Write a function called substring() to extract a portion of a character string. The function should be called as follows: substring(source, start, count, result); where source is the character string from which you are extracting the substring, start is an index number into source indicating the first character of the substring, count is the number of characters to be extracted from the source string, and result is an array of characters that will contain the extracted substring. Please refer to Kochan, Chapter 9, problem 4 for more details.

Wich technology can a website use to allow you to listen to a concert live over the internet?

What is the digital revolution and how did it change society? what are the benefits of digital media?

1. which of the following statements are true about routers and routing on the internet. choose two answers. a. protocols ensure that a single path between two computers is established before sending packets over it. b. routers are hierarchical and the "root" router is responsible for communicating to sub-routers the best paths for them to route internet traffic. c. a packet traveling between two computers on the internet may be rerouted many times along the way or even lost or "dropped". d. routers act independently and route packets as they see fit.