cisco network academy program ccna version 5 0 download

... www.ciscopress.com 1102.book Page i Tuesday, May 20, 2003 2:53 PM Trang 2Cisco Networking Academy Program CCNA 1 and 2 Companion Guide Third Edition Cisco Systems, Inc. Cisco Networking Academy Program ... 1Cisco Networking Academy Program CCNA 1 and 2 Companion Guide Third Edition Cisco Systems, Inc Cisco Networking Academy Program Cisco Press 201 West 103rd Street Indianapolis, Indiana 46290 ... Communications 154 Wireless Data Communications 154 1102.book Page ix Tuesday, May 20, 2003 2:53 PM Trang 10Wireless Signal 155 Radio Frequency Bands 157 Spread-Spectrum Technology 159 FHSS

Ngày tải lên: 04/07/2014, 18:20

... Switching 315 10-Mbps and 100-Mbps Ethernet 315 10-Mbps Versions of Ethernet 316 10BASE5 320 10BASE2 321 10BASE-T 322 10BASE-T Architecture 326 100BASE-TX 329 100BASE-FX ... Gigabit, 10-Gb, and Future Ethernet 337 1000-Mbps Versions of Ethernet (Gigabit) 337 1000BASE-T 339 1000BASE-SX and 1000BASE-LX 342 Gigabit Ethernet Architecture .345 10-Gbps Versions ... Understanding 502 Part II CCNA 2: Routers and Routing Basics 509 Chapter 10 WANs and Routers 511 WAN Characteristics 511 WAN Devices 515 WAN Standards 515 WAN Connection Options 519 WAN

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... Topology A network’s logical topology is how the hosts communicate across the medium The two most common types of logical topology are broadcast and token passing Trang 2100 Chapter 2: Networking ... sending them along the network Trang 4102 Chapter 2: Networking Fundamentals■ The term hub is used instead of repeater when referring to the device that serves as the center of a network Hubs (also ... host in the network is connected to the central device with its own cable When a star network is expanded to include additional networking devices that are connected to the main networking device,

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... Rb 38 Sr 39 Y 40 Zr 41 Nb 42 Mo 55 Cs 56 Ba 57 La 72 Hf 73 Ta 74 W 87 LI 88 Ra 89 Ac 104 Rf 105 Db 106 Sg 25 Mn 26 Fe 27 Co 28 Ni 29 Cu 30 Zn 43 Tc 44 Ru 45 Rh 46 Pd 47 Ag 48 Cd 75 Re 76 Os 77 ... Series 2 He 5 B 6 C 7 N 8 O 9 F 10 Ne 13 Al 14 Si 15 P 16 S 17 Cl 18 Ar 31 Ga 32 Ge 33 As 34 Se 35 Br 36 Kr 49 In 50 Sn 51 Sb 52 Te 53 I 54 Xe 81 Tl 82 Pb 83 Bi 84 Po 85 At 86 Rn 19 K 20 Ca 21 Sc ... 78 Pt 79 Au 80 Hg 107 Bh 108 Hs 109 Mt 110 111 112 1 H 3 Li 4 Be 11 Na 12 Mg 58 Ce 59 Pr 60 Nd 61 Pm 62 Sm 63 Eu 64 Gd 65 Td 66 Dy 67 Ho 68 Er 69 Tm 90 Th 91 Pa 92 U 93 Np 94 Pu 95 Am 96 Cm 97

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... at speeds up to 100 Mbps. Used in Fast Ethernet networks. ■ Category 5e (CAT 5e)—Used in networks running at speeds up to 1000 Mbps (1 Gbps). Used in Gigabit Ethernet (GigE) networks. ■ Category ... registered jack 45 (RJ-45) connector, as shown in Figure 3-9. Outer Jacket Overall Shield Twisted Pair RJ-45 Connector Color-Coded Plastic Insulation 1102.book Page 125 Tuesday, May 20, 2003 2:53 PM 126 ... Strength—Cold-rolled copper has a tensile strength 3500 to 4900 kilograms per square centimeter. Copper keeps its strength and toughness up to about 400° Fahrenheit (F) (204° Celsius [C]). This section focuses

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... A nanometer is one billionth of a meter (0.000000001 m) in length and is abbreviated nm Electromagnetic energy with wave-lengths between 700 nm and 400 nm is called visible light The longer wavewave-lengths ... about 300,000 kilometers per second or 186,000 miles per second or the speed of light Human eyes can sense electromagnetic energy only with wavelengths between 700 nanometers and about 400 nanometers ... or terminators The network cable must be one of the following and must include the correct connectors, or terminators: ■ 100 ohm UTP 4-pair cable (Ethernet LANs) ■ 62.5/125µ fiber-optic cable

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... ports of switches and routers Be very careful! Multimode 100/140 Microns Multimode 62.5/125 Microns Multimode 50/125 Microns Single-Mode 10/125 Microns Trang 8The following summarizes the features ... LANs) uses an optical fiber with either a 62.5- or a 50-micron core and a 125-micron diameter cladding This cable is commonly designated as 62.5/125 or 50/125 micron optical fiber A micron is one millionth ... cannot transmit light over cable as far as the lasers Multimode fiber (62.5/125) can carry data distances of up to 2000 meters (6560 feet) Multimode fiber is mainly used in LAN applications including

