State one criteria that makes a piece of malware a virus.

The physical parts or components of a computer system is called .

In a game with three frames, where will the objects on layer 1 appear? a. next to the play area b. in the middle of the game behind everything else d. in front of everything else select the best answer from the choices provided

Implement a document scanning function wordcountengine, which receives a string document and returns a list of all unique words in it and their number of occurrences, sorted by the number of occurrences in a descending order. if two or more words have the same count, they should be sorted according to their order in the original sentence. assume that all letters are in english alphabet. you function should be case-insensitive, so for instance, the words “perfect” and “perfect” should be considered the same word.