A bank has its head office in the financial district in the middle of a city. A bank has six branches, three in the north of the city and three in the south all 5 km from the centre and spaced 3 km apart. The bank wishes to link all its branches via private leased lines but must decide between providing an individual line to each branch via a number of inter-branch links and a smaller number of multiplexed lines to the centre. If a modem costs £100, a multiplexer/demultiplexer costs £200 and leased lines cost £100 per km per year to rent, suggest a design that will yield the most cost effective solution if the installation is to remain in operation for four years. 1st option is - link all branches by providing individual line to each branch via a number of inter branch links to the centre. 2nd option is - link all branches by providing smaller number of multiplexed lines to the centre Please calculate both options and choose the most cost effective solution for four years?
A bank has its head office in the financial district in the middle of
a city. A bank has six branches, three in the north of the city and three
in the south all 5 km from the centre and spaced 3 km apart. The bank
wishes to link all its branches via private leased lines but must
decide between providing an individual line to each branch via a
number of inter-branch links and a smaller number of multiplexed lines
to the centre. If a modem costs £100, a multiplexer/demultiplexer
costs £200 and leased lines cost £100 per km per year to rent, suggest
a design that will yield the most cost effective solution if the
installation is to remain in operation for four years.
1st option is - link all branches by providing individual line to each branch via a number of inter branch links to the centre.
2nd option is - link all branches by providing smaller number of multiplexed lines to the centre
Please calculate both options and choose the most cost effective solution
for four years?
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