Consider a system with three users: Alice, Jin and Priya. Each owns files alicerc, jinrc and priyarc correspondingly. Jin and Priya can read alicerc, Priya can read and write jinrc, Alice can read jinrc. Only Alice can read and write alicerc, the file she owns. Assume that each file can be executed by its owner. a. Create the access control matrix that describes the system. b. Create access control lists for all three files.

What is linux? an open source operating system a version of ms dos the first version of unix the newest technology available

Imagine that you have a friend who is starting a small business and is interested in using social media to spread the word. he is not certain that it is a good move, and has come to you for . would you advise him to use social media to advertise his business? why or why not? support you answer with information from the text.

3. (5 points) describe what would be printed by the code below or what error would occur. const char* cstr = "0123456"; const char* ptr = & cstr[4]; cout < < ptr[-1] < < ptr < < endl; 1 4. (5 points) theseus has been trapped in a maze with a minotaur, which is trying to capture him. each round, theseus and the minotaur move through the maze; theseus towards the exit, and the minotaur towards theseus. theseus can move in any of the four cardinal directions, or he can wait for a round to see how the minotaur moves. write code that creates a data type to represent the possible moves that theseus could make.