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... such as Cisco Aironet 1200 series, which is dual band, delivering support for both 2.4 GHz (802.11b) and 5 GHz (802.11a) standards The 802.11a standard can deliver a maximum data rate of 54 Mbps ... frequency Cisco has acquired 5-GHz technology and will deliver products for the 5-GHz frequency range because its wider bandwidth allows for faster throughput of data The Cisco Aironet 5 GHz 54 Mbps ... SuperHigh Infrared VisibleLight Ultra-Violet X-Rays 902-928 MHz 26 MHz 5 GHz (IEEE 802.11) HyperLAN HyperLAN2 2.4 - 2.4835 GHz 83.5 MHz (IEEE 802.11)

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... Time 5 4 3 2 1 Hopping Pattern: C A D B E Freq. (GHz) B A E D C Time Frequency(GHz) 1 5 4 3 2.41 2.42 2.43 2.44 11 0 0 11 0 0 1 0 0 Chipping Sequence 1 Number Sent Interference 1 1 0 1 1 0 0 1 0 ... doubling has achieved 108 Mbps In production networks a more standard rating is 20 to 26 Mbps 802.11g provides the same throughout as 802.11a but with backwards compatibility for 802.11g devices using ... the antennae, the size of the cell can range from a few dozen feet to 25 miles More commonly the range is from 300 to 500 feet To service larger areas multiple APs can be installed with a degree

Ngày tải lên: 04/07/2014, 18:20

... as 109 than as 1,000,000,000 Many calculations involved in cable testing involve numbers that are very large, so exponents are the preferred format Decibels An important way of describing networking ... through F) Remember that 10 * 10 can be written as 102(10 “squared,” or 10 raised to the second power, or 10 multiplied by itself 2 times 10 * 10 * 10 can be written as 103(ten “cubed,” A = Amplitude ... industry standards specified for the data rate used to transmit signals over Ethernet (10, 100, 1000, or 10,000 Mbps) The use of signals in this text refers to the data signals that move from the

Ngày tải lên: 04/07/2014, 18:20

... 10-Mbps Ethernet versus 100-Mbps and 1000-Mbps Ethernet In today’s networks, in which you see a mix of 10- and 1000-Mbps requirements, you must be aware of the need to change over to UTP CAT 5 ... nanosecond is one-billionth of a second, or 0.000000001 second) The TIA/EIA-568-B standard sets a limit for propagation delay for the various categories of UTP Trang 5Propagation delay measurements are ... Pair 1 Pair 4 1 2 3 4 5 6 7 8 T568B Correct T568B Wiring Reversed-Pair Wiring Fault Split-Pair Wiring Fault Transposed-Pair Wiring Fault 1 2 3 6 5 4 7 8 1 2 3 6 5 4 7 8 5 4 7 8 5 4 7 1 2 3 6 1 3

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... 62.5/50 micro multimode fiber 275 m (853 feet) for 62.5 micro fiber; 550 m (1804.5 feet) for 50 micro fiber 62.5/50 micro multimode fiber; 9-micron single- mode fiber 440 m (1443.6 feet) for 62.5 micro ... fiber 440 m (1443.6 feet) for 62.5 micro fiber; 550 m (1804.5 feet) for 50 micro fiber; 3 to 10 km (1.86 to 6.2 miles) on single-mode fiber Trang 2Figure 4-20 Differentiating Among ConnectionsConnection ... optical GBICs include the following: ■ Short wavelength (1000BASE-SX) ■ Long wavelength/long haul (1000BASE-LX/LH) ■ Extended distance (1000BASE-ZX) Typically, the GBIC is used as an interface between

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... Computer A 00-50-DA-0D-F5-2D 00-50-04-7C-2B-01Computer B 00-50-F1-12-8A-00Computer C Segment 1 To Segment 1 To Segment 2 Computer D 00-50-C2-43-0F-1B 00-50-B5-00-92-8BComputer E 00-50-BA-41-44-3CComputer ... intrusion into an existing network 0260.8c01.1111 0260.8c01.2222 0260.8c01.1111 0260.8c01.2222 Interface E0 E0 E1 E1 MAC Address 0260.8c01.1111 0260.8c01.2222 0260.8c01.3333 0260.8c01.4444 Trang 4Today, ... Virtual Private Networks (VPNs) or firewalls 802.1X/EAP IEEE 802.1X/Extensible Authentication Protocol (EAP)is an alternative WLAN security approach to WEP, as specified by IEEE 802.11 IEEE 802.1X/EAP

