This is because octets 0 and 255 are reserved for special purposes. An address where all host part bits are 0 refers to the network, and an address where all bits of the host part are 1 is called a broadcast address.This refers to all hosts on the specified network simultaneously. number of network addresses are reserved for special purposes. 0.0.0.0 and 127.0.0.0 are two such addresses. The first is called the default route, and the latter is the loopback address. The default route has to do with the way the IP routes datagrams.
The thresher shark has a short head and a cone-shaped nose. The mouth is generally small, and the teeth range in size from small to large. By far the largest of the three species is the common thresher, Alopias vulpinus, which may reach a length of 6.1 metres (20 ft) and a weight of over 500 kilograms (1,100 lb).s a result, the long-tailed or common thresher shark, Alopias vulpinus, is also known as the fox shark. The common name is derived from a distinctive, thresher-like tail or caudal fin which can be as long as the body of the shark itself.
It hunts alone in the darkness of the night sea. Black-tipped sharks and white-tipped sharks are smaller and therefore take smaller prey than tiger sharks. The feed on small fishes at the edges of reef and in shallow waters. Not all sharks that inhabit the Great Barrier Reef are top carnivores.Whale sharks, the largest of all fish in the sea, reach 15 meters in length and grow to weights up to 15 metric tons. But their diet consists of plankton, crustaceans and small fish. Sharks are not the only predators of the reef though.he feed on small fishes at the edges of reef and in shallow waters. Not all sharks that inhabit the Great Barrier Reef are top carnivores. Whale sharks, the largest of all fish in the sea, reach 15 meters in length and grow to weights up to 15 metric tons.