Consider a computer system with three users: alice, bob, and cathy. alice owns the file file, and bob and cathy can read it. cathy can read and write bob's file bfile, but alice can only read it. only cathy can read and write her file cfile. assume that the owner of each of these files can execute his/her file. 1.a.) list acl of objects. 1.b.) list capabilities of subjects. 1.c.) create the corresponding access control matrix for this scenario. 1.d.) by using the appropriate primitive commands in section 2.3 of the textbook, write the primitive commands for the following access right changes: - cathy gives alice permission to read cfile. - alice removes the right for bob to read the file. 1.e.) show the new access control matrix after 1d is executed.

Signal sets company contracts to deliver one hundred 52-inch plasma high-definition television sets to a new retail customer, tuner tv store, on may 1, with payment to be made on delivery. signal tenders delivery in its own truck. tuner's manager notices that some of the cartons have scrape marks. tuner's owner phones signal's office and asks whether the sets might have been damaged as they were being loaded. signal assures tuner that the sets are in perfect condition. tuner tenders signal a check, which signal refuses, claiming that the first delivery to new customers is always for cash. tuner promises to pay the cash within two days. signal leaves the sets with tuner, which stores them in its warehouse pending its "grand opening sale" on may 15. two days later, tuner's stocker opens some of the cartons and discovers that a number of the sets are damaged beyond ordinary repair. signal claims tuner has accepted the sets and is in breach by not paying on delivery. will signal succeed on these claims? explain.

Amanda needs to create an informative print brochure for her local library’s fundraiser dinner. what critical detail must she have before she starts designing the brochure?

Perform the following tasks: a. create a class named testclass that holds a single private integer field and a public constructor. the only statement in the constructor is one that displays the message “constructing”. write a main()function that instantiates one object of the testclass. save the file as testclass.cpp in the chapter 08 folder. run the program and observe the results. b. write another main()function that instantiates an array of 10 testclass objects. save the file as test class array.c . run this program and observe the results.