31 Days Before Your CCNA Exam

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Day 4 321Figure 4-12Site-to-Site VPNsCompanyHead OfficeBranch AHead OfficeVPN Gateway(VPN Concentrator)VPN TunnelVPN TunnelISP AInternetISP CLANISP BRemote VPN Gateways(VPN-Enabled Routers)IntranetWeb/TFTPServerLANBranch B■Remote-access VPNs: Remote-access VPNs enable individual hosts, such as telecommuters,mobile users, and extranet consumers, to access a company network securely over theInternet, as shown in Figure 4-13. Each host typically has VPN client software loaded or usesa web-based client.Figure 4-13Remote-Access VPNsCompanyHead OfficeVPN GatewayVPN TunnelInternetISPDSLCableVPN Client LoginUser Name:IntranetPassword:WEB/TFTPServer Teleworker 1 Teleworker 2
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31 Days BeforeYour CCNA ExamSecond
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ixThe TCP/IP Application Layer 21Th
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xiDuplex and Speed Mismatches 66Com
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xiiiDay 20: Host Addressing, DHCP,
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xvThe Cisco IOS File System 179IFS
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xviiRouter ID 235Modifying the OSPF
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xixTypes of ACLs 280ACL Identificat
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xxiDay 3: PPP Configuration and Tro
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xxiiiPart IX: Exam Day and Post-Exa
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xxv■■■■■Italic indicates
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xxviiand advancing their IT careers
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xxixA simlet is similar to a testle
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Part INetworking BasicsDay 31:Day 3
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Day 31Network Devices, Components,
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Day 31 5■■■Redundant componen
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Day 31 7LANs and WANsA local-area n
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Day 31 9Logical topologies refer to
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Day 31 11Figure 31-5An Example of t
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Day 30Network Models and Applicatio
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Day 30 15The following mnemonic phr
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Day 30 17Growth of Network-Based Ap
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Day 30 19Study ResourcesFor today
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Day 29Network Data Flow from End-to
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Day 29 23Figure 29-1TCP Header Fiel
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Day 29 25Flow ControlFlow control i
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Day 29 27The TCP/IP Network Access
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Day 29 29Using Layers to Troublesho
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Part IISwitching Concepts andConfig
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Day 28Connecting Switches and Ether
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Day 28 35Figure 28-3Ethernet Physic
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Day 28 37Figure 28-4TIA/EIA Standar
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Day 28 39Ethernet FramingThe physic
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Network Segmentation andSwitching C
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Day 27 45Figure 27-1Switch Forwardi
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Day 27 47Figure 27-2Sources for Cis
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Day 27 49Keyboard CommandWhat Happe
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Day 27 51Storing and Erasing Config
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Day 26Basic Switch Configuration an
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Day 26 55■■Although the enable
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Day 26 57Table 26-2Actions When Por
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Day 25Verifying and Troubleshooting
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Day 25 63By using the ping command
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Day 25 65Example 25-4Tracing the Ro
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Day 25 67Output queue: 0/40 (size/m
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Day 25 69Sending CDPv2 advertisemen
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Day 24Switching Technologies and VL
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Day 24 73■■■■Black hole VLA
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Day 24 75Figure 24-3Fields of the 8
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Day 24 77Notice in the figure that
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Day 24 79■■Multiple frame trans
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Day 24 81The main changes with RSTP
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Day 24 83Figure 24-8 shows a simple
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Day 23VLAN and Trunking Configurati
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Day 23 89S2(config-vlan)#end%SYS-5-
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Day 23 91Operational private-vlan:
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Day 23 93Administrative Mode: trunk
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Day 22VTP and InterVLAN RoutingConf
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Day 22 99Example 22-2Configuring th
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Day 22 101Local updater ID is 0.0.0
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Day 22 103b. The switches must have
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Day 22 105To verify the configurati
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Part IIIAddressing the NetworkDay 2
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Day 21IPv4 Address SubnettingCCNA 6
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Day 21 111Note Today your ISP assig
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Day 21 113The best way to demonstra
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Day 21 1151. There are 16 host bits
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Day 21 117■ Subnet 0: 172.30.4.0/
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Day 21 119Step 5Count the number of
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Day 21 121Resource Chapter Topic Wh
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Day 20Host Addressing, DHCP, and DN
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Day 20 125Figure 20-3 ARP Maps Laye
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Day 20 127■■■■■.au: Austr
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Day 20 129Figure 20-5DHCP Sample To
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Day 20 131Primary Dns Suffix . . .
