A network configuration that provides a backbone in a centralized location, to which all subnetworks are attached. A collapsed backbone is implemented in a router or switch that uses a high-speed backplane that can handle the simultaneous traffic of all or most of its ports at full wire speed. network configuration that provides a backbone in a centralized location, to which all subnetworks are attached. A collapsed backbone is implemented in a router or switch that uses a high-speed backplane that can handle the simultaneous traffic of all or most of its ports at full wire speed.
The most densely populated cities. With a population density of 44,500 people per square kilometre, Dhaka, the capital of Bangladesh, is the most crowded city on the planet by quite a distance. According to UN Habitat data, of the top 10 most densely populated cities in the world, six are in Asia, three are in Africa and one is in South America:
Surprisingly, none of China's cities make the list of the top 30 most densely populated cities in the world, most of which are in India, the Philippines, France and other countries. Macau, however, is the 36th most densely populated city with a density of 18,568 people per square kilometer (48,092 per square mile).he density figures change dramatically when you look at the largest urban areas, however. Shanghai, the largest city in the country and the world, has a population density of 3,700 people per square kilometer, or 9,700 people per square mile.