With Internet Group Management Protocol (IGMP) snooping, Layer 2 devices also can make intelligent multicast forwarding decisions by examining the contents of each frameâs Layer 3 IP header. Consider the example of a heterogeneous Layer 2 and Layer 3 network that does not use IGMP snooping.ith Internet Group Management Protocol (IGMP) snooping, Layer 2 devices also can make intelligent multicast forwarding decisions by examining the contents of each frameâs Layer 3 IP header. Consider the example of a heterogeneous Layer 2 and Layer 3 network that does not use IGMP snooping.
â¢ Volatile substances have a tendency to vaporize whereas nonvolatile substances do not have a tendency to vaporize. â¢ Volatile substances have a high vapor pressure at normal room temperature and pressure. Nonvolatile substances do not have a high vapor pressure in these conditions.
Non-volatile memory is typically used for the task of secondary storage, or long-term persistent storage. The most widely used form of primary storage today is a volatile form of random access memory (RAM), meaning that when the computer is shut down, anything contained in RAM is lost. However, most forms of non-volatile memory have limitations that make them unsuitable for use as primary storage.