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ITF Unit 3 - Networking
Terms in this set (40)
Any part of the network that receives data such as a workstation
Local Area Network; a network that covers a relatively small geographic area such as a building or a small campus - no more than a mile distance between computers
Network Interface Card
A card installed in a computer that allows you to connect to a network (can be Ethernet, telephone, or wireless)
Metropolitan Area Network; a geographic network that covers a larger geographic area such as a city or community; may be used to connect computers in libraries, government agencies, etc. together - no more than 30 miles in size
Peer to Peer (P2P)
A controller network that simply connects computers to each other or to a device such as a printer, but a server is not necessary
the rules that must be observed for two electronic devices to communicate with each other
A device that transfers data from one network to another in an intelligent way
A computer with large processing resources that stores all of the software that can control a network, as well as software that can be shared with the computers attached to the network.
A computer networking device that connects network segments
Wide Area Network; largest type of network in terms of geographic area; largest WAN is the Internet
Wireless Local Area Network
Allows electronic devices like cell phones and computers to exchange data over short distances using pulsed radio waves
The physical and logical design of a computer network; examples include mesh, bus, ring and star; the physical layout of the network devices and the cabling, and how all the components communicate with each other
DNS (Domain Name System)
Equipment that converts numbers to names on the internet like a phone book.
Two or more computers linked to share information
Model used to teach, map, and discuss layered communication
Network configuration wherein all computers connect to the network via a central cable.
All devices are connected to one another in the shape of a closed loop, so that each device is connected directly to two other devices, one on either side of it.
All nodes are connected to a central computer.
Wireless local area network that uses radio signals to transmit data.
Physical Layer (OSI)
anything that moves data from one system to another
ex:hubs, cables, fiber, radio waves
Media Access Control(MAC) Address
Refers to the physical address on a network. (The Actual Device)
Internet Protocol (OSI)
Responsible for making sure everything gets to where it is supposed to go
(done by assigning each device its own address)
Chops up the data into little packets and reassembles the chunks at the other end of the transmission
Not the apps/programs themselves but the code that enables them to be "network aware or capable"
Ex: web browsers, email app
A four-layer data communication model
developed by the United States Department of Defense. To some extent, it is similar to the OSI model.
Should be called ip packet layer because this layer deals with pure IP packets.IP packets are created in this layer
Routing is also handled here.
Network layer of OSI model
Application Layer (TCP/IP)
Top 3 layers of the OSI model
Uses unique port number systems for applications
Ports range from 1-65535
Simple Mail Transfer Protocol(SMTP)
Port: 25, UDP
TCP/IP protocol used in sending and receiving e-mail.
Name for data that moves at the network layer
They contain destination and source IP address + data and are reassembled when received by a client.
Hypertext Transfer Protocol (HTTP)
protocol that defines how messages are formatted and transmitted over the World Wide Web
The connector used in both ends of cat-5 cable
Class 1 Bluetooth
_____devices have a range of 100 meters (about 328 feet)
Class 2 Bluetooth
____ devices are commonly used in a personal area network (PAN) and have a range of about 33 feet (10 meters).
Class 3 Bluetooth
______devices have a range of 1m (3ft)
Each binary digit is called a _____
Eight bits together form a ______
is really just an electrical repeater. It takes whatever signal comes in, and sends it out on all the other ports.
A number that uniquely identifies each computer or device connected at specific location to the Internet.
ISP (Internet Service Provider)
company that offers Internet connections at monthly rates depending on the kind and amount of access needed
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