31 Days Before Your CCNA Exam
(Sprache: Englisch)
31 Days Before your CCNA Exam, Second Edition, offers you a personable and practical way to understand the certification process, commit to taking the exam, and finish your preparation using a variety of Foundational and Supplemental study resources. The...
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31 Days Before your CCNA Exam, Second Edition, offers you a personable and practical way to understand the certification process, commit to taking the exam, and finish your preparation using a variety of Foundational and Supplemental study resources. The book breaks down key exam topics into 31 daily review sessions using short summaries, lists, tables, examples, and graphics. A Study Resources section provides you with a quick reference for locating more in-depth treatment of a day's topics within the relevant Foundational and Supplemental resources. Use this day-by-day guide to organize, prepare, and review all the CCNA(R) objectives.The features of the book empower you to fit exam preparation into an otherwise busy schedule: -Tear out visual calendar summarizes each day's study topics -Checklist highlights important tasks and deadlines leading up to your exam -Description of the 640-802 CCNA exam organization and sign up process, includes how to use a voucher -Strategies from the author help you to be mentally, organizationally, and physically prepared for exam day -Conversational tone, making your study time more enjoyable Allan Johnson entered the academic world in 1999 after ten years as a business owner and operator. He has a passion for teaching and holds both an MBA and an M.Ed in occupational training and development. Allan currently works full time developing CCNA instructional support and training materials.
Inhaltsverzeichnis zu „31 Days Before Your CCNA Exam “
Introduction xxv Part I: Networking Basics 1 Day 31: Network Devices, Components, and Diagrams 3 CCNA 640-802 Exam Topics 3 Key Points 3 Devices 3 Switches 3 Routers 5 Media 5 LANs and WANs 7 Networking Icons 7 Physical and Logical Topologies 8 The Hierarchical Network Model 9 The Enterprise Architecture 10 Network Documentation 11 Study Resources 12 Day 30: Network Models and Applications 13 CCNA 640-802 Exam Topics 13 Key Points 13 The OSI and TCP/IP Models 13 OSI Layers 14 TCP/IP Layers and Protocols 15 Protocol Data Units and Encapsulation 16 Growth of Network-Based Applications 17 Quality of Service 17 Increased Network Usage 17 The Impact of Voice and Video on the Network 18 Study Resources 19 Day 29: Network Data Flow from End-to-End 21 CCNA 640-802 Exam Topics 21 Key Points 21 The TCP/IP Application Layer 21 The TCP/IP Transport Layer 21 TCP Header 22 Port Numbers 23 Error Recovery 24 Flow Control 25 Connection Establishment and Termination 25 UDP 26 The TCP/IP Internet Layer 26 The TCP/IP Network Access Layer 27 Data Encapsulation Summary 28 Using Layers to Troubleshoot 29 Study Resources 29 Part II: Switching Concepts and Configuration 31 Day 28: Connecting Switches and Ethernet Technology 33 CCNA 640-802 Exam Topics 33 Key Topics 33 Ethernet Overview 33 Legacy Ethernet Technologies 34 CSMA/CD 35 Legacy Ethernet Summary 35 Current Ethernet Technologies 36 UTP Cabling 36 Benefits of Using Switches 37 Ethernet Addressing 38 Ethernet Framing 39 The Role of the Physical Layer 40 Study Resources 41 Day 27: Network Segmentation and Switching Concepts 43 CCNA 640-802 Exam Topics 43 Key Topics 43 Evolution to Switching 43 Switching Logic 44 Collision and Broadcast Domains 45 Frame Forwarding 45 Switch Forwarding Methods 45 Symmetric and Asymmetric Switching 46 Memory Buffering 46 Layer 2 and Layer 3 Switching 46 Accessing and Navigating Cisco IOS 46 Connecting to Cisco Devices 46 CLI EXEC Sessions 47 Using the Help Facility 48 CLI Navigation and Editing Shortcuts
