By Stephen McQuerry
Filenote: PDF is retail-like quality
Publish yr note: First released in 2007
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Interconnecting Cisco community units, half 1 (ICND1), Second Edition, is a Cisco®-authorized, self-paced studying software for CCENT™ and CCNA® starting place studying. This e-book will give you the information had to configure Cisco switches and routers to function in company internetworks. by way of interpreting this booklet, you'll achieve a radical realizing of strategies and configuration techniques required to construct a multiswitch, multirouter, and multigroup internetwork that makes use of LAN and WAN interfaces for the main customary routing and routed protocols.
In Interconnecting Cisco community units, half 1 (ICND1), you are going to research install and configuration info that community directors have to set up and configure Cisco items. particular subject matters comprise development an easy community, Ethernet LANs, instant LANs (WLANs), LAN and WAN connections, and community administration. Chapter-ending assessment questions illustrate and aid solidify the suggestions offered within the book.
even if you're getting ready for CCENT or CCNA certification or just are looking to achieve a greater figuring out of ways to construct small Cisco networks, you are going to enjoy the beginning info provided during this book.
Interconnecting Cisco community units, half 1 (ICND1), is a part of a suggested studying course from Cisco that comes with simulation and hands-on education from licensed Cisco studying companions and self-study items from Cisco Press. to determine extra approximately instructor-led education, e-learning, and hands-on guideline provided through approved Cisco studying companions all over the world, please stopover at www.cisco.com/go/authorizedtraining.
Steve McQuerry, CCIE® No. 6108, is a consulting platforms engineer with Cisco. He specializes in information middle structure. Steve works with firm buyers within the Midwestern usa to aid them plan their info middle architectures. Steve has been an energetic member of the internetworking group seeing that 1991 and has held a number of certifications from Novell, Microsoft, and Cisco. ahead of becoming a member of Cisco, Steve labored as an self sustaining contractor with international wisdom the place he taught and constructed coursework round Cisco applied sciences and certifications.
• comprehend the foundations on which easy networks operate
• discover the operation and configuration of LANs
• expand the limits of the community via imposing and securing instant connectivity
• Configure routers to supply connectivity among assorted networks
• find out about IP addressing quantity conversion
• identify WAN interconnectivity utilizing point-to-point hyperlinks, DSL, and cable services
• Configure community deal with Translation (NAT)
• Use Cisco IOS® instructions to figure out the format of a Cisco community topology
• deal with the router startup and paintings with IOS configuration documents and Cisco IOS images
This quantity is within the Certification Self-Study sequence provided by way of Cisco Press®. Books during this sequence supply formally built self-study suggestions to aid networking pros comprehend know-how implementations and get ready for the Cisco occupation Certifications examinations.
Read Online or Download Interconnecting Cisco Network Devices, Part 1 (ICND1): CCNA Exam 640-802 and ICND1 Exam 640-822 (2nd Edition) (Self-Study Guide) PDF
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Extra resources for Interconnecting Cisco Network Devices, Part 1 (ICND1): CCNA Exam 640-802 and ICND1 Exam 640-822 (2nd Edition) (Self-Study Guide)
Example text
Exploring the Functions of Networking Figure 1-13 shows the connections in a full-mesh topology. Figure 1-13 Full-Mesh Topology Partial-Mesh Topology In a partial-mesh topology, at least one device maintains multiple connections to all other devices, without having all other devices fully meshed. This method trades off the cost of meshing all devices by allowing the network designer to choose which nodes are the most critical and appropriately interconnect them. Figure 1-14 shows an example of a partial-mesh topology.
Figure 1-16 Closed Network Frame Relay Leased Remote Site PSTN Leased Line As previously mentioned, one of the challenges to security is that hacking a network has become easier for those with little or no computer skills. Figure 1-18 illustrates how the increasing sophistication of hacking tools and the decreasing skill needed to use these tools have combined to pose increasing threats to open networks. 23 Mobile and Remote Users Remote Site Mobile and Remote Users Dial Up Remote Site Internet Partner Site Internet Figure 1-17 Internet 24 Chapter 1: Building a Simple Network Open Network Securing the Network Figure 1-18 Hacking Skills Matrix High Packet Forging/Spoofing Stealth Diagnostics Scanners Sophistication of Hacker Tools Sniffers Back Doors Hijacking Sessions Exploiting Known Vulnerabilities Disabling Audits Self-Replicating Code Password Cracking Technical Knowledge Required Password Guessing Low 1980 1990 2000 With the development of large open networks, security threats have increased significantly in the past 20 years.
Therefore, as the data moves down through the layers of the OSI reference model, each OSI layer adds a header (and a trailer, if applicable) to the data before passing it down to a lower layer. The headers and trailers contain control information for the network devices and receiver to ensure proper delivery of the data and to ensure that the receiver can correctly interpret the data. Figure 1-21 illustrates how encapsulation occurs. It shows the manner in which data travels through the layers.