questions and answers
Mobile track questions
1. During the 1930s and 1940s, inventor Donald Hings helped to develop a two-way radio
device called the Walkie-Talkie. For which government did Hings work during the Second
World War?
2. Name the first commercially available mobile phone.
3. Expand PSTN
4. Which country hosted the launch of the first commercial cellular network?
5. Which company launched the first cellular network in the world?
6. In a cellular system, as the distributed mobile transceivers move from cell to cell during
an ongoing continuous communication, switching from one cell frequency to a different cell
frequency is done electronically without interruption and without a base station operator or
manual switching. This is called the _________
7._____________ is a standard developed by the European Telecommunications
Standards Institute (ETSI) to describe the protocols for second-generation (2G) digital
cellular networks used by mobile devices such as mobile phones and tablets.