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48 Command History 49 IOS Examination Commands 50 Subconfiguration Modes 50 Storing and Erasing Configuration Files 51 Study Resources 52 Day 26: Basic Switch Configuration and Port Security 53 CCNA 640-802 Exam Topics 53 Key Topics 53 Basic Switch Configuration Commands 53 Configuring SSH Access 55 Configuring Port Security 56 Shutting Down and Securing Unused Interfaces 58 Study Resources 59 Day 25: Verifying and Troubleshooting Basic Switch Configurations 61 CCNA 640-802 Exam Topics 61 Key Points 61 Troubleshooting Methodology 61 Verifying Network Connectivity 62 Interface Status and the Switch Configuration 65 Interface Status Codes 65 Duplex and Speed Mismatches 66 Common Layer 1 Problems On "Up" Interfaces 67 CDP as a Troubleshooting Tool 68 Study Resources 70 Day 24: Switching Technologies and VLAN Concepts 71 CCNA 640-802 Exam Topics 71 Key Points 71 VLAN Concepts 71 Traffic Types 72 Types of VLANs 72 Voice VLAN Example 73 Trunking VLANs 74 Dynamic Trunking Protocol 75 VTP Concepts 76 VTP Modes 77 VTP Operation 77 VTP Pruning 78 STP Concepts and Operation 78 RSTP Concepts and Operation 80 Configuring and Verifying STP 82 PVST+, PVRST, and MIST 82 Configuring and Verifying the BID 82 PortFast 84 Configuring RSTP 84 Troubleshooting STP 84 Study Resources 85 Day 23: VLAN and Trunking Configuration and Troubleshooting 87 CCNA 640-802 Exam Topics 87 Key Points 87 Sample Topology 87 VLAN Configuration and Verification Commands 88 Configuring and Verifying Trunking 91 Troubleshooting VLAN and Trunking Problems 93 Study Resources 95 Day 22: VTP and InterVLAN Routing Configuration and Troubleshooting 97 CCNA 640-802 Exam Topics 97 Key Points 97 VTP Configuration and Verification 97 VTP Troubleshooting 102 Inter-VLAN Routing Configuration and Verification 103 Troubleshooting Inter-VLAN Routing 105 Study Resources 106 Part III: Addressing the Network 107 Day 21: IPv4 Address Subnetting 109 CCNA 640-802 Exam Topics 109 Key Topics 109 IPv4 Addressing 109 Header Format 109 Classes of Addresses 110 Purpose of the Subnet Mask 111 Subnetting in Four Steps 112 Determine How Many Bits to Borrow 113 Determine the New Subnet Mask 114 Determine the Subnet Multiplier 114 List the Subnets, Host Ranges, and Broadcast Addresses 114 Subnetting Example 1 114 Subnetting Example 2 115 Subnetting Example 3 115 VLSM 116 Summarizing Subnet Addresses 118 Private and Public IP Addressing 119 Study Resources 120 Day 20: Host Addressing, DHCP, and DNS 123 CCNA 640-802 Exam Topics 123 Key Topics 123 Addressing Devices 123 ARP 124 DNS 126 DHCP 127 Configuring on a Cisco Router as a DHCP Server 128 Network Layer Testing Tools 132 Ping 132 Study Resources 134 Day 19: Basic IPv6 Concepts 137 CCNA 640-802 Exam Topics 137 Key Topics 137 Overview of IPv6 137 IPv6 Address Structure 139 Conventions for Writing IPv6 Addresses 139 Conventions for Writing IPv6 Prefixes 139 IPv6 Global Unicast Address 140 Reserved, Private, and Loopback Addresses 141 The IPv6 Interface ID and EUI-64 Format 141 IPv6 Address Management 142 Transitioning to IPv6 142 Study Resources 144 Part IV: Routing