Networks are designed in a number of ways, based on the geographical area, the technology used, user group specific, application-based, etc. But we can roughly categorize the communication networks in 2 broad categories, based on transmission: Connection-Oriented and Connectionless.

Please discuss the two categories. Your comments should include the following:

1. Point by point comparison of their advantages and disadvantages (at least 3 advantages and 3 disadvantages)
2. Point by point comparison of the design issues for both
3. Your preference among the two and a suggestion to resolve any one of its design-related problem.

Be sure to properly cite any sources.