a) An international organisation has regional offices on all 7 major continents throughout the world in hard-to-reach locations.

Question

When designing a high-speed WAN for this organisation, compare and contrast different WAN solutions that would be appropriate for implementing a solution considering geographic coverage, transmission speeds and suitability.
b) Compare and contrast the advantages and disadvantages of following WAN topologies:
i) Bus;

ii) Full or Partial Mesh;

iii) Star/Hub & Spoke;

iv) Ring.

c) Explain the difference between connection orientated and connectionless networks with practical examples.

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