SECTION C: The speed and quality of Internet con- nections vary. For email and browsing the Web, speeds of Mbps are acceptable, whereas Skype video calls require 1.5 Mbps connections. Your band- width is the top speed allowed by your Internet access plan. You can use to check the latency of an Internet connection. You can use online tools to check for packet loss and which is the variability in packet latency. Another utility called reports the path that your data takes to reach its destination. Options for Internet access include cable, DSL, ISDN, satellite, and fiber-to-the-home. access options include mobile satellite. Internet access is available from cellular services. Internet service offers dependable connections over coaxial and fiber cables. The fastest offering that uses the telephone network is . Satellite Internet service is available in remote areas but suffers from high rates of J. Mobile broadband services offered by cell phone companies usually entail separate fees for talk, texting, and data. Public Wi-FIL offer yet another Internet access option, though users have to be vigi- lant about security SECTION D: Local area networks use many of the same network technologies as the Internet, only on a smaller scale. Devices that access LANs are equipped with a network interface that contains circuitry for wireless or wired connections. Devices also have a physical address, in addition to the IP addresses acquired from a DHCP server. The most popular wired tech- nology is J. The most popular wireless technology is J. which can be config- ured as a(n) Jor star topology. Setting up a LAN and configuring its router is fairly easy. The first step is to change the standard to one that is secure. Next, create an) that uniquely identifies the network by name. It is also important to activate wireless to prevent wireless signals from being intercepted during transmission. A limited- access network can be created for visitors to use. By activating the router will be able to assign IP addresses to each device that joins the network. To connect to a secure LAN that is pro- tected by encryption, an encryption or password, is required. LANs can be used to access data collected by loT devices and the networks that tie these devices together. Technologies such as RFID, NFC, Bluetooth Smart, ZigBee, and Z-Wave offer -power links, essential for battery-powered devices that can't expend excess amounts of energy transmitting data. SECTION E: File sharing allows files containing docu- ments, photos, music, and other data to be accessed from computers other than the one on which they are stored. To access files on a LAN, network allows your computer to see other devices and permits other devices to see your computer. Sharing the files on your computer poses a security risk, but it is possible to specify for how your shared files can be used. File sharing is also possible across networks, as when you download files from Internet servers. One technology used for this purpose is . which provides a way to transfer files over any TCP/IP network. Another file sharing protocol called distributes the role of a file server across a collection of dispersed com- puters. Puter
