ccna practice test 200-125 free online

ccna practice test 200-125 free online.WAN services are used.Ethernet uses a logical bus topology, but its physical topology can be bus, star, or point-to-point.1.3 Certification SummaryThis chapter focuses on two topics: introduction to networking and network topology. Networks connect disparate components together, allowing users to share resources such as applications and data, printers, and network storage.Factors to consider when implementing and maintaining a network design include cost, security, speed, topology, scalability, reliability, and availability. Common components in a network include cables, computers, switches, routers, firewalls, wireless access points, and more. Networks come in a variety of shapes and sizes: headquarters, branch offices, SOHOs, and mobile users.Network topology describes how network components are physically connected by cables and how they logically communicate with each other. Topology types include point-to-point, star, bus, and ring. Mesh describes how components are interconnected; in a full mesh topology, each component is able to communicate directly with all other components; in a partial mesh topology, not every component is able to communicate directly with all other components: intermediate components may be required to transmit information to the final destination.Chapter 1 Networks 111.4 Two-Minute PunchIntroduction to Networking . A network contains all the hardware and software components needed to connect different computers together, allowing users to easily access information and thus be more productive. To build a network, you need computers, network devices, and media (cables or wireless connections). ...SOHO refers to a person who works from home or a small office. A branch refers to a small group of users connected to each other in a small area; mobile users may connect to the network from any remote site; and corporate headquarters is the site where important services and applications are located that corporate headquarters, branch offices, SOHOs, and mobile users all need to access.Network topology