Communication technologies - Word Drop

Ad hoc networks are created between devices as and when they are needed. A personal area network links nearby devices, which must ______ using Bluetooth before data can be exchanged. Tethering turns a smartphone into a personal ______ so a laptop can use the phone's connection to reach the internet. Public open Wi-Fi lets anyone join, often without entering a ______, which allows staff to work remotely.

Open networks are insecure because the data sent over them is not ______, so others can read it. Anyone on the same network can ______ the data, for example in a man-in-the-middle attack. A hacker could also install ______ on a connected device, which can corrupt data or damage the system.

Ad hoc networks often perform poorly. The signal can come and go, which makes the connection ______. Coverage is limited because devices must be within ______ of each other. An ad hoc connection is ______ between all the devices on it, so more devices means slower transfers.

Network availability depends on location. Rural areas have fewer residents than cities, so telecom companies invest less in the ______, such as masts. Mobile networks are also less advanced in ______ countries, where there is less money to spend. When lots of people stream video, the network's ______ is used up and other users get a poorer service. Hills, valleys and large buildings can block wireless signals and create ______.