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Day 20 133Reply from 192.168.10.1:
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Day 19Basic IPv6 ConceptsCCNA 640-8
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Day 19 139IPv6 Address StructureYou
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Day 19 141The current global unicas
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Day 19 143■■Dual stacking: An i
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Part IVRouting Concepts and Configu
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Day 18Basic Routing Concepts■■D
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Day 18 149PC2 sends back an ARP rep
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Day 18 151Some distance vector prot
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Day 18 153C 192.168.2.0/24 is direc
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Day 18 155Table 18-3Comparing Featu
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Day 18 157Figure 18-3 shows the rat
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Day 17Connecting and Booting Router
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Day 17 163Figure 17-1How a Router B
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Day 17 165Figure 17-3WAN Connection
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Basic Router Configuration andVerif
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Day 16 169Next, name the router and
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Day 16 171The IP address should be
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Day 16 173Outputoutputoutput hangLa
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Day 16 175Verifying Network Connect
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Day 15Managing Cisco IOS andConfigu
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Day 15 181Example 15-3Listing Direc
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Day 15 183Figure 15-3Sample IOS Ima
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Day 15 185Restoring an IOS ImageVer
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Day 15 187The pertinent command for
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Day 14Static, Default, and RIP Rout
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Day 14 193The remote networks that
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Day 14 195Example 14-5R2 Routing Ta
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Day 14 197The trace is successful b
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Day 14 199In Figure 14-3, we are us
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Day 14 201Figure 14-4Interpreting s
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Day 14 203Passive InterfacesIn the
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Day 14 205Assuming all interfaces a
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Day 14 207Example 14-17 Verifying D
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Day 14 209■■■■Make sure tha
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Day 13EIGRP RoutingCCNA 640-802 Exa
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Day 13 213Figure 13-2EIGRP Packet H
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Day 13 215Figure 13-3EIGRP Configur
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Day 13 217Now R3 will send traffic
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Day 13 219EIGRP Default RouteThe
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Day 13 221The seconds value for bot
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Day 13 223EIGRP-specific terms you
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Day 13 225Figure 13-6DUAL Finite St
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Day 12OSPF RoutingCCNA 640-802 Exam
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Day 12 229Figure 12-2OSPF Packet He
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Day 12 231The following criteria is
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Day 12 2333. Each router builds a l
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Day 12 235Example 12-1Configuring O
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Day 12 237Table 12-4Equivalent band
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Day 12 239Example 12-5Modifying Hel
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Day 12 241router is advertising, th
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Day 12 243As highlighted in Example
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Day 11Troubleshooting RoutingCCNA 6
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Day 11 247However, if any link betw
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Day 11 249OSPF and EIGRP both use H
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Part VWireless Concepts andConfigur
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Day 10Wireless Standards, Component
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Day 10 255Table 10-4FCC Unlicensed
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Day 10 2574. After the entire frame
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Day 10 259Table 10-7Comparisons of
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Day 9Configuring and Troubleshootin
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Day 9 263— SSID, which is a 32-ch
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Basic Security Concepts andConfigur
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Day 8Mitigating Security Threats an
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Day 8 269Sometimes employees choose
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Day 8 271Threats to Physical Infras
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Day 8 273General Mitigation Techniq
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Day 8 275Maintaining SecurityThe ne
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ACL and NAT Concepts andConfigurati
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Day 7ACL Concepts and Configuration
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Day 7 281■Reduce the amount of ty
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Day 7 283RouterX(config)#access-lis
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Day 7 285Command Parametersource an
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Day 7 287Extended Named ACL Steps a
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Day 6Verifying and Troubleshooting
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Day 6 291permit tcp host 10.22.22.1
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Day 6 293Example 6-7Solution 2: Cor
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Page 654: Day 5NAT Concepts, Configuration, a
Page 658: Day 5 2994. R2 modifies the packet
Page 662: Day 5 301Configuring Static NATStat
Page 666: Day 5 303Configuring NAT OverloadCo
Page 670: Day 5 305Use the debug ip nat comma
Page 674: Part VIIIWAN Concepts and Configura
Page 678: WAN and VPN TechnologiesDay 4CCNA 6
Page 682: Day 4 311Figure 4-2 shows the name
Page 686: Day 4 313■■Connectionless syste
Page 690: Day 4 315Figure 4-6Analog DialupPST
Page 694: Day 4 317Frame Relay differs from X
Page 698: Day 4 319Broadband WirelessUntil re
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382 applications, network-based app
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384 commandsshow ip route, 11, 152,
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386 DHCP (Dynamic Host Configuratio
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388 forward explicit congestion not
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390 IP multicastIP multicast, 72ip
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392 neighbor adjacency issues, trou
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394 PVC (permanent virtual circuit)
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396 static routing, dynamic routing
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398 URL prefixes for specifying fil
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CCNA Countdown CalendarThe lines af
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31 Days Before Your CCNA Exam

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