cisco networking academy program ccna 1 and 2 companion guide download

... the ability to measure resistance and continuity with the multimeter. 6V Lantern + 6V Lantern + 1102.book Page 121 Tuesday, May 20, 2003 2:53 PM 122 Chapter 3: Networking Media The top of Figure ... longer distances. A wire with an AWG size of 24 would be 1/24th of an inch in diameter. 1102.book Page 123 Tuesday, May 20, 2003 2:53 PM 124 Chapter 3: Networking Media Twisted-Pair Cable Twisted-pair ... shielding and a larger center conductor of 18 AWG. RG-11 cable is heavier still with a center conductor of 14 AWG and is used to bring cable into neighborhoods. 1102.book Page 128 Tuesday, May 20, 2003

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... (Token Ring LANs) ■ 100 ohm UTP 4-pair cable (Ethernet LANs) ■ 62.5/125 µ fiber-optic cable (Ethernet LANs) 1102.book Page 131 Tuesday, May 20, 2003 2:53 PM 132 Chapter 3: Networking Media ■ Coaxial ... Figure 3-12 Coaxial Cable—Thinnet 1102.book Page 129 Tuesday, May 20, 2003 2:53 PM 130 Chapter 3: Networking Media However, in both types of coaxial cable, the outer conductor must be carefully and ... TIA-568-A standards. You also test the cable for good connec- tions (continuity) and correct pinouts (correct wire on the right pin). 1102.book Page 132 Tuesday, May 20, 2003 2:53 PM Optical Media 133

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... Figure 3-21 Figure 3-21 Light Wave Path Numerical Aperture Axis n1 n1 NA = Sin 0 = n 2 Ðn1 Where: n 1 is cladding index n 2 is core index n2 0 n0 n1 Light must fall inside this angle to be guided ... of fiber and inserted into the fiber-optic 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 ... illustrated in Figure 3-20 ■ The paths (called the modes) that a light ray can follow when traveling down a fiber Figure 3-20 Numerical Aperture Controlling conditions 1 and 2 creates a fiber with

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... expand and contract at different rates. This expansion and con- traction causes the fiber to be squeezed or stretched, which causes microbending. 1102.book Page 151 Tuesday, May 20, 2003 2:53 ... Noise, speed, and distance are all interrelated. 1102.book Page 157 Tuesday, May 20, 2003 2:53 PM 158 Chapter 3: Networking Media ■ 5 GHz—Recently, the FCC opened up the 5-GHz band for unlicensed ... devices. Cisco has acquired 5-GHz technology and uses this frequency in new products, such as Cisco Aironet 1200 series, which is dual band, delivering support for both 2.4 GHz (802.11b) and 5

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... data and longer-range access Figure 3-44 Direct-Sequence Spread Spectrum 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 ... 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 11 0 0 1 1 0 1 0 1 Number Received Trang 3Limited to a 2-Mbps data-transfer rate, FHSS is ... create a standard that matched the manufacturer’s solution IEEE 802.11b, called Wi-Fi or high-speed wireless, refers to DSSS systems that operate at 1, 2, 5.5, and 11 Mbps All 802.11b systems

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... communications ■ Wireless standards include IEEE 802.11, IEEE 802.11a, IEEE 802.11b, and IEEE 802.11g ■ Wired equivalent privacy (WEP) is a security mechanism, defined within the 802.11 standard, that is ... (neutral) 3) Electrons C) Particles that have a positive charge A. 1-C, 2-B, 3-A B. 1-A, 2-C, 3-B C. 1-B, 2-C, 3-A D. 1-B, 2-A, 3-C 2. Which of the following regarding electricity is untrue? A. Opposite ... A. 1-C, 2-B, 3-A B. 1-B, 2-C, 3-A C. 1-A, 2-C, 3-B D. 1-C, 2-B, 3-A A. Open; voltage B. Closed; voltage C. Open; circuits D. Closed, circuits 5. What is the maximum cable length for STP? A. 100

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... 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 ... Understand what signals and noise impact networking media ■ Properly cable a LAN ■ Properly cable a WAN chpt_04.fm Page 182 Tuesday, May 27, 2003 9:01 AM Trang 5Chapter 4Cable Testing and Cabling ... the original power measured in watts chpt_04.fm Page 187 Tuesday, May 27, 2003 9:01 AM Trang 10188 Chapter 4: Cable Testing and Cabling LANs and WANs■ Vfinalis the delivered voltage measured in

