200-301 study guide

200-301 study guide.Networks that use redundant devices and links sometimes require additional protocols to handle the network changes that occur when redundant devices are added. This chapter will discuss one such type of protocol, called the First Hop Redundancy Protocol (FHRP).FHRP allows network engineers to install multiple routers within a subnet that together act as a single default router.FHRP makes these routers appear to be the host's only default router, and the host can do nothing about the redundant router while still enjoying the benefits of redundancy. Messages are exchanged between routers to coordinate which router will do the job, how to identify problems that occur with the router, and to take over the work of another router if needed.This chapter divides the main content into two parts. The first part introduces the rationale for the FHRP protocol and describes the three FHRP options: the Hot Standby Routing Protocol (HSRP), the Virtual Router Redundancy Protocol (VRRP), and the Gateway Load Balancing Protocol (GLBP). Part II focuses on the configuration and verification of HSRP and GLBP.6.1 "Do I Know This Already?" A small testThe quizzes in this section allow the reader to determine whether it is necessary to skim the chapter or a major section, or even to read the chapter's "Test Prep" directly. The answers are listed at the bottom of the page following the quiz. For a full explanation, see Appendix C on the accompanying CD.Table 6-1 Chapter Basics and Related Test QuestionsFHRP Concepts 1.4FHRP Configuration and Verification 5 ~ 6(1) R1 and R2 (addresses 10.1.19.1 and 10.1.19.2 respectively) are connected to the same EthernetVLAN, the subnet is 10XPXP 19.0/25. configured with the ip address interface subcommand. Host A uses 10.1.19.1 as the default router and Host B uses 10.1.19.2 as the default router. They are not using FHRP. which of the following is the problem with this LAN?a. The design violates IPv4 addressing rules because both routers cannot be connected to the same LAN subnet b. If one router fails, neither can send packets out of the subnet c. If one router fails, both will use the remaining router as the default router d. If one router fails, the host using it as the default router will not be able to send packets