This document discusses various networking devices and wireless technologies. It describes how hubs operate at the physical layer by flooding traffic to all ports, while switches operate at the data link layer by examining packets and only sending to necessary ports. Modems convert between analog and digital signals. Bridges separate network segments, while routers connect different networks and use IP addresses. Wireless technologies discussed include Wi-Fi Direct for device-to-device connections, Wi-Fi HaLow for low power long range connections, Miracast for cable-free display sharing, ZigBee for mesh networks, and WiMax for high speed wireless broadband.
Ethernet is the traditional technology for connecting wired local area networks (LANs).
this slide describes ethernet its types and other aspects as well as its features
Integrated Services Digital Network (ISDN) is a set of communication protocols that provides digital transmission of voice, video, and data over telephone lines or normal telephone cables. ISDN was developed in the 1970s and provides end-to-end digital connectivity over digital media. ISDN services include bearer services to transfer information between networks, teleservices to allow networks to process content, and supplementary services that provide additional functionality.
A router connects two or more networks and routes packets between them using routing tables. It uses routing algorithms like distance vector or link state to dynamically determine the best paths. As a specialized computer, a router operates at the network layer and can function as a DHCP server, default gateway, and move data between networks through both hardware and software functionality.
ISDN (Integrated Services Digital Network) is a set of communication protocols that allows digital transmission of voice, video, and data over existing telephone lines. It was developed to digitize and integrate telephone networks to allow transmission of different data types. ISDN provides bearer, tele, and supplementary services through basic rate interface (BRI) with 2 B channels of 64 kbps each and 1 D channel of 16 kbps, or primary rate interface (PRI) with 23 B channels of 64 kbps and 1 D channel of 64 kbps. While ISDN provided faster speeds than analog networks, it has been surpassed by newer technologies like DSL and cable that provide even higher speeds at lower costs.
What is a network?
Need for networking
Components of Network
Types of Network
Evolution of Networking
Communication media
Data Communication Terminologies
Switching Techniques
Digital and Analog Transmission
Network Topology
Network Devices
Communication Protocols
Wireless/Mobile Computing
This document discusses various networking devices and wireless technologies. It describes how hubs operate at the physical layer by flooding traffic to all ports, while switches operate at the data link layer by examining packets and only sending to necessary ports. Modems convert between analog and digital signals. Bridges separate network segments, while routers connect different networks and use IP addresses. Wireless technologies discussed include Wi-Fi Direct for device-to-device connections, Wi-Fi HaLow for low power long range connections, Miracast for cable-free display sharing, ZigBee for mesh networks, and WiMax for high speed wireless broadband.
Ethernet is the traditional technology for connecting wired local area networks (LANs).
this slide describes ethernet its types and other aspects as well as its features
Integrated Services Digital Network (ISDN) is a set of communication protocols that provides digital transmission of voice, video, and data over telephone lines or normal telephone cables. ISDN was developed in the 1970s and provides end-to-end digital connectivity over digital media. ISDN services include bearer services to transfer information between networks, teleservices to allow networks to process content, and supplementary services that provide additional functionality.
A router connects two or more networks and routes packets between them using routing tables. It uses routing algorithms like distance vector or link state to dynamically determine the best paths. As a specialized computer, a router operates at the network layer and can function as a DHCP server, default gateway, and move data between networks through both hardware and software functionality.
ISDN (Integrated Services Digital Network) is a set of communication protocols that allows digital transmission of voice, video, and data over existing telephone lines. It was developed to digitize and integrate telephone networks to allow transmission of different data types. ISDN provides bearer, tele, and supplementary services through basic rate interface (BRI) with 2 B channels of 64 kbps each and 1 D channel of 16 kbps, or primary rate interface (PRI) with 23 B channels of 64 kbps and 1 D channel of 64 kbps. While ISDN provided faster speeds than analog networks, it has been surpassed by newer technologies like DSL and cable that provide even higher speeds at lower costs.
What is a network?
