Post on 02-Jun-2018
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Certificaciones CCENT y CCNA Routing & Switching:
Tipos de pregunta del examen CCNA (ICND1 e ICND2):
Multiple-choice (MC) single answer
Multiple-choice (MC) multiple answer Testlet
Drag-and-drop (DND)
Simulated lab (Sim)
Simlet
www.cisco.combuscarexam tutorial.
Lunes: Networking Basic: Enfoque al Funcionamiento de redes IP:
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Recognize the purpose and functions of various network devices such as Routers,
Switches, Bridges and Hubs.
Select the components required to meet a given network specification.
Identify common applications and their impact on the network
Describe the purpose and basic operation of the protocols in the OSI and TCP/IP
models.
Los 5 pasos de la encapsulacin de los datos: TCP/IP
Step 1. Create and encapsulate the application data with any require d application layer
headers. For example, the HTTP OK message can be returned in an HTTP header, followed
by part of the contents of a web page.
Step 2.Encapsulate the data supplied by the application layer inside a transport layer header.
For end-user applications, a TCP or UDP header is typically used.
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Step 3.Encapsulate the data supplied by the transport layer inside a networklayer (IP)
header. IP defines the IP addresses that uniquely identify each computer.
Step 4. Encapsulate the data supplie d by the ne twork laye r inside a data link layer header
and trailer. This layer uses both a header and a trailer.
Step 5.Transmit the bits.The physical layer encodes a signal onto the medium to transmit the
frame.
Identify the appropriate media, cables, ports, and connectors to connect Cisco
network devices to other network devices and hosts in a LAN.
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Clasificacin de dispositivos segn capas del modelo OSI:
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Resumen de los beneficios de trabajar bajo modelos:
Less complex.
Standard interfaces.
Easier to learn.
Easier to develop.
Multivendor interoperability.
Modular engineering.
Encapsulation Terminology
c
OSI Encapsulation and Protocol Data Units
Encapsulation and Databased TCP/IP
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Fundamentals of LAN
Ethernet
A series of LAN standards defined by the IEEE, originally invented by Xerox Corporation and
developed jointly by Xerox, Intel, and Digital Equipment Corporation.
Typical Small Ethernet-Only SOHO LAN
Single -Building Enterprise Wired and Wireless LAN
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Examples of Types of Ethernet Examples of Types of Ethernet
Crossover cable : If the endpoints transmit on the same pin pair
Straight-through cable : If the endpoints transmit on different pin pairs
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Ethernet Data Link Protocols
Commonly Used Ethernet Frame Format
Field of the frame:
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Use of Ethernet Type Field
LAN Switching Concepts
Bridge Create s Two Collision Domains and Two Shared Ethernets
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Switch Creates Four Collision Domains and Four Ethernet Segments
Sample Switch Forwarding and Filtering Decision
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Network with Redundant Links but Without STP: The Frame Loops Forever
Switch Internal Processing
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Fundamentals of WANs
Leased Lines
Ethernet as a Wan Technology
Accessing the Internet
Positioning Leased Lines with LANs and Routers
Small Enterprise Network with One Leased Line
Encapsulacin PPP y HDLC
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Etherne t as a WAN Technology
Fiber Ethernet Link to Connect a CPE Router to a Service Providers WAN
EoMPLS Acting Like a Simple Ethernet Link Between Two Routers
MPLS: Multiprotocol Label Switching
EoMPLS: Ethernet emulation and Ethernet over MPLS
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Design Choices in Ethernet LANs
Collision Domains, Broadcast Domains and VLANs
Collision Domains
Corresponde a un segmento fsico de una red, donde las tramas pueden producir una
colisin.
Broadcast Domains
Corresponde a un rea lgica que abarca un mensaje de tipo broadcast enviado por un
dispositivo.
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Virtual LANs (VLAN)
Campus LAN with Design Terminology Listed
Access:Provides a connection point (access) for end-user devices. Does not forward
frames between two other access switches under normal circumstances.
Distribution:Provides an aggregation point for access switches, forwarding frames
between switches, but not connecting directly to end-user devices.
Core:Aggregates distribution switches in very large campus LANs, providing very
high forwarding rates.
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Speed:Use your slowest supported speed (often 10 Mbps).
Duplex:If your speed = 10 or 100, use half-duplex; otherwise, use full-duplex.
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LAN Switching Technologies
Cisco Catalyst enterprise-class switches
Console Connection to a Switch
CLI Password Configuration: Console and Telnet
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Key Sequence s for Command Edit and Recall
CLI Configuration Mode Versus EXEC Modes
Cisco Switch Memory Types
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Configuring Ethernet Switching
IP Routing Technologies: Configure SVI interfaces
Network Device Security:
Device password security
Enable secret vs enable password
SSH
VTYs
Service password
Describe external authentication method
Configure and verify Switch Port SecuritSticky MAC
MAC address limitation
Static / dynamic
Violation modes
Err disable
Shutdown
Protect restrict
Shutdown unused ports
Err-disable recovery
Assign unused ports to an unused VLAN
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Basic Authentication Process with an External AAA Server.
Banners and Their Use:
Banner motd: SW(CONFIG)#banner motd #MENSAJE
Banner login: SW(CONFIG)#banner login #MENSAJE
Banner exec: SW(CONFIG)#banner exec #MENSAJE
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LAN Switch Configuration and Operation
IP for remote access
Interface configuration (including speed and duplex)
Port security
Securing unused switch interfaces
Switch Virtual Interface (SVI) Concept Inside a Switch
Emma# configure terminal
Emma(config)# interface vlan 1
Emma(config-if)# ip address 192.168.1.8 255.255.255.0
Emma(config-if)# no shutdown
00:25:07: %LINK-3-UPDOWN: Interface Vlan1, changed state to up
00:25:08: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1,changed
state to up
Emma(config-if)# exit
Emma(config)# ip default-gateway 192.168.1.1
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Determine the technology and media access control method for Ethernet networks
Identify basic switching concepts and the operation of Cisco switches.
Collision Domains
Broadcast Domains
Types of switching
CAM Table
Configure and verify initial switch configuration including remote access
management.
Cisco IOS commands to perform basic switch setup
Verify network status and switch operation using basic utilities such as ping, telnetand ssh.
Describe how VLANs create logically separate networks and the need for routing
between them.
Explain network segmentation and basic traffic management concepts
Configure and verify VLANs
Configure and verify trunking on Cisco switches
DTP
Auto negotiation
Martes:
- Direccionamiento IP (Ipv4/Ipv6).
- Tecnologas de enrutamiento IP.
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Miercoles:
- Servicios IP
- Dispositivos de seguridad de red
Jueves:
- Troubleshooting
- Preguntas de OSPF