This chapter covers the following exam topics:
4.0 Infrastructure Services
4.1 Configure, verify, and troubleshoot basic HSRP
5.0 Infrastructure Maintenance
5.6 Troubleshoot basic Layer 3 end-to-end connectivity issues
Businesses rely on their networks to get their work done. Some businesses rely more on the network than others, with a direct connection between network outages and lost revenue. For instance, when the network is down, some companies lose customers, or lose sales, or they cannot ship their goods to market, affecting sales volume in the future. Companies can design their networks to use redundancy—extra devices and extra links—so that ...