In the accompanying figure, the area beneath the right portion of the curve represents the more popular items that meet the needs of larger numbers of people.

TCP and UDP are protocols working at the transport layer of the OSI model. They perform multiplexing using ________

A) MAC addresses B) IP addresses C) Port numbers D) Application names

Give serially equivalent interleaving of T and U with the following properties:

(i) that is strict; (ii) that is not strict but could not produce cascading aborts; (iii) that could produce cascading aborts.