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.
Belknap is a shield volcano on the crest if the High Cascades of Oregon. This photo shows the central vent and associated lava flows. A kipuka of older lava is near the center of the photo.The volcano began erupting about 3,000 years ago.Most of the main shield formed between 1,775 and 1,496 years ago.his photo shows the central vent and associated lava flows. A kipuka of older lava is near the center of the photo. The volcano began erupting about 3,000 years ago. Most of the main shield formed between 1,775 and 1,496 years ago.