- fm.fm Page i Monday, March PM. - Italy • Japan • Korea • Luxembourg • Malaysia • Mexico • The Netherlands • New Zealand • Norway • Peru • Philippines • Poland • Portugal • Puerto Rico • Romania • Russia • Saudi Arabia • Singapore • Slovakia • Slovenia • South Africa • Spain • Sweden • Switzerland • Taiwan • Thailand • Turkey • Ukraine • United Kingdom • United States • Venezuela. - fm.fm Page v Monday, March PM. - fm.fm Page x Monday, March PM. - CD-based practice exam—The companion CD contains a large number of questions not included in the text of the book. - Memory recall is based on connectors to the information that needs to be recalled—the greater the number of connectors to a piece of information, the better chance and better speed of recall. - ch01.fm Page 2 Monday, March PM. - ch01.fm Page 3 Monday, March PM. - The concepts and commands covered on the exam are not secrets locked in some vault, though—the information is available in many places and forms, including this book. - ch01.fm Page 4 Monday, March PM. - ch01.fm Page 5 Monday, March PM. - ch01.fm Page 7 Monday, March PM. - ch01.fm Page 8 Monday, March PM. - ch01.fm Page 9 Monday, March PM. - So, if you have taken or will take ICND, that’s the best way to prepare for the CCNA exam.. - Chapter 3—“The OSI, TCP/IP, and NetWare Protocol Architectures”. - Chapter 3—From the beginning of the “Foundation Topics” section up to the beginning of the section “The TCP/IP and NetWare Protocols”. - Here’s the simple strategy for you:. - If you would like more review, or if you are still new to the IOS, read on—the details in this section are important to using Cisco routers and switches. - This Here’s the Rootin-est Tootin-est Router in these here Parts!. - banner motd ^C This Here’s the Rootin-est Tootin-est Router in these here Parts! ^C. - Platform—The model and OS level running in the device.. - 1 What is the IP address or host name of the TFTP server?. - 2 What is the name of the file?. - (Some older routers had a hard- ware configuration register, with jumpers on the processor card, to set bits to a value of 0 or 1.) The second method used to determine where the router tries to obtain an IOS image is through the use of the boot system configuration command. - The rest of the questions can be defaulted. - ch03.fm Page 68 Monday, March PM. - ch03.fm Page 69 Monday, March PM. - 1 Name the seven layers of the OSI model.. - ch03.fm Page 71 Monday, March PM. - ch03.fm Page 72 Monday, March PM. - ch03.fm Page 73 Monday, March PM. - ch03.fm Page 74 Monday, March PM. - ch03.fm Page 75 Monday, March PM. - fragmentation.) The network layer of OSI defines most of the details that a Cisco router considers when routing. - ch03.fm Page 76 Monday, March PM. - ch03.fm Page 77 Monday, March PM. - ch03.fm Page 78 Monday, March PM. - ch03.fm Page 79 Monday, March PM. - (Some data link protocols perform error recovery, and some do not.) The data link address(es) are examined so that Host B can decide whether to process the data further. - ch03.fm Page 81 Monday, March PM. - ch03.fm Page 82 Monday, March PM. - The data link trailer is added to the end of the structure.. - ch03.fm Page 84 Monday, March PM. - Step 3 Add the destination network layer address to the data—The network layer creates the network header, which includes the network layer address, and places the data (L4PDU) behind it. - Step 4 Add the destination data link address to the data—The data link layer creates the data link header, places the data (L3PDU) behind it, and places the data link trailer at the end. - Step 5 Transmit the bits—The physical layer encodes a signal onto the medium to transmit the frame.. - ch03.fm Page 85 Monday, March PM. - ch03.fm Page 87 Monday, March PM. - ch03.fm Page 88 Monday, March PM. - A sender of data will want an acknowledgment of the data. - ch03.fm Page 91 Monday, March PM. - ch03.fm Page 92 Monday, March PM. - ch03.fm Page 94 Monday, March PM. - When sending, a device claims the free token, which really means changing bits in the 802.5 header to signify “token busy.” The data is then placed onto the ring after the Token Ring header. - ch03.fm Page 95 Monday, March PM. - ch03.fm Page 96 Monday, March PM. - (See Chapter 8 for more background on Frame Relay.) The address field in Frame Relay defines a data-link connection identifier (DLCI), which identifies each VC. - ch03.fm Page 97 Monday, March PM. - Finally, the fourth part of a data link identifies the contents of the data field in the frame. - ch03.fm Page 99 Monday, March PM. - ch03.fm Page 102 Monday, March PM. - ch03.fm Page 103 Monday, March PM. - data portion of the frame. - ch03.fm Page 104 Monday, March PM. - ch03.fm Page 106 Monday, March PM. - ch03.fm Page 107 Monday, March PM. - ch03.fm Page 108 Monday, March PM. - With routing protocols, however, the goal is not to help with end-user data delivery—the end goal is to fill the routing table with all known destination groups and with the best route to reach each group.. - ch03.fm Page 109 Monday, March PM. - ch03.fm Page 110 Monday, March PM. - To give credit where credit was due—but not too much credit—the names of these protocols were:. - The “Rou-Ting Table”—The place to store your widget-making instruction sheets. - ch03.fm Page 111 Monday, March PM. - ch03.fm Page 112 Monday, March PM. - ch03.fm Page 113 Monday, March PM. - ch03.fm Page 115 Monday, March PM. - ch03.fm Page 116 Monday, March PM. - (L2 PDU) Packet (L3 PDU) Segment (L4 PDU) ch03.fm Page 117 Monday, March PM. - ch03.fm Page 119 Monday, March PM. - ch03.fm Page 120 Monday, March PM. - ch03.fm Page 121 Monday, March PM. - ch03.fm Page 122 Monday, March PM. - ch03.fm Page 123 Monday, March PM. - ch03.fm Page 124 Monday, March PM. - ch03.fm Page 125 Monday, March PM. - ch03.fm Page 126 Monday, March PM. - ch03.fm Page 127 Monday, March PM. - ch04.fm Page 128 Monday, March PM. - ch04.fm Page 129 Monday, March PM. - ch04.fm Page 131 Monday, March PM. - ch04.fm Page 132 Monday, March PM. - Broadcast addresses —The most popular type of IEEE MAC address, the broadcast address, has a value of FFFF.FFFF.FFFF (hexadecimal notation). - (The concept of the 8B/10B encoding is not terribly different from FDDI’s 4B/5B encoding.) The net result is that 8 bits are exchanged per baud. - Step 4 The DNS returns the IP address of the Web server to the PC.. - Step 4 The DNS returns the IP address of the Web server to the PC in the DNS reply.. - Hello time—The time that the root waits before resending the periodic CBPDUs, which are then forwarded by successive bridges.. - MaxAge—The time any bridge should wait before deciding that the topology has changed.. - The forwarding interfaces are considered to be a part of the Spanning Tree.. - (Cisco expects CCNAs to have a solid command of VLAN concepts.) The VLAN is created via configuration in the switch, or possibly configuration referred to by the switch but residing in some external server (for example, using VLAN Membership Policy Server [VMPS
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