routing and switching exam certification guide

... the routing of information and methods to determine paths to a destination. Information at this layer is called packets. Specifications include routing protocols, logical network addressing, and ... frame, and places a frame on Ethernet 2 (data link). Host 2 receives bits (physical) from the Ethernet cable and converts the bits into a frame (data link). Then, the IP protocol is examined and ... Routers operate in this layer. The CCIE lives and dies in this layer. Examples of network layer specifications are the following: • Internet Protocol (IP) • Routing Information Protocol (RIP) • Open

Ngày tải lên: 20/01/2014, 01:20

... CCIE Routing and Switching Exam Certification Guide A. Anthony Bruno, CCIE #2738 CCIE.book Page i Friday, June 14, 2002 3:57 PM ii CCIE Routing and Switching Exam Certification Guide ... difficult and rewarding of the internetworking industry This book covers all exam objectives for the CCIE Routing and Switching. .. the CCIE Routing and Switching (R&S) written exam: ... matter, topic summaries, and practice and review questions that test the comprehensive networking knowledge expected, the CCIE Routing and Switching Exam Certification Guide can greatly assist

Ngày tải lên: 20/01/2014, 01:20

... button on your device or app Trang 33Trang 4CCNA Routing and SwitchingPortable Command Guide Trang 5CCNA Routing and Switching Portable Command Guide All rights reserved No part of this book may ... service mark Warning and Disclaimer This book is designed to provide information about the Certified Cisco Networking Associate (CCNA) Routing andSwitching exam and the commands needed at this ... Command The logging synchronous Command The exec-timeout Command Saving Configurations Erasing Configurations show Commands EXEC Commands in Configuration Mode: The do Command Configuration Example:

Ngày tải lên: 22/07/2019, 23:19

... Standby command you ure for the interface config-Active Router Virtual Router Standby Router HSRP Group HSRP CCIE Routing and Switching Exam Quick Reference Sheets CCIE Routing and Switching Exam ... STP and theexact reason for IEEE’s creation of new versions of the protocol Lowest BID Root Bridge RP RP CCIE Routing and Switching Exam Quick Reference Sheets CCIE Routing and Switching Exam ... compatibilityreasons between Ethernet networks and Token Ring CCIE Routing and Switching Exam Quick Reference Sheets CCIE Routing and Switching Exam Quick Reference Sheets By Anthony Sequeira

Ngày tải lên: 17/11/2019, 08:31

... time you take the lab exam Develop Confidence and Self-Control You can know every IOS command, know every CatOS command and understand every possible protocol, yet fail the exam because you mismanaged ... step-by-step example: You need to use the global command frame-relay switching to enable frame-relay switching This is the only global command you need All the rest are interface commands The next command ... book the exam, where the exams are held, and how much the exam costs You should frequently check the appropriate web sites because this is, after all, the official source of information Exam Description

Ngày tải lên: 24/01/2014, 19:20

... 3Packet Guide to Routing and SwitchingTrang 5Packet Guide to Routing and SwitchingBruce Hartpence Beijing • Cambridge • Farnham • Köln • Sebastopol • Tokyo Trang 6Packet Guide to Routing and Switchingby ... Nutshell Handbook, the Nutshell Handbook logo, and the O’Reilly logo are registered trademarks of O’Reilly Media, Inc Packet Guide to Routing and Switching, the image of the tailor bird, and related ... publisher, and ISBN For example: “Packet Guide to Routing and Switching by Bruce Hartpence (O’Reilly) Copyright 2011 Bruce Hartpence, 978-1-449-30655-7.” If you feel your use of code examples falls

Ngày tải lên: 31/05/2014, 01:10

... necessary for the CCNA exams, but it also helps you in a job as a network engineer So, in this chapter, you will learn about bridges and switches and how they are both similar and different You will ... marketplace long before switches And because switches act like bridges in many ways, it helps your understanding of switches to first understand how bridges work and why they were created in the ... accurate forwarding and filtering decisions Bridges build the bridge table by listening to incoming frames and examining the source MAC address in the frame If a frame enters the bridge and the source

Ngày tải lên: 13/08/2014, 13:21

... Link Switching (DLSw) and DLSw+ 20 Source-Route Transparent Bridging (SRT) and Source-Route Translational Bridging (SR/TLB) 20 LAN Switching 21 Routing and Switching ... Policy Routing 45 Redistribution 45 Route-Tagging 45 Routing and Switching Written Qualification Exam (350-001) Dial-on-Demand Routing ... upgradeable Routing and Switching Written Qualification Exam (350-001) Multiservice Voice/Video Voice and Video can be digitized and passed though a normal IP network as long as sufficient bandwidth

Ngày tải lên: 12/10/2016, 13:02

... Indianapolis, IN 46240 CCNA Wireless Official Exam Certification Guide Brandon James Carroll Trang 3CCNA Wireless Official Exam Certification GuideBrandon James Carroll Copyright© 2009 Cisco Systems, ... Data: Carroll, Brandon CCNA wireless official exam certification guide / Brandon James Carroll p cm ISBN 978-1-58720-211-7 (hbk : CD-ROM) 1 Wireless LANs Examinations Study guides 2 Electronic ... Understanding the Free Path Loss Model 35 Understanding Absorption 36 Understanding Reflection 38 Understanding Multipath 39 Understanding Scattering 39 Understanding Refraction 40 Understanding

