Given a UNIX file system with 1024-byte blocks, how many disk accesses are needed to access bytes 2500-2503 of a file (assume the file control block is already in memory, but no data blocks are cached): (A) 1; (B) 2; (C) 3; (D); 4.

When running anti-virus software , what could be a reason where recipitent is not guaranteed that data being streamed will not get interrupted?

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Consider the following statements: struct nametype{string first; string last; }; struct coursetype{string name; int callnum; int credits; char grade; }; struct studenttype{nametype name; double gpa; coursetype course; }; studenttype student; studenttype classlist[100]; coursetype course; nametype name; mark the following statements as valid or invalid. if a statement is invalid, explain why. a.) student. course. callnum = "csc230"; b.) cin > > student. name; c.) classlist[0] = name; d.) classlist[1].gpa = 3.45; e.) name = classlist[15].name; f.) student. name = name; g.) cout < < classlist[10] < < endl; h.) for (int j = 0; j < 100; j++)classlist[j].name = name; i.) classlist. course. credits = 3; j.) course = studenttype. course;