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... Pair 1 Pair 4 1 2 3 4 5 6 7 8 T568A Pair 3 Pair 2 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 ... New Cabling Standard On June 20, 2002, the Category 6 (CAT 6) addition to the TIA-568 standard was pub-lished The official title of the standard is ANSI/TIA/EIA-568-B.2-1 This new standard specifies ... demonstrated in Figure 4-17 Figure 4-17 Cable Wire Map Problems Pair 2 Pinouts 1 = G/W 2 = Green 3 = O/W 4 = Blue 5 = Blue/W 6 = Orange 7 = Brown/W 8 = Brown Pinouts 1 = O/W 2 = Orange 3 = G/W 4

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... a GBIC, and Figure 4-22 shows a Cisco WS-X2931 Gigabit Ethernet Module with the GBIC out Figure 4-21 Gigabit Interface Converter (GBIC) Figure 4-22 Cisco WS-X2931 Gigabit Ethernet Module with ... distance (1000BASE-ZX) Typically, the GBIC is used as an interface between the Ethernet and fiber-optic systems, such as Fiber Channel and Gigabit Ethernet Figure 4-21 shows a GBIC, and Figure 4-22 shows ... (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; 550 m (1804.5 feet) for 50 micro fiber; 3 to 10 km (1.86 to 6.2

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... of intrusion into an existing network. chpt_04.fm Page 221 Tuesday, May 27, 2003 9:01 AM 222 Chapter 4: Cable Testing and Cabling LANs and WANs Today, in data communications, all switching equipment ... variety and prices of network compo- nents out in the market. This lab looks specifically at Ethernet switches and NICs. chpt_04.fm Page 222 Tuesday, May 27, 2003 9:01 AM LAN Connection Devices 223 ... eavesdroppers and thus increases vulnerability. The radio waves of wireless bridges are chpt_04.fm Page 223 Tuesday, May 27, 2003 9:01 AM 224 Chapter 4: Cable Testing and Cabling LANs and WANs concentrated

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... the bandwidth. Another way to express bandwidth is to specify the amount of data in bits per second that the serial channel can carry Table 4-6 compares physical standards for EIA/TIA-232 and ... Comparison of Physical Standards Data (bps) Distance (Meters) EIA/TIA-232 Distance (Meters) EIA/TIA-449, V.35, X.21, EIA-530 Trang 6Figure 4-44 WAN Serial Connection OptionsRouters and Serial Connections ... connec-tion from a user to a Network Terminaconnec-tion 1 (NT1) device A terminal (T) interface is the electrical interface between an NT1 device and an NT 2 device, which is usually a private branch exchange

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... (e.g., 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 ... follows: 1 to 8 2 to 7 3 to 6 4 to 5 5 to 4 6 to 3 7 to 2 8 to 1 To set up a connection between your terminal and the Cisco console port, you must perform the following steps: Step 1 Cable the ... complete cycles per second IEEE 802.1X/Extensible Authentication Protocol (EAP) An alternative WLAN security approach to WEP as specified by IEEE 802.11 IEEE 802.1X/EAP focuses on developing a framework

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... BNC 10BASE-T 1000BASE-LX (550-5000 m) MM Fiber Sc 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 ... be 10, 100, 1000, or 10,000 Mbps This section explores more details of original Ethernet (10BASE-T), Fast Ethernet (100BASE-TX and 100BASE-FX), Gigabit Ethernet (1000BASE-T and 1000BASE-X), and ... Tech-nologies and Ethernet Switching.” 1102.book Page 253 Tuesday, May 20, 2003 2:53 PM Trang 6254 Chapter 5: Ethernet FundamentalsEthernet interfaces can range from US$10 to $100,000 Ethernet

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... The preamble is seven octets in length and is represented by the following binary pattern: 10101010 10101010 10101010 10101010 10101010 10101010 10101010 ■ Start Frame Delimiter (SFD)—This a ... in paragraph 3.2.3 in the 1998 version of 802.3 and no longer is supported in 802.3 Ethernet. 1102.book Page 264 Tuesday, May 20, 2003 2:53 PM History and Evolution of Ethernet 265 ■ Length/Type—If ... Address 2 Length/Type Field (Length if less than 0600 in hexadecimal—otherwise, protocol Type) 46 to 1500 Data and Pad 4 Frame Check Sequence (CRC Checksum) 1102.book Page 262 Tuesday, May 20, 2003

