Wireless internet is an example of telecommunications.

Anything is telecommunication if it has a transmitter and receiver. If you're a Host, then you're hosting (Transmitting) a connection. If you have a router as a customer or service, then you're receiving their signal (transmitting). You're the receiver. 

Iknow this one is you press the tab key.

Solution: the categorization of functional and non-functional requirement are as follows: some of the more typical functional requirements include: • business rules• transaction corrections, adjustments and cancellations• administrative functions• authentication• authorization levels• audit tracking• external interfaces• certification requirements• reporting requirements• historical data• legal or regulatory requirementswhile,some typical non-functional requirements are: • performance – for example response time, throughput, utilization, static volumetric• scalability• capacity• availability• reliability• recoverability• maintainability• serviceability• security• regulatory• manageability• environmental• data integrity• usability• interoperability