CCNA Exploration Course Booklet: Routing Protocols and by Cisco Networking Academy

By Cisco Networking Academy

The Cisco CCNA Exploration curriculum presents a entire review of networking, from basics to complicated functions and providers. This path emphasizes theoretical options and functional program, providing you with hands-on talents for designing, fitting, working, and retaining real-world networks. whereas wide on-line research assets and accomplished textbooks can be found, many scholars and teachers have asked a inexpensive revealed source that may be used to review in locations the place net entry is probably not on hand. This book is that source. Drawn at once from the web curriculum, it covers each ability and competency lined within the most recent CCNA Exploration Routing Protocols and ideas direction. This e-book allows you to research offline, spotlight key issues, and take handwritten notes. All subject matters are correlated on to on-line websites, assisting you simply swap among offline and on-line content material.


  • Gives CCNA Exploration scholars a cheap learn source that may be learn at any place web entry is not on hand
  • Handy revealed structure helps you to simply spotlight and make notes
  • Page correlations hyperlink on to the web curriculum
  • Covers the most recent model of the CCNA Exploration Routing Protocols and ideas course

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Additional resources for CCNA Exploration Course Booklet: Routing Protocols and Concepts, Version 4.0

Sample text

Qxp 8/25/09 10:17 AM Page 37 Chapter 2: Static Routing 37 A different connector is used in an Ethernet-based LAN environment. An RJ-45 connector for the unshielded twisted-pair (UTP) cable is the most common connector used to connect LAN interfaces. At each end of an RJ-45 cable, you should be able to see eight colored strips, or pins. An Ethernet cable uses pins 1, 2, 3, and 6 for transmitting and receiving data. Two types of cables can be used with Ethernet LAN interfaces: ■ A straight-through, or patch cable, with the order of the colored pins the same on each end of the cable ■ A crossover cable, with pin 1 connected to pin 3, and pin 2 connected to pin 6 Straight-through cables are used for: ■ Switch-to-router ■ Switch-to-PC ■ Hub-to-PC ■ Hub-to-server Crossover cables are used for: ■ Switch-to-switch ■ PC-to-PC ■ Switch-to-hub ■ Hub-to-hub ■ Router-to-router ■ Router-to-server Note: Wireless connectivity is discussed in another course.

It is very likely that the packet will be encapsulated in a different type of Layer 2 frame than the one in which it was received. For example, the packet might be received by the router on a FastEthernet interface, encapsulated in an Ethernet frame, and forwarded out a serial interface encapsulated in a PPP frame. Remember, as a packet travels from the source device to the final destination device, the Layer 3 IP addresses do not change. However, the Layer 2 data link addresses change at every hop as the packet is decapsulated and re-encapsulated in a new frame by each router.

Config t Router#c Next, apply a unique hostname to the router. hostname R1 Router(config)#h R1(config)# Now, configure a password that is to be used to enter privileged EXEC mode. In our lab environment, we will use the password class. qxp 8/25/09 10:25 AM Page 17 Chapter 1: Introduction to Routing and Packet Forwarding 17 strong passwords. See the links at the end of this section for more information on creating and using strong passwords. enable secret class Router(config)#e Next, configure the console and Telnet lines with the password cisco.

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