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... 347–353 10 -Mbps, 317 , 320 10 BASE2, 3 21 322 10 BASE5, 320 –3 21 10BASE-T, 322 – 323 , 325 – 326 , 328 10 0-Mbps, 328 – 329 10 0BASE-FX, 3 32 334 10 0BASE-T, 329 –3 32 10 00-Mbps, 337–339 10 00BASE-LX, 3 42 344 10 00BASE-SX, 3 42 345 10 00BASE-T, ... 82 cabling, 20 5 20 6 comparing with WANs, 511 connection devices bridges, 21 8 – 21 9 hubs, 21 7 repeater, 21 6 switches, 2 21 22 2 connectivity, NICs, 22 5 22 6 data centers, 54–55 Ethernet 10 -Gbps, 347–353 10 -Mbps, ... glass, 14 4 H half duplex transmission, 2 71, 28 9 timing, 27 3 handshaking, 4 81 hard disk drives, 7 hardware components of LANs bridges, 21 8 – 21 9 hubs, 21 7 repeaters, 21 6 switches, 2 21 22 2 HC (horizontal...

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... 11 02. book Page iv Tuesday, May 20 , 20 03 2: 53 PM Cisco Networking Academy Program CCNA 1 and 2 Companion Guide Third Edition Cisco Systems, Inc. Cisco Networking Academy Program Cisco Press 2 01 ... Tuesday, May 20 , 20 03 2: 53 PM ii Cisco Networking Academy Program CCNA 1 and 2 Companion Guide Third Edition Cisco Systems, Inc. Cisco Networking Academy Program Copyright â 20 03 Cisco Systems, ... mark. Warning and Disclaimer This book is designed to provide information about CCNA 1: Networking Basics and CCNA 2: Routers and Routing Basics of the Cisco Networking Academy Program CCNA course....

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... Serial IBM Mainframe 11 02. book Page xxiii Tuesday, May 20 , 20 03 2: 53 PM xxvii Introduction Cisco Networking Academy Program CCNA 1 and 2 Companion Guide, Third Edition, supplements your classroom and laboratory ... choosing this book and the Cisco Networking Academy Program. Kevin Warner Senior Director, Marketing Worldwide Education Cisco Systems, Inc. 11 02. book Page xxvi Tuesday, May 20 , 20 03 2: 53 PM xxviii Book ... Module 1 content from the CCNA 1 online curriculum. 11 02. book Page xxviii Tuesday, May 20 , 20 03 2: 53 PM xxix ■ Chapter 2, Networking Fundamentals,” introduces some of the terminology used by networking...

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... number to a hexadecimal number 11 02. book Page 4 Tuesday, May 20 , 20 03 2: 53 PM 8 Chapter 1: Introduction to Networking Figure 1- 1 Central Processing Unit Figure 1- 2 Floppy Disk Drive ■ Microprocessor—A ... learned. The CD helps you understand routing and switching, and make the connection between theory and practice. 11 02. book Page xxxiii Tuesday, May 20 , 20 03 2: 53 PM Objectives Upon completion ... 11 02. book Page 2 Tuesday, May 20 , 20 03 2: 53 PM xxxi ■ Chapter 14 , “Managing Cisco IOS Software,” examines the stages of the router boot sequence. It also covers how to use a variety of Cisco...

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... (Layer 2) address, and network (Layer 3) address. 11 02. book Page 15 Tuesday, May 20 , 20 03 2: 53 PM 12 Chapter 1: Introduction to Networking Network Interface Cards As shown in Figure 1- 6, a ... early 19 80s, and the transfer of 11 02. book Page 14 Tuesday, May 20 , 20 03 2: 53 PM 16 Chapter 1: Introduction to Networking determine if there is connectivity to a destination. The ping command ... files and performs e-mail, file transfers, and other functions Displays HTML files and performs e-mail, file transfers, and other functions 11 02. book Page 17 Tuesday, May 20 , 20 03 2: 53 PM 10 Chapter...

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... Exponent 2 7 2 6 2 5 2 4 2 3 2 2 2 1 2 0 Place Value 12 8643 21 6 84 21 Example: 10 110 00 010 110 11 02. book Page 23 Tuesday, May 20 , 20 03 2: 53 PM 24 Chapter 1: Introduction to Networking Example: 1A2C = (1 ... (2 4 = 16 ), as you will see in Table 1- 6 in a moment. Instead of writing 10 1 010 10 .11 110 000 .11 0000 01. 111 00 010 . 011 1 011 1. 010 100 01 you can write the much-shorter hex equivalent: AA.F0.C1.E2.77. 51. To ... 11 111 111 . Table 1- 5 Base 16 Number System Number of Symbols 16 Symbols 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F Base Exponent 16 3 16 2 16 1 16 0 Place Value 65536 25 6 16 1 Example: 1A2C 1A2C 11 02. book...

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