Ngày tải lên: 04/07/2014, 18:20

... Understanding Roaming 210 Understanding Mobility Groups 210 Types of Roaming 212 The Layer 2 Roaming Process 215 The Layer 3 Roaming Process 216 xii CCNA Wireless Official Exam Certification Guide ... for Final Preparation 431 Exam Engine and Questions on the CD 431 Install the Software from the CD 432 Activate and Download the Practice Exam 432 Activating Other Exams 433 Cisco Learning Network ... Wireless Official Exam Certification Guide 00_1587202115_fm.qxd 9/29/08 2:42 PM Page xviii Icons Used in This Book Command Syntax Conventions The conventions used to present command syntax in this

Ngày tải lên: 04/07/2014, 18:20

... be an enriching and useful part of your exam preparation. Erik Ullanderson Manager, Global Certifications Learning@Cisco May 2008 xx CCNA Wireless Official Exam Certification Guide 00_1587202115_fm.qxd ... the modern enterprise network. Cisco Press exam certification guides and preparation materials offer exceptional—and flexible—access to the knowledge and information required to stay current in ... CCNA Wireless Official Exam Certification Guide is an excellent self-study resource for the Cisco IUWNE (640-721) exam. Passing the IUWNE exam validates the knowl- edge and skills required to

Ngày tải lên: 04/07/2014, 18:20

... 12 CCNA Wireless Official Exam Certification Guide 5 GHz The 5-GHz range is used by the 802.11a standard and the new 802.11n draft standard. In the 802.11a standard, data rates can range from ... number of small-bandwidth subcarriers. The channels are 20 MHz, and the subcarriers are 02_1587202115_ch01.qxd 9/29/08 2:43 PM Page 15 16 CCNA Wireless Official Exam Certification Guide 0-Degree ... Europe, and Japan 10 Figure 1-2 The 2.4-GHz channels 11 Figure 1-3 Understanding chipping sequences 13 Table 1-3 DSSS encoding methods 14 Figure 1-5 Phase-shift encoding and how it works 16 Exam

Ngày tải lên: 04/07/2014, 18:20

... Broadband Wireless Access Standards Note: You can find the Wireless Standards Zone at http://standards.ieee.org/wireless/ and an overview of the aforementioned working groups at http://standards.ieee.org/wireless/ ... could drop the transmit power by 1 dBm and increase the gain by 1 dBm and still stay within the guidelines Table 2-4 compares the Cisco standards to the ETSI standards for EIRP The table shows the ... ETSI as an official European Standards Organization Many of the mandates for wireless usage come from the EC Then, ETSI defines various standards based on these mandates According to the ETSI

Ngày tải lên: 04/07/2014, 18:20

... for the same wavelength and the same frequency Amplitude is the quantity or amount of energy that is put into a signal Folks like the FCC and European Telecommuni-cations Standards Institute (ETSI) ... plan and adjust your deployment accordingly In this section, you learn about the Free Path Loss model, ab-sorption, reflection, scattering, multipath, refraction, and line of sight Understanding ... 10Figure 3-8 Directional Antennas and Line of SightCurvature of the earth Figure 3-9 Directional Antennas and LOS with Obstructions Note: You can find a neat Java-based example of refraction at http://www.phy.hk/wiki/

Ngày tải lên: 04/07/2014, 18:20

... overcome this For example, for a 2.4-GHz system, at 7 miles you need to have the anten-nas mounted at 45 to 50 feet Although this is just an example, the numbers are pretty close, and at least you ... Budget Link budget is a value that accounts for all the gains and losses between sender and re-ceiver, including attenuation, antenna gain, and other miscellaneous losses that might oc-cur This can ... Technologies and Topologies When you work in a wireless network, you can encounter a number of technologies and deployment options Sometimes your situation calls for a peer-to-peer connection, and other

Ngày tải lên: 04/07/2014, 18:20

... WPANs usually fall into the unlicensed 2.4-GHz spectrum and are standardized by the 802.15 IEEE workgroup A WPAN study group was formed in 1998, and two months later a Bluetooth Special Interest Group ... 802.11a, have followed Now the 802.11a, b, g, and n WLAN standards are commonly found in networks around the world The frequency spectrums used by 802.11a/b, g, and n are all unlicensed Trang 3Because ... makes WLANs flexible is the fact that the APs and clients are dual-band This makes it easy to deploy different transmission methods in different areas, and most clients can still operate WMAN A wireless

Ngày tải lên: 04/07/2014, 18:20

... Official Exam Certification Guide E-Plane H-Plane *This figure is based on an original image from the Wikipedia entry: http://en.wikipedia.org/wiki/E-plane_and_H-plane Figure 5-5 H-plane and E-plane ... section “Antenna Connectors and Hardware.” Figure 5-11 AIR-ANT2506 Key Topi c 06_1587202115_ch05.qxp 9/29/08 2:45 PM Page 79 80 CCNA Wireless Official Exam Certification Guide Figure 5-12 AIR-ANT24120 ... below the AP. 06_1587202115_ch05.qxp 9/29/08 2:45 PM Page 73 74 CCNA Wireless Official Exam Certification Guide –35 –30 –25 –20 –15 –10 –5 0 30330 60300 90270 120 240 150210 180 Figure 5-3 H-plane

Ngày tải lên: 04/07/2014, 18:20

... are within government guidelines for EIRP Other vendors use connectors such as the Subminiature version A (SMA) and its variants, the RP-SMA and SMA-RS You also find MC and MMCX connectors on ... least the section for this chapter, and complete the tables and lists from memory Appendix C, “Memory Tables Answer Key,” also on the CD, includes completed tables and lists so that you can check ... antenna offered by Cisco This yagi is a high-gain antenna at 13.5 dBi Its H-plane and E-plane are shown in Figures 5-20 and 5-21, respectively Table 5-6 shows the details of the AIR-ANT1949 yagi Key

Ngày tải lên: 04/07/2014, 18:20