A mobile operator has a total bandwidth of 10 MHz available for the GSM system. In GSM, each channel occupies 200 kHz band, compute the number of channels available per cell if a system uses 3 cell clusters. Any idea?

A site is a collection of one or more IP subnets, connected by a high-speed link. To ensure adequate connections between these subnets:

a. Each subnet must use the Domain Name System (DNS).

b. Domains in the same geographical area should be placed within the same site.

c. Available bandwidth should be at least 128 Kbps.

d. Replication should be scheduled to occur during times when network activity is low.

Part (f) [3 MARKS] Complete method change-planes in class Flight: def change-planes(self, other_airplane): (Flight, Airplane) -> bool If other airplane has enough seats to hold the passengers on this flight, use other airplane for this flight. Whether or not we change to other_airplane, return the number of available seats on this flight (seats not currently occupied by passengers). >>> a1 = Airplane ('Boeing 747', '19643', 366, 45267.7) >>> f = Flight(a) >>> f.add('Myrto') True >>> f.add('Jen' True >>> a2 = Airplane ('Bombardier Dash 8', '11234', 39, 6444.6) >>> f.change-planes (a2) >>> a3 = Airplane('Cessna 150E', '9378', 1, 824.8) >>> f.change-planes (a3) 37