Need for networking
Components of Network
Types of Network
Evolution of Networking
Communication media
Data Communication Terminologies
Switching Techniques
Digital and Analog Transmission
Network Topology
Network Devices
Communication Protocols
Wireless/Mobile Computing
Networking devices connect electronic devices together to share resources and include devices like hubs, switches, routers, and network interface cards. A repeater receives and retransmits signals to extend range without degradation and works at the physical layer. A hub is a multiport repeater that connects multiple wires in a star topology. A bridge connects two networks and works at the data link layer, maintaining a MAC address table to selectively forward data. A switch is an efficient, multi-port bridge that can check for errors and selectively forward packets to the correct port. A router routes packets based on IP addresses and connects LANs and WANs at the network layer.
A network hub connects computers to each other but does not understand the data it transfers. It broadcasts all data packets received from any connected device to all other connected devices, regardless of the intended destination. While hubs are inexpensive and allow multiple devices to connect, they have several disadvantages: they run in half-duplex mode, share bandwidth between ports so each gets a lower speed, and cannot support large networks due to their limited number of ports.
This document discusses different types of networking devices used to connect local area networks (LANs). It describes hubs, repeaters, bridges, routers, and gateways. Hubs and repeaters operate at the physical layer, bridges operate at the physical and data link layers, and routers and gateways operate at the network layer and above to connect multiple networks and perform protocol conversion. The document provides details on the functions and characteristics of each type of device.
This document discusses various network devices and their functions. It describes repeaters, routers, brouters, hubs, switches, bridges, network interface cards (NICs), and gateways. Repeaters operate at the physical layer and regenerate signals to extend network distance. Routers operate at multiple layers and direct traffic between networks by maintaining routing tables. Bridges separate networks into segments to reduce congestion. Switches operate at the data link layer to limit collision domains. NICs connect devices to the network. Gateways connect different network types and protocols.
This Presentation consists of various Network Devices
Hub, Router, Repeater, Bridge, Brouter, Gateway, NIC etc. It is very helpful for B.tech, BCA, MCA, M.Tech students and for those who is interested in networking.
This document compares hubs, switches, and routers. Hubs are the simplest devices that broadcast all incoming data to all ports. Switches are more intelligent and learn which devices are connected to each port to selectively broadcast data. Routers are the most advanced devices that can be programmed to understand and manipulate data, performing functions like network address translation to route packets between local networks and the internet.
This document summarizes different types of computer networks. It discusses local area networks (LANs) that connect devices within a small geographic area like a home or office. Metropolitan area networks (MANs) interconnect LANs within a larger region like a city. Wide area networks (WANs) connect LANs across national and international locations using technologies like fiber optics, radio waves, and satellites. The document also describes wired and wireless connection methods, client-server and peer-to-peer network functionality, common network topologies like bus, star and ring, and protocols such as TCP/IP, IPX/SPX, and AppleTalk.
This document discusses various networking devices used to connect electronic devices and share resources in a computer network. It describes network interface cards (NICs) that provide the physical interface between a computer and cabling. It also covers repeaters that regenerate signals to extend distances, modems that modulate and demodulate signals for internet connections, hubs and switches that connect multiple devices either by broadcasting or selectively forwarding, bridges that segment networks while filtering traffic, and routers that intelligently connect different network types and choose optimal paths between them. The document provides details on the function and layer (physical, data link, network) of operation for each type of networking device.
This document provides information on various network devices including hubs, switches, repeaters, modems, network interface cards (NICs), transceivers, bridges, routers, and firewalls. It describes the basic functions of each device such as how hubs connect multiple devices but don't analyze data, how switches can determine output ports based on IP addresses, and how routers can analyze and direct data between networks. The document also explains technologies like transceivers that combine transmitters and receivers and firewalls that act as barriers between trusted and untrusted networks.
This presentation provides an overview of data communication and networking. It introduces the group members, presentation topic, and defines data communication as the exchange of data between two devices via transmission. It discusses the characteristics, components, transmission modes (simplex, half duplex, full duplex), transmission media (coaxial cable, fiber optic cable, twisted pair cable), signal types (analog, digital), network topologies (mesh, star, bus, ring), and network types (LAN, MAN, WAN). The presentation is delivered by multiple group members, each providing details on several topics.