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... Peer-to-Peer Network Disadvantages of a Client-Server Network Does not scale well to large networks and administration becomes unmanageable Requires NOS software such as in Windows NT/2000/XP, Novell ... telecommuters The Cisco 827-4V ADSL router has one ADSL interface, as shown in Figure 4-50, that can connect users to the Internet or to a corporate LAN via DSL Figure 4-50 Cisco 827-4V Router ... port 0 5 ,+- 5 ,6- Ethernet AUI LED Synchronous Serial LEDs System OK LED Power On/Off Switch AUX Port BRI Port Synchronous Serial Port (DB-60) Console Port Ethernet AUI Port (DB-15) Trang

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... 103 = 10 * 10 * 10 = 1000) ■ Logarithms are similar to exponents A logarithm to the base of 10 of a number equals the exponent to which 10 has to be raised to equal the number (e.g., log10 1000 ... following is an 802.3u specification? A. 10BASE-F B. 10BASE-T C. 100BASE-TX D. 1000BASE-CX 2. Which of the following is the most appropriate choice for Ethernet connectivity? A. Use 10-Mbps Ethernet ... LAN implementations includes four main categories: Ethernet and IEEE 802.3, Fast Ethernet, Gigabit Ethernet, and 10G or 10000-Mbps Ethernet ■ Use a crossover cable to connect between similar devices

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... 10BASE-TX (100 m) 100 Ohm UTP 100BASE-FX (228_412 m) MM Fiber SC 1000BASE-T 1000BASE-SX (220-550 m) MM Fiber SC 10BASE-(V 1102.book Page 257 Tuesday, May 20, 2003 2:53 PM Trang 10258 Chapter 5: Ethernet ... Sublayer 802.3 Media Access Control Physical Signaling Layer Physical Medium 10BASE5 (500 m) 50 Ohm Coax N-Style 10BASE2 (185 m) 50 Ohm Coax BNC 10BASE-T 1000BASE-LX (550-5000 m) MM Fiber Sc 10BASE-TX ... May 20, 2003 2:53 PM Trang 6254 Chapter 5: Ethernet FundamentalsEthernet interfaces can range from US$10 to $100,000 Ethernet speeds can be 10, 100, 1000, or 10,000 Mbps This section explores

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... octets in length and is represented by the following binary pattern: 10101010 10101010 10101010 10101010 10101010 10101010 10101010 ■ Start Frame Delimiter (SFD)—This a one-octet field that marks the ... structure is nearly identical for all speeds of Ethernet (10/100/1,000/10,000 Mbps) Half-duplex Gigabit Ethernet 1000BASE-T and the “W” versions of 10-Gb Ethernet have certain timing issues that require ... Type 2 FCS 4 Data Pad 46 to 1500 FCS Calculation Trang 5Ethernet II Frame In the DIX version of Ethernet that was developed before the adoption of the IEEE 802.3 version of Ethernet, the Preamble

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... built-in or adapter card-type NIC. 1 102 .book Page 13 Tuesday, May 20, 200 3 2 :53 PM Testing Connectivity with Ping 15 files and graphics began to be desirable. The 300 bps speed quickly became intolerable, ... intolerable, and modem speeds started to increase. By the 1990s, modems were running at 9 600 bps. They reached the current standard of 56 kbps (56 ,00 0 bps) by 1998. Inevitably, the high-speed services ... address. 1 102 .book Page 15 Tuesday, May 20, 200 3 2 :53 PM 12 Chapter 1: Introduction to Networking Network Interface Cards As shown in Figure 1-6, a NIC is a printed circuit board that provides network com- munication...

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... NICs, 2 25 226 data centers, 54 55 Ethernet 10- Gbps, 347– 353 10- Mbps, 317, 3 20 10BASE2, 321–322 10BASE5, 3 20 321 10BASE-T, 322–323, 3 25 326, 328 100 -Mbps, 328–329 100 BASE-FX, 332–334 100 BASE-T, ... 337–339 100 0BASE-LX, 342–344 100 0BASE-SX, 342–3 45 100 0BASE-T, 339–342 architecture, 3 45 347 global configuration mode (CLI), 59 2 59 3 global parameter configuration, Cisco IOS Software, 55 6 55 9 goals ... 329–332 100 0-Mbps, 337–339 100 0BASE-LX, 342–344 100 0BASE-SX, 342–3 45 100 0BASE-T, 339–342 alignment errors, 284–2 85 architecture, 334, 336–337 autonegotiation, 2 85 287 broadcast domains, 300 collision...

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... Serial Line: Switched Serial IBM Mainframe 1 102 .book Page xxiii Tuesday, May 20, 200 3 2 :53 PM xxvii Introduction Cisco Networking Academy Program CCNA 1 and 2 Companion Guide, Third Edition, supplements ... this book and the Cisco Networking Academy Program. Kevin Warner Senior Director, Marketing Worldwide Education Cisco Systems, Inc. 1 102 .book Page xxvi Tuesday, May 20, 200 3 2 :53 PM xxviii Book ... reliance on the network, expands. To meet the many educational needs of the internetworking community, Cisco Systems established the Cisco Networking Academy Program. The Networking Academy is a...

Ngày tải lên: 04/07/2014, 18:20