In trying to achieve a feasible solution to a network design

In trying to achieve a feasible solution to a network design problem companies can use all of the following methods except an exact optimization technique a heuristic that has been proven to work for similar problems a simulation method all of the above none of the above

Solution

1.Exact optimization technique ;

The optimization technique is used to design and analysis the communication systems in the respected organizations.The optimization technique is focused on the high speed internet core and cross layer design in wireless ad hod networks.So in network design problem companies we can use the optimization technique.

2.Heuristic technique;

The heuristic technique is totally different from optimization technique and it is used to solve the urban network design problem.The solution to this network problem consists in optimizing the layout of urban road network to designing the directions of roads and signals setting at intersection.The heuristic technique is used to reduce the complexity of the solutions.So it also used in network design problem companies.

3.Simulation method;

The simulation method is need because to analyze the network communication in analytical analysis and simulation method .It is representation of intersection process as an another process.Simulation method is mainly useful to statistical analysis of data .So it also used in network designing .

SO THE ANSWER IS OPTION 4 ALL OF THE ABOVE