The document provides an introduction and overview of the internet and the World Wide Web (WWW). It discusses the history and origins of the internet from ARPANET in 1969 to today with over 500 million host nodes. It describes how the internet works through internet service providers (ISPs) and domain names, and how people can connect via dial-up, DSL, cable or wireless. The document also summarizes the key components of the WWW including web browsers, web pages, websites, URLs, hyperlinks, search engines, and the 12 basic types of websites such as portals, news, business, educational, social networks and others.
what is network and what kind of network devices
Network Hub
Network Switch
Modem
Network Router
Bridge
Repeater
try it to believe it
complete presentation for students
This document discusses VLANs and trunking in converged networks. It explains that VLANs logically group devices to segment broadcast domains, reducing costs and improving security and performance. Types of VLAN traffic include data, voice, and network protocols. Communication between VLANs requires routers. Trunks are used for intra-VLAN communication and use 802.1Q tagging to identify frame VLANs, without tagging the native VLAN. The document also covers configuring and troubleshooting VLANs and trunks on Cisco switches.
REDES Y CONECTIVIDAD: ENRUTAMIENTO Y PROTOCOLOS DE ENRUTAMIENTO pptsJavier Navarro
Este documento presenta un capítulo sobre enrutamiento y protocolos de enrutamiento. El capítulo incluye información sobre conceptos básicos de enrutamiento, funciones de los routers, tipos de enrutamiento, protocolos de enrutamiento, configuración y resolución de problemas de rutas estáticas. El documento también proporciona detalles sobre varios estudiantes y el profesor del curso de Derecho Informático.
The document discusses basic networking concepts including defining a local area network (LAN) and wireless LAN, common LAN hardware such as hubs, switches, bridges and routers, typical LAN topologies, common network cabling media such as twisted pair, coaxial, fiber and wireless, Ethernet specifications, and provides sample LAN configurations for a home and business setting. Key points covered include how LANs connect devices within a small area to share resources, the functions of different networking hardware, considerations for choosing network media, and diagramming example implementations.
LAN Switching and Wireless: Ch4 - VLAN Trunking Protocol (VTP)Abdelkhalik Mosa
This document discusses the VLAN Trunking Protocol (VTP). VTP allows network managers to centrally manage VLAN configurations across multiple switches in a domain. It maintains consistency by propagating VLAN changes between switches. The document covers VTP domains, advertisements, modes, pruning, configuration and troubleshooting.
The document discusses various topics related to computer networking including:
1. Networking involves connecting computing devices like PCs and printers to share information and resources using physical or logical connections.
2. Common network models include client-server, peer-to-peer, and domain models.
3. Network topologies describe how network elements are physically connected and include bus, star, ring, tree, mesh, and hybrid topologies.
Networking devices connect electronic devices together to share resources and include devices like hubs, switches, routers, and network interface cards. A repeater receives and retransmits signals to extend range without degradation and works at the physical layer. A hub is a multiport repeater that connects multiple wires in a star topology. A bridge connects two networks and works at the data link layer, maintaining a MAC address table to selectively forward data. A switch is an efficient, multi-port bridge that can check for errors and selectively forward packets to the correct port. A router routes packets based on IP addresses and connects LANs and WANs at the network layer.
A network hub connects computers to each other but does not understand the data it transfers. It broadcasts all data packets received from any connected device to all other connected devices, regardless of the intended destination. While hubs are inexpensive and allow multiple devices to connect, they have several disadvantages: they run in half-duplex mode, share bandwidth between ports so each gets a lower speed, and cannot support large networks due to their limited number of ports.
This document discusses different types of networking devices used to connect local area networks (LANs). It describes hubs, repeaters, bridges, routers, and gateways. Hubs and repeaters operate at the physical layer, bridges operate at the physical and data link layers, and routers and gateways operate at the network layer and above to connect multiple networks and perform protocol conversion. The document provides details on the functions and characteristics of each type of device.
