31 Days Before your CCNA Exam

Allan Johnson entered the academic world in 1999 after 10 years as a business owner/operator to dedicate his efforts to his passion for teaching. He holds both an MBA and an MEd in training and development. He taught CCNA courses at the high school level for 7 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 splits his time between working as a Curriculum Lead for Cisco Networking Academy and as Account Lead for Unicon (unicon.net), supporting Cisco’s educational efforts.

• Introduction xxviiiDay 31: Networking Models, Devices, and Components 1CCNA 200-301 Exam Topics 1Key Points 1The OSI and TCP/IP Models 1The TCP/IP Application Layer 5The TCP/IP Transport Layer 5The TCP/IP Internet Layer 10The TCP/IP Network Access Layer 11Data Encapsulation Summary 12Networking Icons 13Devices 14Physical Layer 20LAN Device Connection Guidelines 22LANs and WANs 23Small Office/Home Office (SOHO) 23Physical and Logical Topologies 25Hierarchical Campus Designs 25Study Resources 27Day 30: Ethernet Switching 29CCNA 200-301 Exam Topics 29Key Topics 29Evolution to Switching 29Switching Logic 30Collision and Broadcast Domains 31Frame Forwarding 31Ethernet Overview 32Legacy Ethernet Technologies 33Current Ethernet Technologies 35UTP Cabling 36Benefits of Using Switches 37Ethernet Addressing 37Ethernet Framing 38The Role of the Physical Layer 39Study Resources 40Day 29: Switch Configuration Basics 41CCNA 200-301 Exam Topics 41Key Topics 41Accessing and Navigating the Cisco IOS 41Basic Switch Configuration Commands 46Half Duplex, Full Duplex, and Port Speed 48Verifying Network Connectivity 49Troubleshoot Interface and Cable Issues 52Study Resources 55Day 28: IPv4 Addressing 57CCNA 200-301 Exam Topics 57Key Topics 57IPv4 Addressing 57Private and Public IP Addressing 60Subnetting in Four Steps 60VLSM 64Study Resources 66Day 27: IPv6 Addressing 67CCNA 200-301 Exam Topics 67Key Topics 67Overview and Benefits of IPv6 67The IPv6 Protocol 68IPv6 Address Types 69Representing the IPv6 Address 78IPv6 Subnetting 79EUI-64 Concept 80Stateless Address Autoconfiguration 81Migration to IPv6 82Study Resources 83Day 26: VLAN and Trunking Concepts and Configurations 85CCNA 200-301 Exam Topics 85Key Points 85VLAN Concepts 85Trunking VLANs 88VLAN Configuration and Verification 90Trunking Configuration and Verification 94VLAN Troubleshooting 97Trunking Troubleshooting 99Study Resources 101Day 25: STP 103CCNA 200-301 Exam Topic 103Key Topics 103STP Concepts and Operation 103STP Algorithm 104STP Convergence 105STP Varieties 106PVST Operation 107Rapid PVST+ Operation 109RSTP Interface Behavior 110RSTP Port Roles 110Edge Ports 111Configuring and Verifying Varieties of STP 112Study Resources 119Day 24: EtherChannel and HSRP 121CCNA 200-301 Exam Topics 121Key Topics 121EtherChannel Operation 121EtherChannel Protocols 123Configuring EtherChannel 124Verifying EtherChannel 125Troubleshooting EtherChannel 127First-Hop Redundancy Concepts 128FHRPs 129HSRP Operation 130HSRP Configuration and Verification 131HSRP Load Balancing 132Troubleshooting HSRP 135VRRP and GLBP 135Study Resources 136Day 23: DHCP and DNS 137CCNA 200-301 Exam Topics 137Key Topics 137DHCPv4 137DHCPv4 Configuration Options 138DHCPv6 144DHCPv6 Configuration Options 147DHCP Troubleshooting 149DNS Operation 150Troubleshooting DNS 152Verifying Host IP Configuration 153Study Resources 158Day 22: Wireless Concepts 159CCNA 200-301 Exam Topics 159Key Topics 159Wireless Standards 159Wireless Topologies 163AP Architectures 165Wireless Security Protocols 168Study Resources 172Day 21: WLAN Configuration 173CCNA 200-301 Exam Topics 173Key Topics 173Logging Into a Cisco WLC 173Configuring a WLC with a WLAN 175Study Resources 181Day 20: LAN Security and Device Hardening 183CCNA 200-301 Exam Topics 183Key Topics 183Access Control 183Port Security 189LAN Threat Mitigation 193Study Resources 201Day 19: Basic Routing