Concepts and Configuration 145 Day 18: Basic Routing Concepts 147 Key Topics 147 Packet Forwarding 147 Path Determination and Switching Function Example 148 Routing Methods 149 Classifying Dynamic Routing Protocols 150 IGP and EGP 150 Distance Vector Routing Protocols 150 Link-State Routing Protocols 151 Classful Routing Protocols 151 Classless Routing Protocols 152 Dynamic Routing Metrics 152 Administrative Distance 153 IGP Comparison Summary 154 Routing Loop Prevention 155 Link-State Routing Protocol Features 156 Building the LSDB 156 Calculating the Dijkstra Algorithm 157 Convergence with Link-State Protocols 158 Study Resources 158 Day 17: Connecting and Booting Routers 161 CCNA 640-802 Exam Topics 161 Key Topics 161 Router Internal Components 161 IOS 162 Router Bootup Process 162 Router Ports and Interfaces 164 Router Connections 164 Study Resources 166 Day 16: Basic Router Configuration and Verification 167 CCNA 640-802 Exam Topics 167 Key Topic 167 Basic Router Configuration 167 Verifying Network Connectivity 175 Study Resources 177 Day 15: Managing Cisco IOS and Configuration Files 179 CCNA 640-802 Exam Topics 179 Key Topics 179 The Cisco IOS File System 179 IFS Commands 179 URL Prefixes for Specifying File Locations 181 Commands for Managing Configuration Files 182 Cisco IOS File Naming Conventions 182 Manage IOS Images 183 Backing Up an IOS image 184 Restoring an IOS Image 185 Recovering an IOS Image Using a TFTP Server 186 Recovering an IOS Image Using Xmodem 187 Recovering a Lost Password 188 Study Resources 189 Day 14: Static, Default, and RIP Routing 191 CCNA 640-802 Exam Topics 191 Key Topics 191 Static Route Configuration 191 Static Routes Using the "Next Hop" Parameter 193 Static Routes Using the Exit Interface Parameter 193 Default Static Routes 194 RIP Concepts 197 RIPv1 Message Format 197 RIPv1 Operation 198 RIPv1 Configuration 198 RIPv1 Verification and Troubleshooting 199 Passive Interfaces 203 Automatic Summarization 204 Default Routing and RIPv1 206 RIPv2 Configuration 207 Disabling Autosummarization 208 RIPv2 Verification and Troubleshooting 208 Study Resources 209 Day 13: EIGRP Routing 211 CCNA 640-802 Exam Topics 211 Key Topics 211 EIGRP Operation 211 EIGRP Message Format 212 RTP and EIGRP Packet Types 212 DUAL 214 Administrative Distance 214 EIGRP Configuration 214 The network Command 215 Automatic Summarization 216 Manual Summarization 217 EIGRP Default Route 219 Modifying the EIGRP Metric 219 Modifying Hello Intervals and Hold Times 220 EIGRP Verification and Troubleshooting 221 Study Resources 226 Day 12: OSPF Routing 227 CCNA 640-802 Exam Topics 227 Key Topics 227 OSPF Operation 227 OSPF Message Format 227 OSPF Packet Types 228 Neighbor Establishment 228 Link-State Advertisements 229 OSPF Network Types 230 DR/BDR Election 230 OSPF Algorithm 231 Link-State Routing Process 232 OSPF Configuration 233 The router ospf Command 234 The network Command 234 Router ID 235 Modifying the OSPF Metric 236 Controlling the DR/BDR Election 237 Redistributing a Default Route 238 Modifying Hello Intervals and Hold Times 238 Verifying and Troubleshooting OSPF 239 Study Resources 243 Day 11: Troubleshooting Routing 245 CCNA 640-802 Exam Topics 245 Key Topics 245 The Basic Commands 245 VLSM Troubleshooting 246 Discontiguous Networks 246 Troubleshooting RIP 247 Troubleshooting EIGRP and OSPF Interface Issues 248 Troubleshooting Neighbor Adjacency Issues 249 Study Resources 250 Part V: Wireless Concepts and Configuration 251 Day 