This document discusses various network devices and their functions. It describes repeaters, routers, brouters, hubs, switches, bridges, network interface cards (NICs), and gateways. Repeaters operate at the physical layer and regenerate signals to extend network distance. Routers operate at multiple layers and direct traffic between networks by maintaining routing tables. Bridges separate networks into segments to reduce congestion. Switches operate at the data link layer to limit collision domains. NICs connect devices to the network. Gateways connect different network types and protocols.
This Presentation consists of various Network Devices
Hub, Router, Repeater, Bridge, Brouter, Gateway, NIC etc. It is very helpful for B.tech, BCA, MCA, M.Tech students and for those who is interested in networking.
This document compares hubs, switches, and routers. Hubs are the simplest devices that broadcast all incoming data to all ports. Switches are more intelligent and learn which devices are connected to each port to selectively broadcast data. Routers are the most advanced devices that can be programmed to understand and manipulate data, performing functions like network address translation to route packets between local networks and the internet.
This document summarizes different types of computer networks. It discusses local area networks (LANs) that connect devices within a small geographic area like a home or office. Metropolitan area networks (MANs) interconnect LANs within a larger region like a city. Wide area networks (WANs) connect LANs across national and international locations using technologies like fiber optics, radio waves, and satellites. The document also describes wired and wireless connection methods, client-server and peer-to-peer network functionality, common network topologies like bus, star and ring, and protocols such as TCP/IP, IPX/SPX, and AppleTalk.
This document discusses various networking devices used to connect electronic devices and share resources in a computer network. It describes network interface cards (NICs) that provide the physical interface between a computer and cabling. It also covers repeaters that regenerate signals to extend distances, modems that modulate and demodulate signals for internet connections, hubs and switches that connect multiple devices either by broadcasting or selectively forwarding, bridges that segment networks while filtering traffic, and routers that intelligently connect different network types and choose optimal paths between them. The document provides details on the function and layer (physical, data link, network) of operation for each type of networking device.
This document provides information on various network devices including hubs, switches, repeaters, modems, network interface cards (NICs), transceivers, bridges, routers, and firewalls. It describes the basic functions of each device such as how hubs connect multiple devices but don't analyze data, how switches can determine output ports based on IP addresses, and how routers can analyze and direct data between networks. The document also explains technologies like transceivers that combine transmitters and receivers and firewalls that act as barriers between trusted and untrusted networks.
This presentation provides an overview of data communication and networking. It introduces the group members, presentation topic, and defines data communication as the exchange of data between two devices via transmission. It discusses the characteristics, components, transmission modes (simplex, half duplex, full duplex), transmission media (coaxial cable, fiber optic cable, twisted pair cable), signal types (analog, digital), network topologies (mesh, star, bus, ring), and network types (LAN, MAN, WAN). The presentation is delivered by multiple group members, each providing details on several topics.
The document provides an introduction and overview of the internet and the World Wide Web (WWW). It discusses the history and origins of the internet from ARPANET in 1969 to today with over 500 million host nodes. It describes how the internet works through internet service providers (ISPs) and domain names, and how people can connect via dial-up, DSL, cable or wireless. The document also summarizes the key components of the WWW including web browsers, web pages, websites, URLs, hyperlinks, search engines, and the 12 basic types of websites such as portals, news, business, educational, social networks and others.
what is network and what kind of network devices
Network Hub
Network Switch
Modem
Network Router
Bridge
Repeater
try it to believe it
complete presentation for students
This document discusses VLANs and trunking in converged networks. It explains that VLANs logically group devices to segment broadcast domains, reducing costs and improving security and performance. Types of VLAN traffic include data, voice, and network protocols. Communication between VLANs requires routers. Trunks are used for intra-VLAN communication and use 802.1Q tagging to identify frame VLANs, without tagging the native VLAN. The document also covers configuring and troubleshooting VLANs and trunks on Cisco switches.
REDES Y CONECTIVIDAD: ENRUTAMIENTO Y PROTOCOLOS DE ENRUTAMIENTO pptsJavier Navarro
Este documento presenta un capítulo sobre enrutamiento y protocolos de enrutamiento. El capítulo incluye información sobre conceptos básicos de enrutamiento, funciones de los routers, tipos de enrutamiento, protocolos de enrutamiento, configuración y resolución de problemas de rutas estáticas. El documento también proporciona detalles sobre varios estudiantes y el profesor del curso de Derecho Informático.