Concepts 203CCNA 200-301 Exam Topics 203Key Topics 203Packet Forwarding 203Routing Methods 205Classifying Dynamic Routing Protocols 206Dynamic Routing Metrics 208Administrative Distance 209IGP Comparison Summary 211Routing Loop Prevention 211Link-State Routing Protocol Features 212Study Resources 215Day 18: Basic Router Configuration 217CCNA 200-301 Exam Topics 217Key Topics 217Basic Router Configuration with IPv4 217Basic Router Configuration with IPv6 225Verifying IPv4 and IPv6 Network Connectivity 229Small Office or Home Office Routers 231Basic IP Addressing Troubleshooting 233Study Resources 234Day 17: The Routing Table 235CCNA 200-301 Exam Topics 235Key Topics 235Two Router Functions 235Components of the Routing Table 236Routing Table Principles 239Route Entry Structure 240Study Resources 241Day 16: Inter-VLAN Routing 243CCNA 200-301 Exam Topics 243Key Points 243Inter-VLAN Routing Concepts 243Router on a Stick Configuration and Verification 245Multilayer Switching Inter-VLAN Routing Configuration and Verification 248Study Resources 250Day 15: Static and Default Route Configuration 251CCNA 200-301 Exam Topics 251Key Topics 251Static and Default Routing Overview 251IPv4 Static Route Configuration 252Study Resources 264Day 14: OSPF Operation 265CCNA 200-301 Exam Topics 265Key Topics 265Single-Area OSPF Operation 265OSPF DR and BDR 269OSPF Algorithm 269Link-State Routing Process 270OSPFv2 Versus OSPFv3 271Multiarea OSPF Operation 272Study Resources 274Day 13: Single-Area OSPF Implementation 275CCNA 200-301 Exam Topics 275Key Topics 275Single-Area OSPFv2 Configuration 275Verifying OSPFv2 280Study Resources 284Day 12: Fine-Tuning and Troubleshooting OSPF 285CCNA 200-301 Exam Topics 285Key Topics 285OSPFv2 Configuration Example 285Modifying OSPFv2 287Troubleshooting OSPF 291Study Resources 293Day 11: Network Security Concepts 295CCNA 200-301 Exam Topics 295Key Topics 295Security Fundamentals 295Network Attacks 299Security Program 302Password Vulnerabilities 303Password Alternatives 304Study Resources 306Day 10: ACL Concepts 307CCNA 200-301 Exam Topics 307Key Topics 307ACL Operation 307Planning to Use ACLs 309Study Resources 312Day 9: ACL Implementation 313CCNA 200-301 Exam Topics 313Key Topics 313Configuring Standard Numbered IPv4 ACLs 313Configuring Extended Numbered IPv4 ACLs 315Configuring Named IPv4 ACLs 317Verifying IPv4 ACLs 319Comparing IPv4 and IPv6 ACLs 320Configuring IPv6 ACLs 321Verifying IPv6 ACLs 323Troubleshooting ACLs 326Study Resources 326Day 8: NAT 329CCNA 200-301 Exam Topics 329Key Topics 329NAT Concepts 329Configuring Static NAT 334Verifying NAT 336Troubleshooting NAT 337Study Resources 338Day 7: WAN, VPN, and IPsec 339CCNA 200-301 Exam Topics 339Key Topics 339WAN Topologies 339WAN Connection Options 340VPN Technology 346Study Resources 355Day 6: QoS 357CCNA 200-301 Exam Topic 357Key Topics 357QoS 357Study Resources 364Day 5: CDP and LLDP 365CCNA 200-301 Exam Topic 365Key Topics 365CDP Overview 365LLDP Overview 371Study Resources 374Day 4: Device Monitoring, Management, and Maintenance 375CCNA 200-301 Exam Topics 375Key Topics 375SNMP Operation 375Configuring SNMP 378Verifying SNMP 378Syslog 380Network Time Protocol 384Cisco IOS File System and Devices 385Managing Cisco IOS Images 390Password Recovery 392Study Resources 393Day 3: Cloud, Virtualization, and SDN 395CCNA 200-301 Exam Topics 395Key Topics 395Cloud Computing 395Software-Defined Networking 399Study Resources 405Day 2: Cisco SD-Access, Ansible, and Terraform 407CCNA 200-301 Exam Topics 407Key Topics 407Cisco SD-Access 407Configuration Management Tools: Ansible and Terraform 418Study Resources 427Day 1: Data Formats, REST, and AI 429CCNA 200-301 Exam Topics 429Key Topics 429Data Formats 429RESTful APIs 432AI and ML in IT Operations 435Study Resources 442Exam Day 443Post-Exam Information 445CCNA Countdown Calendar 447Exam Checklist 4499780138214258, TOC, 10/11/2024