10: Wireless Standards, Components, and Security 253 CCNA 640-802 Exam Topics 253 Key Topics 253 Wireless Standards 253 Wireless Modes of Operation 254 Wireless Frequencies 254 Wireless Encoding and Channels 255 Wireless Coverage Area 256 CSMA/CA 256 Wireless Security Risks 257 Wireless Security Standards 258 Study Resources 259 Day 9: Configuring and Troubleshooting Wireless Networks 261 CCNA 640-802 Exam Topics 261 Key Topics 261 Implementing a WLAN 261 Wireless LAN Implementation Checklist 262 Wireless Troubleshooting 264 Study Resources 264 Part VI: Basic Security Concepts and Configuration 265 Day 8: Mitigating Security Threats and Best Practices 267 CCNA 640-802 Exam Topics 267 Key Topics 267 The Importance of Security 267 Attacker Terminology 267 Thinking Like an Attacker 268 Balancing Security and Availability 269 Developing a Security Policy 269 Common Security Threats 270 Vulnerabilities 270 Threats to Physical Infrastructure 271 Threats to Networks 271 Types of Network Attacks 271 General Mitigation Techniques 273 Host and Server Security 273 Intrusion Detection and Prevention 273 Security Appliances and Applications 273 Maintaining Security 275 Study Resources 276 Part VII: ACL and NAT Concepts and Configuration 277 Day 7: ACL Concepts and Configurations 279 CCNA 640-802 Exam Topics 279 Key Topics 279 ACL Concepts 279 Defining an ACL 279 Processing Interface ACLs 279 Types of ACLs 280 ACL Identification 281 ACL Design Guidelines 281 Configuring Standard Numbered ACLs 282 Standard Numbered ACL: Permit Specific Network 282 Standard Numbered ACL: Deny a Specific Host 283 Standard Numbered ACL: Deny a Specific Subnet 283 Standard Numbered ACL: Deny Telnet Access to the Router 284 Configuring Extended Numbered ACLs 284 Extended Numbered ACL: Deny FTP from Subnets 285 Extended Numbered ACL: Deny Only Telnet from Subnet 285 Configuring Named ACLs 286 Standard Named ACL Steps and Syntax 286 Standard Named ACL: Deny a Single Host from a Given Subnet 286 Extended Named ACL Steps and Syntax 287 Extended Named ACL: Deny a Telnet from a Subnet 287 Adding Comments to Named or Numbered ACLs 287 Complex ACLs 288 Study Resources 288 Day 6: Verifying and Troubleshooting ACL Implementations 289 CCNA 640-802 Exam Topics 289 Key Topics 289 Verifying ACLs 289 Troubleshooting ACLs 291 Problem 1: Host Has No Connectivity 291 Problem 2: Denied Protocols 292 Problem 3: Telnet is Allowed #1 293 Problem 4: Telnet Is Allowed #2 294 Problem 5: Telnet Is Allowed #3 294 Study Resources 295 Day 5: NAT Concepts, Configuration, and Troubleshooting 297 CCNA 640-802 Exam Topics 297 Key Topics 297 NAT Concepts 297 A NAT Example 298 Dynamic and Static NAT 299 NAT Overload 299 NAT Benefits 300 NAT Limitations 300 Configuring Static NAT 301 Configuring Dynamic NAT 301 Configuring NAT Overload 303 Verifying NAT 303 Troubleshooting NAT 304 Study Resources 306 Part VIII: WAN Concepts and Configuration 307 Day 4: WAN and VPN Technologies 309 CCNA 640-802 Exam Topics 309 Key Topics 309 WAN Technology Concepts 309 WAN Components and Devices 309 WAN Physical Layer Standards 311 WAN Data Link Protocols 312 WAN Switching 312 WAN Connection Options 313 Dedicated Connection Options 314 Circuit-Switched Connection Options 314 Packet-Switched Connection Options 315 Internet Connection Options 317 Choosing a WAN Link Option 319 VPN Technology 320 VPN Benefits 320 Types of VPN Access 320 VPN Components 322 Establishing Secure VPN Connections 322 Study Resources 326 Day 3: PPP Configuration