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Networking > Networking: Connecting to the Internet > Flashcards

Networking: Connecting to the Internet Flashcards

1
Q

Ad-Hoc network

A

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

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2
Q

Asymmetric Digital Subscriber Line (ADSL)

A

A device that establishes data connections across phone lines and different speeds for uploading and downloading data

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3
Q

Baud rate

A

A measurement of how many bits could be passed across a phone line in a second

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4
Q

Bluetooth

A

The most common short range wireless network

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5
Q

Broadband

A

Any connectivity technology that isn’t dial-up Internet

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6
Q

Cable modem

A

A device that sits at the edge of a consumer’s network and connects it to the cable modem termination system

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7
Q

Cable modem termination system

A

Connects lots of different cable connections to an ISP’s core network

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8
Q

Channels

A

Individual, smaller sections of the overall frequency band used by a wireless network

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9
Q

Collision domain

A

A network segment where only one device can communicate at a time

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10
Q

Data payload section

A

Has all of the data of the protocols further up the stack of a frame

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11
Q

Dial-up

A

Uses POTS for data transfer, and gets its name because the connection is established by actually dialing a phone number

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12
Q

DSL

A

Digital subscriber line 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

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13
Q

DSLAM

A

Digital Subscriber Line Access Multiplexers are devices that connect multiple DSL connections to a high-speed digital communications channel

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14
Q

Duration field

A

Specifies how long the total frame is

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15
Q

Frame check sequence

A

It is a 4-byte or 32-bit number that represents a checksum value for the entire frame

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16
Q

Frame control field

A

16 bits long, it contains a number of sub-fields that are used to describe how the frame itself should be processed

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17
Q

Frequency band

A

A certain section of the radio spectrum that’s been agreed upon to be used for certain communications

18
Q

FTTB

A

Fiber to the building, fiber to the business or even fiber to the basement, since this is generally where cables to buildings physically enter. FTTB is a setup where fiber technologies are used for data delivery to an individual building

19
Q

FTTH

A

Fiber to the home. This is used in instances where fiber is actually run to each individual residents in a neighborhood or apartment building

20
Q

FTTN

A

Fiber to the neighborhood. This means that fiber technologies are used to deliver data to a single physical cabinet that serves a certain amount of the population

21
Q

FTTP

A

Fiber to the premises. FTTH and FTTB may both also be referred to as FTTP

22
Q

FTTX

A

Stands for fiber to the X, where the X can be one of many things

23
Q

HDSL

A

High Bit-rate Digital Subscriber Lines. These are DSL technologies that provision speeds above 1.544 megabits per second

24
Q

MAC filtering

A

Access points are configured to only allow for connections from a specific set of MAC addresses belonging to devices you trust

25
Q

Mesh networks

A

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

26
Q

Metered connection

A

An internet connection where all data transfer usage is tracked. Cell phone plans that have a limit on data usage per month or that charge based on usage are examples of metered connections

27
Q

Non-metered connection

A

A connection where your data usage is not tracked or limited, instead you are charged a flat fee for unlimited and unrestricted usage. A Wi-Fi connection is an example of a non-metered connection

28
Q

Optical Network Terminator

A

Converts data from protocols the fiber network can
understand to those that are more traditional twisted pair copper networks can understand

29
Q

Pairing

A

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

30
Q

Point-To-Point VPN

A

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

31
Q

Receiving address

A

The MAC address of the access point that should receive the frame

32
Q

Symmetric Digital Subscriber Line (SDSL)

A

A device that establishes data connections across phone lines and has upload and download speeds that are the same

33
Q

Sequence control field

A

A field that is 16 bits long and mainly contains a sequence number used to keep track of ordering the frames

34
Q

Short-range wireless network

A

It is what mobile devices uses to connect to their peripherals

35
Q

T-Carrier technologies

A

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

36
Q

Transmitter address

A

The MAC address of whatever has just transmitted the frame

37
Q

Wi-Fi Protected Access (WPA)

A

A security program that uses a 128-bit key to protect wireless computer networks, which makes it more difficult to crack than WEP

38
Q

Wide area network

A

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

39
Q

Wired Equivalence Privacy (WEP)

A

An encryption technology that provides a very low level of privacy. WEP should really only be seen as being as safe as sending unencrypted data over a wired connection

40
Q

Wireless access point

A

A device that bridges the wireless and wired portions of a network

41
Q

Wireless LANS (WLANS)

A

One or more access points act as a bridge between a wireless and a wired network

42
Q

Wireless networking

A

Networks you connect to through radios and antennas

Networking (7 decks)

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