Telecommunications Chapters 1

Front 1

Internet (capital I)

Back 1

A mix of smaller internets and single networks

Front 2

host

Back 2

A computer attached to an internet

Front 3

fragmentation

Back 3

If the message is long it is broken up into separate segments and then transmitted over the network. This improves throughput if there are errors and allows multiplexing

Front 4

Multiplexing

Back 4

Multiple applications using the same transmission lines

Front 5

4 types of single networks

Back 5

1. Point to Point 2. Wireless 3. Switched 4. Hybrid Switched wireless

Front 6

5 Layers

Back 6

1. Physical 2. Data Link 3. Internet 4. Transport 5. Application

Front 7

Frames

Back 7

Use over a single network

(contains Destination address)

Front 8

Packets

Back 8

use over multiple internets

Front 9

802.11

Back 9

standards that govern wireless local area networks

Front 10

Physical Layer Standards

Back 10

govern transmission media such as wires, connectors, and signaling

Front 11

Data Link Layer Standards

Back 11

Data link layer standards determine how frames are organized

Front 12

Point to Point network

Back 12

A point to point connection between two hosts

Front 13

Wireless single networks

Back 13

Host and destination do not communicate directly but rather via an access point or router

Front 14

Switched single networks

Back 14

Frame is forwarded over a number of transmission links to the destination

Front 15

Switches

Back 15

Forwarding devices used in switched networks. Each switch knows which switch to send it to directly after but thats it

Front 16

hybrid switched/wireless network

Back 16

Many hosts connect directly to a switch and some connect via an access point

Front 17

IP packet

Back 17

travels from the source host to the destination host delivering an application segment

Front 18

Encapsulation

Back 18

Putting something inside something else such as is done with putting an IP packet inside a frame

Front 19

Route

Back 19

the path a packet takes from the source host to the destination host across an internet.

Front 20

Internet layer standards

Back 20

Internet Protocol or IP which governs the transmission of packets by routers across an internet between the source and destination hosts

Front 21

Standards

Back 21

detailed rules of operation that specify how two hardware or software processes work together

Front 22

Physical Layer

Back 22

Transmission media plugs and connectors signaling

Front 23

Data Link layer

Back 23

Transmit a frame across a single network. Frame organization, switch and access point operation, and other things needed to transmit a frame across a data link in a single network

Front 24

internet layer

Back 24

ransmit a packet across an internet. Packet organization, router operation, other things needed to transmit a packet across a route in an internet

Front 25

Transport Layer

Back 25

Fragmentation and other functions

Front 26

Application Layer

Back 26

Standardizing communication between two application programs of a certain type

Front 27

ITU-T

Back 27

creates standards for telecommunications and networks that provide voice

Front 28

ISO

Back 28

Creates many computer standards

Front 29

TCP

Back 29

The standard for fragmenting application messages

Front 30

IP

Back 30

The standard for moving packets across routers in the internet

Front 31

DNS

Back 31

Domain name system server that looks up a certain IP address and sends it to the destination