31 Days Before Your CCNA Exam

134 31 Days Before Your CCNA ExamThe tracert to www.cisco.com shows responses from the routers along the path. The local hostsends a packet to the designation address of 198.133.219.2. The first response is a response fromthe host’s default gateway, 10.20.0.94.When the final destination is reached, the host responds with either an ICMP Port Unreachablemessage or an ICMP Echo Reply message. In the case of Example 20-8, the asterisk (*) indicatesthe ICMP Time Exceeded message that there were no responses from the destination.Study ResourcesFor today’s exam topics, refer to the following resources for more study.Resource Chapter Topic Where to Find ItFoundational ResourcesCCNA Exploration Online Chapter 3, “Application Layer DNS Services and Section 3.3.1Curriculum: Network Functionality and Protocols” ProtocolFundamentals DHCP Section 3.3.5Chapter 6, “Addressing the Static or Dynamic Section 6.3.2Network—IPv4”Addressing for EndUser DevicesTesting the Section 6.6Network LayerChapter 9, “Ethernet” Address Resolution Section 9.7Protocol (ARP)CCNA Exploration Online Chapter 1, “Introduction to Implementing Basic Section 1.2.1Curriculum: Routing Routing and Packet Addressing SchemesProtocols and Concepts Forwarding”CCNA Exploration Online Chapter 7, “IP DHCP Section 7.1Curriculum: Accessing Addressing Services”the WANCCNA Exploration Chapter 3, “Application DNS Services and pp. 77–81Network Fundamentals Layer Functionality ProtocolCompanion Guide and Protocols” DHCP pp. 87–89Chapter 6, “Addressing Static or Dynamic pp. 200–201the Network: IPv4”Addressing for EndUser DevicesTesting the pp. 228–235Network LayerChapter 9, “Ethernet” Address Resolution pp. 355–361Protocol (ARP)CCNA Exploration Routing Chapter 1, “Introduction to Implementing Basic pp. 24–25Protocols and Concepts Routing and Packet Addressing SchemesCompanion Guide Forwarding”CCNA Exploration Chapter 7, “IP Addressing DHCP pp. 431–460Accessing the WAN Services”Companion GuideICND1 Official Exam Chapter 5, “Fundamentals of Network Layer pp. 121–125Certification Guide IP Addressing and Routing” Utilities