Consider the set of all strings over the alphabet { a, b, /, . }{ a, b, /, . } that represent an ri (resource identifier). an ri is a non-empty sequence of forward-slash (//) separated non-empty strings composed of only the symbols aa and bb. the first string in the sequence may optionally be the .. symbol instead of a string composed of aa and bb. each string is separated by only one slash, and there are no slashes at the beginning or end of the sequence. write a regular expression, conformant with the syntax restrictions given at the top of this question, describing the set of strings as given above. write a (right) regular grammar describing the same set of strings.

You have just been hired as an information security engineer for a large, multi-international corporation. unfortunately, your company has suffered multiple security breaches that have threatened customers' trust in the fact that their confidential data and financial assets are private and secured. credit-card information was compromised by an attack that infiltrated the network through a vulnerable wireless connection within the organization. the other breach was an inside job where personal data was stolen because of weak access-control policies within the organization that allowed an unauthorized individual access to valuable data. your job is to develop a risk-management policy that addresses the two security breaches and how to mitigate these risks. requirementswrite a brief description of the case study. it requires two to three pages, based upon the apa style of writing. use transition words; a thesis statement; an introduction, body, and conclusion; and a reference page with at least two references. use a double-spaced, arial font, size 12.

In deadlock avoidance using banker’s algorithm, what would be the consequence(s) of: (i) a process declaring its maximum need as maximum possible for each resource. in other words, if a resource a has 5 instances, then each process declares its maximum need as 5. (ii) a process declaring its minimum needs as maximum needs. for example, a process may need 2-5 instances of resource a. but it declares its maximum need as 2.

Which tab is used to change the theme of a photo album slide show? a. design b. view c. transitions d. home