Connecting to the Internet Flashcards
A network configuration without supporting network infrastructure. Every device involved with the ad-hoc network communicates with every other device within range, and all nodes help pass along messages
AD-HOC NETWORK
A device that establishes data connections across phone lines and different speeds for uploading and downloading data
ASYMMETRIC DIGITAL SUBSCRIBER LINE (ADSL)
A measurement of how many bits could be passed across a phone line in a second
BAUD RATE
The most common short range wireless network
BLUETOOTH
Any connectivity technology that isn’t dial-up Internet
BROADBAND
A device that sits at the edge of a consumer’s network and connects it to the cable modem termination system
CABLE MODEM
Connects lots of different cable connections to an ISP’s core network
CABLE MODEM TERMINATION SYSTEM
Individual, smaller sections of the overall frequency band used by a wireless network
CHANNELS
A network segment where only one device can communicate at a time
COLLISION DOMAIN
Has all of the data of the protocols further up the stack of a frame
DATA PAYLOAD SECTION
Uses POTS for data transfer, and gets its name because the connection is established by actually dialing a phone number
DIAL-UP
Was able to send much more data across the wire than traditional dial-up technologies by operating at a frequency range that didn’t interfere with normal phone calls
DSL (DIGITAL SUBSCRIBER LINE)
Devices that connect multiple DSL connections to a high-speed digital communications channel
DSLAM (DIGITAL SUBSCRIBER LINE ACCESS MULTIPLEXERS)
Specifies how long the total frame is
DURATION FIELD
A 4-byte or 32-bit number that represents a checksum value for the entire frame
FRAME CHECK SEQUENCE
16 bits long, it contains a number of sub-fields that are used to describe how the frame itself should be processed
FRAME CONTROL FIELD
A certain section of the radio spectrum that’s been agreed upon to be used for certain communications
FREQUENCY BAND
A setup where fiber technologies are used for data deliver to an individual building
FTTB (FIBER TO THE BUILDING, BUSINESS, BASEMENT)
This is used in instances where fiber is actually run to each individual residence in a neighborhood or apartment buildling
FTTH (FIBER TO THE HOME)
This means that fiber technologies are used to deliver data to a single physical cabinet that serves a certain amount of the population
FTTN (FIBER TO THE NEIGHBORHOOD)
Another way to refer to FTTH and FTTB
FTTP (FIBER TO THE PREMESIS)
Another way to describe a fiber setup, where X can be one of many things
FTTX (FIBER TO THE X)
These are DSL technologies that provision speeds above 1.544 megabits per second
HDSL (HIGH BIT-RATE DIGITAL SUBSCRIBER LINES)
Access points are configured to only allow for connections from a specific set of MAC addresses belonging to devices you trust
MAC FILTERING
Like ad-hoc networks, lots of devices communicate with each other device, forming a mesh if you were to draw lines for all the links between all the nodes
MESH NETWORKS
An internet connection where all data transfer usage is tracked. EX: Cell phone plans that have a limit on data usage per month or that charge based on usage
METERED CONNECTION
A connection where your data usage is not tracked or limited, instead you are charged a flat fee for unlimited and unrestricted usage. EX: A Wi-Fi connection
NON-METERED CONNECTION
Converts data from protocols the fiber network can understand to those that are more traditional twisted pair copper networks can understand
OPTICAL NETWORK TERMINATOR
When a wireless peripheral connects to a mobile device, and the two devices exchange information, sometimes including a PIN or password, so that they can remember each other
PAIRING
Establishes a VPN tunnel between two sites but VPN tunneling logic is handled by network devices at either side, so that users don’t all have to establish their own connections
POINT-TO-POINT VPN
The MAC address of the access point that should receive the frame
RECEIVING ADDRESS
A device that establishes data connections across phone lines and has upload and download speeds that are the same
SYMMETRIC DIGITAL SUBSCRIBER LINE (SDSL)
A field that is 16 bits long and mainly contains a sequence number used to keep track of ordering the frames
SEQUENCE CONTROL FIELD
What mobile devices use to connect to their peripherals
SHORT-RANGE WIRELESS NETWORK
Technologies invented to transmit multiple phone calls over a single link. Eventually, they also became common transmission systems to transfer data much faster than any dial-up connection could handle
T-CARRIER TECHNOLOGIES
The MAC address of whatever has just transmitted the frame
TRANSMITTER ADDRESS
A security program that uses a 128-bit key to protect wireless computer networks, which makes it more difficult to crack than WEP
WI-FI PROTECTED ACCESS (WPA)
Acts like a single network but spans across multiple physical locations. WAN technologies usually require that you contract a link across the internet with your ISP
WIDE AREA NETWORK (WAN)
An encryption technology that provides a very low level of privacy. Should really only be seen as being as safe as sending unencrypted data over a wired connection
WIRED EQUIVALENCE PRIVACY (WEP)
A device that bridges the wireless and wired portions of a network
WIRELESS ACCESS POINT
One or more access points act as a bridge between a wireless and a wired network
WIRELESS LANS (WLANS)
Networks you connect to through radios and antennas
WIRELESS NETWORKING
