a collision domain is as the name implies a part of a network where packet collisions can occur a collision occurs when two devices send a packet at the same time on the shared network segment the packets collide and both devices must send the packets again which reduces network efficiencyollisions are often in a hub environment because each port on a hub is in the same collision domain by contrast each port on a bridge a switch or a router is in a separate collision domain
Type: Composite volcano with caldera. The 1883 explosion on an uninhabited island in Indonesia was one of the most catastrophic in history. Before the eruption, this island in the Sunda Straits between Java and Sumatra islands was made up of three stratovolcanoes that had grown together.ype: Composite volcano with caldera. The 1883 explosion on an uninhabited island in Indonesia was one of the most catastrophic in history. Before the eruption, this island in the Sunda Straits between Java and Sumatra islands was made up of three stratovolcanoes that had grown together.
...I saw with amazement that the island of Krakatoa, on my first trip to Sumatra [June 1679] completely green and healthy with trees, lay completely burnt and barren in front of our eyes and that at four locations was throwing up large chunks of fire.he eruption destroyed two-thirds of the island of Krakatoa. Eruptions in the area since 1927 have built a new island at the same location, named Anak Krakatau (which is Indonesian for Child of Krakatoa). Periodic eruptions have continued since, with recent eruptions in 2009, 2010, 2011, and 2012.