travel great distances without attenuation, attenuation: losing signal strength.
What are the types of fiber optic cables?
Multimode fiber, Single mode fiber