The document discusses basic networking concepts including defining a local area network (LAN) and wireless LAN, common LAN hardware such as hubs, switches, bridges and routers, typical LAN topologies, common network cabling media such as twisted pair, coaxial, fiber and wireless, Ethernet specifications, and provides sample LAN configurations for a home and business setting. Key points covered include how LANs connect devices within a small area to share resources, the functions of different networking hardware, considerations for choosing network media, and diagramming example implementations.
LAN Switching and Wireless: Ch4 - VLAN Trunking Protocol (VTP)Abdelkhalik Mosa
This document discusses the VLAN Trunking Protocol (VTP). VTP allows network managers to centrally manage VLAN configurations across multiple switches in a domain. It maintains consistency by propagating VLAN changes between switches. The document covers VTP domains, advertisements, modes, pruning, configuration and troubleshooting.
The document discusses various topics related to computer networking including:
1. Networking involves connecting computing devices like PCs and printers to share information and resources using physical or logical connections.
2. Common network models include client-server, peer-to-peer, and domain models.
3. Network topologies describe how network elements are physically connected and include bus, star, ring, tree, mesh, and hybrid topologies.
This document contains 4 names: Eder Roman Arasil Cristina Bielsa Latre. It appears to be a list of names but provides no other context or information.
1. Cristina Bielsa Latre i Eder Roman Arasil 14/09/2011
Tema 1: Introducció a les xarxes informàtiques
DEFINICIÓ:
Una xarxa d’àrea local, també coneguda com a LAN (Local Area Network),
és un conjunt d’ordinadors i dispositius de maquinari units entre ells amb
l’objectiu de compartir recursos en una zona geogràfica limitada.
Exemple: Xarxa informàtica en una llar.
Ordinador de
PDA saló Televisor
Ordinador
Consola de joc
Router sense fil
Impressora
Camera
Ordinador wifi
Telèfon IP portàtil
Tallafoc
Línia telefònica
Internet portàtil
2. Cristina Bielsa Latre i Eder Roman Arasil 14/09/2011
TIPUS:
• Bus: Els ordinadors surten d’un punt centrar.
• Anell: Els ordinadors que componen la xarxa formen un anell.
• Estrella: Els ordinadors es connecten a través d’un dispositius que
forma el nucli de la xarxa. Són les més utilitzades.
• Cel·lular: La xarxa es compon d’àrees circulars. Exemple: les xarxes
sense fil.
BUS ANELL
ESTRELLA CEL·LULAR
3. Cristina Bielsa Latre i Eder Roman Arasil 14/09/2011
DISPOSITIUS DE GESTIÓ DE XARXA:
• Adaptadors de xarxa: Connecten l’equip amb altres dispositius
encarregats de dirigir el trànsit de la xarxa. Exemples: Acoblat a
l’equip, Tipus PCI, Tipus USB, Tipus PCMCIA.
• Concentrador (hub): Actua com un simple enllaç i
transmet totes les dades per tots els seus ports.
• Commutador (switch): Llegeix la informació que li
arriba i la redirigeix només a l’equip que l’ha de rebre i
no pas a tots els que formen la xarxa.
4. Cristina Bielsa Latre i Eder Roman Arasil 14/09/2011
• Router: Comunica xarxes entre si. Determina
quines dades surten de la xarxa d’àrea local i cap
a on, i quines altres dades s’han de quedar dins, ja
que van dirigides a equips de la mateixa xarxa.
• Pont: Permet dividir una xarxa en diferents
segments o unir dues xarxes que utilitzen un mateix
sistema (protocol) de comunicació, per facilitar la
gestió i disminuir el trànsit, sobretot en xarxes molt
grans.
• Punt d’accés: Es un tipus de pont. Podem dir que
és “el Concentrador” utilitzat en xarxes sens fil.
• Repetidor: Repeteix i amplifica el senyal per
ampliar-lo l’abast.
• Passarel·la: És un tipus de pont” intel·ligent” que
uneix dues xarxes amb diferents tecnologies. Pot ser
de tipus maquinari o programari.