and Troubleshooting 329 CCNA 640-802 Exam Topics 329 Key Topics 329 HDLC 329 HDLC Encapsulation 329 Configuring HDLC 330 Verifying HDLC 331 PPP Concepts 331 The PPP Frame Format 331 PPP Link Control Protocol (LCP) 332 PPP Configuration and Verification 334 Basic PPP 334 Study Resources 336 Day 2: Frame Relay Configuration and Troubleshooting 337 CCNA 640-802 Exam Topics 337 Key Topics 337 Frame Relay Concepts 337 Frame Relay Components 338 Frame Relay Topologies 339 NBMA Limitations and Solutions 340 Inverse ARP and LMI Concepts 341 Inverse ARP and LMI Operation 342 Configuring and Verifying Frame Relay 343 Full Mesh with One Subnet 344 Partial Mesh with One Subnet per PVC 347 Frame Relay Verification 348 Troubleshooting WAN Implementations 349 Troubleshooting Layer 1 Problems 350 Troubleshooting Layer 2 Problems 350 Troubleshooting Layer 3 Problems 351 Study Resources 352 Day 1: CCNA Skills Review and Practice 353 Key Topics 353 CCNA Skills Practice 353 Introduction 353 Topology Diagram 353 Addressing Table 354 VLAN Configuration and Port Mappings 355 ISP Configuration 355 Task 1: Configure Frame Relay in a Hub-and-Spoke Topology 356 Task 2: Configure PPP with CHAP 356 Task 3: Configure Static and Dynamic NAT on HQ 356 Task 4: Configure Default Routing 357 Task 5: Configure Inter-VLAN Routing 357 Task 6: Configure and Optimize EIGRP Routing 357 Task 7: Configure VTP, Trunking, the VLAN Interface, and VLANs 357 Task 8: Assign VLANs and Configure Port Security 358 Task 9: Configure STP 358 Task 10: Configure DHCP 359 Task 11: Configure a Firewall ACL 359 CCNA Skills Practice (Answers) 360 Task 1: Configure Frame Relay in a Hub-and-Spoke Topology 360 Task 2: Configure PPP with CHAP 362 Task 3: Configure Static and Dynamic NAT on HQ 362 Task 4: Configure Default Routing 364 Task 5: Configure Inter-VLAN Routing 364 Task 6: Configure and Optimize EIGRP Routing 365 Task 7: Configure VTP, Trunking, the VLAN Interface, and VLANs 367 Task 8: Assign VLANs and Configure Port Security 369 Task 9: Configure STP 370 Task 10: Configure DHCP 371 Task 11: Configure a Firewall ACL 372 CCNA Skills Challenge 374 Part IX: Exam Day and Post-Exam Information 375 Exam Day 377 What You Need for the Exam 377 What You Should Receive After Completion 377 Summary 378 Post-Exam Information 379 Receiving Your Certificate 379 Determining Career Options 379 Examining Certification Options 380 If You Failed the Exam 380 Summary 380 TOC, 1587131978, 10/21/08
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Autoren-Porträt von Allan Johnson
Allan Johnson entered the academic world in 1999 after ten years as a business owner/operator to dedicate his efforts to his passion for teaching. He holds both an MBA and an M.Ed in Occupational Training and Development. He taught CCNA courses at the high school level for seven years and has taught both CCNA and CCNP courses at Del Mar College in Corpus Christi, Texas. In 2003, Allan began to commit much of his time and energy to the CCNA Instructional Support Team providing services to Networking Academy instructors worldwide and creating training materials. He now works full time for the Academy in Learning Systems Development.
Bibliographische Angaben
- Autor: Allan Johnson
- 2009, 2nd revised edition, 399 Seiten, mit Abbildungen, Maße: 15 x 22,1 cm, Gebunden, Englisch
- Verlag: Macmillan Technical Publishing
- ISBN-10: 1587131978
- ISBN-13: 9781587131974
Sprache:
Englisch
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