CS3260 Tutorial 2    -    (week 02/09)

2A. Consider a multinational company which may use (i) IDD, (ii) telex, (iii) email, or (iv) video conference for international communication.

a) How do these differ in terms of three communication layers?

b) Compare these technologies in terms of reach, range, and responsiveness.

2B. The conventional way for customers to manage bank accounts, withdraw/transfer funds and pay bills is to visit bank branches or ATMs. Increasingly, banks are offering alternative services that include: (i) phone banking; (ii) Internet banking; and (iii) wireless banking through mobile devices.

(a) How do these services differ in terms of the three communication layers?

(b) Compare the three services in terms of reach, range, responsiveness and other considerations.