• Servidor d’impressió: Permet connectar una
impressora a una xarxa, de manera que podem
imprimir des de qualsevol equip connectat a la
xarxa.
5. Cristina Bielsa Latre i Eder Roman Arasil 14/09/2011
MITJANS DE DIFUSIÓ DE DADES:
Els mes usuals són:
• El cable de coure de parells trenats: Es basa en la tecnologia
Ethernet, amb connectors RJ45. Es fàcil d’usar i per això es fa
servir en xarxes domestiques i empreses. La informació es
transmet mitjançant impulsos elèctrics pels cables.
• El cable coaxial: Té un nucli de coure envoltat per una capa aïllant
i una malla metàl·lica que evita les interferències. Tal com passa
amb el cable de parells trenats, es transmeten impulsos elèctrics
pels cables.
• El cable de fibra òptica: La informació es transmet mitjançant
petits impulsos de llum. Es el mitjà mes ràpid, però també es el mes
car.
• El mitja sense fil: La tecnologia mes utilitzada és la wifi (Wireless
Fidelity). La informació es transmet per mitjà d’ones de radio.
L’estàndard més usat és 802.11 g.
Programari
Tarjeta de xarxa
Servidor d’impressió Els cables de xarxa
Port
6. Cristina Bielsa Latre i Eder Roman Arasil 14/09/2011
Configuració de la xarxa. Protocols TCP/IP:
Adreça MAC:
Perquè un ordinador es pugui connectar a una xarxa cal que tingui un
dispositiu que “tradueixi” les ordres que s’intercanvien entre l’ordinador i el
mitjà : cable, fibra o mitjà sense fil. D’això se n’encarrega l’adaptador de
xarxa.
A cada adaptador de xarxa se li assigna de fàbrica un número , o adreça
MAC, que li identifica de forma unívoca.
Protocols de comunicació:
El protocol TCP/IP és el més utilitzat per configurar una LAN. Com ja saps,
TCP)IP també es coneix com el protocol Internet.
Identificació d’equips: adreces IP:
Adreça IP: Correspon a l’adreça de l’equip dins la xarxa. Es compon de dues
parts: l’adreça de xarxa i l’adreça de host.
Màscara de subxarxa: es tracta d’un altre conjunt de quatre octets binaris
que indiquen quina part de l’adreça IP de l’equip correspon a la xarxa i quina
a l’ordinador.
ACTIVITATS
1. Què succeeix en una xarxa en anell quan un ordinador deixa de
funcionar? Se t’acut cap situació en què resulti útil aturar el
funcionament de la xarxa després que s’hagi avariat un dels
terminals que hi estan connectats?
Que quan es trenca un tots els altres deixen de funcionar. Quan en
una xarxa en anell un ordinador té un virus.
2. Pensa i respon:
7. Cristina Bielsa Latre i Eder Roman Arasil 14/09/2011
A) Quina topologia fa servir una xarxa formada per un router al
qual es connecten dos ordinador de sobretaula, un portàtil,
i una consola de joc?
Xarxa en forma d’estrella
B) Per què una xarxa cel·lular està formada per esferes?
Una xarxa cel·lular és una xarxa wifi.
3. Quina es la diferència entre un concentrador i un commutador?
La diferència que hi ha entre un concentrador i un commutador és que
el concentrador actua com un simple enllaç i transmet totes les dades
per tots els seus ports, mentre que el commutador llegeix la informació
que li arriba i la redirigeix només a l’equip que l’ha de rebre i no pas a
tots els que formen la xarxa.
4. Quan vulguem un alt rendiment en la transmissió de les dades,
què escollirem, un commutador o un concentrador? Per què?
Escollirem un concentrador perquè ens assegura que la informació la
rebrà tots els ordinadors.
5. Dibuixa l’esquema d’una xarxa amb un router, un ordinador de
sobretaula, un portàtil i una consola de joc.
8. Cristina Bielsa Latre i Eder Roman Arasil 14/09/2011
6. Calcula el temps que fa falta per transmetre la informació
continguda en un DVD (4,7 GB). Recorda que 1 GB (gigabyte) equival a 8
Gb (gigabit).
a) Mitjançant un cable de xarxa que permet una velocitat de 100 Mb/s.
