Which is a connectionless protocol in the transport layer? What are the small chunks of data called?

According to alisa miller foreign news bureaus

Rachel completed typing an official document with a word processing program. she wants to make sure that her document has no typographical errors. she also wants all headings to have the same font. which features in a word processing program should she use? rachel should use the feature in a word processing program to find typographical errors. she should apply to have uniform headings.

Donna and her team of five have invented a new gadget for the science exhibition in their college. which intellectual property right will protect their invention?