200-301 new questions

200-301 new questions.The chapter is divided into three main sections, which provide relevant information from a network troubleshooting perspective. The first section reviews IPv4 routing on hosts and routers. This knowledge can be used to predict normal operation when troubleshooting network problems. The second section discusses the ping command, in particular how it isolates the problem to smaller and smaller areas of the network and gradually narrows the scope of the cause of the failure - always trying to identify the root cause. The last section focuses on the traceroute command, which has the same purpose as the ping command section: to find a way to isolate the problem.4.1 "Do I know this already?" Mini-testsThe chapter on troubleshooting in this book covers concepts from many other chapters, and even includes some chapters from the Cisco CCENT/CCNA ICND1 (100-101) Certification Exam Guide, as well as answers to some of the more difficult questions on the CCNA exam, so readers should read these relevant chapters first, regardless of their current level of knowledge. For this reason, none of the troubleshooting chapters have a "Do I already know this?" quizzes. Of course, if you are able to fully master the IP routing troubleshooting content in this book and the Cisco CCENT/CCNA ICND1 (100-101) Certification Exam Guide, you can skip most of this chapter and read Section 4.3 directly.88 Chapter 4, Part 1 Troubleshooting IPv4 Routing4.2 Basic Content4.2.1 Predicting Normal IPv4 Routing BehaviorWhen troubleshooting problems in a network, different people will use different methods. No one approach is the best approach. Nevertheless, as mentioned in the "Troubleshooting LAN Switching" section in Chapter 3 of this book, there is no single best method. When learning about troubleshooting, it is useful to have some systematic approach. Therefore, this chapter (as well as other troubleshooting topics in this book) uses the same basic strategies to solve problems, as follows.(1) Predict how the object will work properly.(2) When a problem occurs, isolate the problem to a specific cause on the smallest equipment scope possible.(3) Discover the root cause of the problem and fix it.