4,7 GB · 8 Gb
= 37,6 Gb
1GB
37.6 Gb · 1024 Mb
= 38502,4Mb
1Gb
38502,4 Mb · 1s
= 385,02 segons
100Mb
b) Mitjançant un cable de xarxa que permet una velocitat d’ 1 Gb/s.
4,7 GB · 8 Gb
= 37,6 Gb
1GB
37.6 Gb · 1s
= 37.6 segons
1Gb
c) Mitjançant una connexió sense fil que admet una velocitat màxima de
54 Mb/s.
4,7 GB · 8 Gb
= 37,6 Gb
1GB
37.6 Gb · 1024 MB
= 38502,4
1Gb
9. Cristina Bielsa Latre i Eder Roman Arasil 14/09/2011
38502,4 · 1s
= 687,54 segons
56 Mb
7. Esbrina quines són les característiques dels routers que ofereixen les
diferents companyies proveïdores d’accés a Internet: tipus de connexió,
velocitats de transmissió de dades, preu, abast, etc.
Indica quina seria la millor solució per al nostre projecte.
Vodafone ADSL: Costa 34,9 € al mes, va a una velocitat de 12 Mb, connexió
inal·làmbrica.
Jazztel ADSL: Costa 19,95 al mes, va a una velocitat de 20 Mb i té una
connexió inal·làmbrica.
ONO ADSL: Costa 29,95 al mes, va a una velocitat de 3 Mb i té una connexió
inal·làmbrica.
18. Busca a Internet routers tres routers que facin servir les companyies
per a la provisió d’accés a Internet. Crea una taula amb les seves
característiques bàsiques:
Telefònica: ADSL 6Mb 29.9 €/mes (12 mesos) Té port wifi.
Orange: ADSL 6Mb 10.00 €/mes (en els 3 primers mesos) 24.95 €/mes Té
port wifi.
ONO: ADSL 6 Mb 39.90 €/mes (12 mesos) No té port wifi.
a) Tenen ports Ethernet? Sí.
b) Són wifi? Si.
19. Per què és més eficient un commutador que un concentrador?
Perquè un commutador redirigeix la informació que li arriba només a l’equip
que l’ha de rebre i no pas a tots els que formen la xarxa com fa el
concentrador.
10. Cristina Bielsa Latre i Eder Roman Arasil 14/09/2011
20. Identifica-hi els components.
a) Quin dispositiu creus que és el de la imatge? Un router
b) Per què? Perquè te una connexió RTB RJ11 y també Ports Enthernet
RJ45
22. Transforma els nombres decimals següents al sistema binari:
2, 4, 8, 16, 32, 64-> 2: 01 4:001 8:0001 16:00001 32:000001 64: 0000001
11. Cristina Bielsa Latre i Eder Roman Arasil 14/09/2011
PROJECTE
Despatx:
• Router TP-LINK 4 PUERTOS (43,15 euros)
• PORTATIL PACKARD BELL (702,48 euros)
• Ordinador de sobretaula (259,00 euros )
• Impressora (286,78 euros)
• Línia telefònica i internet (24,90 euros)
• Telèfon fix (21, 95 euros)
• Cable 4 metres ( 3,80 €)
12. Cristina Bielsa Latre i Eder Roman Arasil 14/09/2011
Habitació 1:
• Ordinador de sobretaula (259,00)
• Pen wi-fi (15 euros)
Menjador :
• Ordinador portàtil (254,63 euros)
• Pen wi-fi (15 euros)
• Telèfon fix (24,90 euros)
• Ordinador se saló (45 euros)
13. Cristina Bielsa Latre i Eder Roman Arasil 14/09/2011
Habitació 2 :
• Servidor (450 euros)
• Impressora (286,78 euros)
• Ordinador de sobretaula (259,00 euros)
• Ordinador de sobretaula (259,00 euros)
• Cable 6 m (5,70 €)
ADREÇA DE L’ORDINADOR IP: 192.168.018