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1. A database at a college is required to support the following requirements. Complete the information-level design for this set of requirements. Use your own experience to determine any constraints you need that are not stated in the problem. Represent the answer in DBDL.
a. For a department, store its number and name.
b. For an advisor, store his or her number and name and the number of the department to which he or she is assigned.
c. For a course, store its code and description (for example MTH110 or Algebra).
d. For a student, store his or her number and name. For each course the student has taken, store the course code, course description, and grade received. In addition, store the number and name of the student's advisor. Assume course description, and grade received. In addition, store the number and name of the student's advisor. Assume that an advisor may advise any number of students but that each student has just one advisor.
How many page faults would occur under pure demand paging (all frames are initially empty), assuming four frames are available, under FIFO, LRU.
What is race condition in this protocol?debitcard machine determine current value of card in dollars which is stored in value x.
Using exactly one semaphore, create an algorithm which prevents deadlock. Do not be concerned about starvation and inefficiency.
when a process requests for I/O operations, it will suspend and another process will need to be selected for execution. What is the CPU utilization for a round-robin scheduler.
The software house has been contacted by a Governmental Nuclear Reactor Agency that wants to change the current Operating System of their plant.
Define the term context switch. Explain how context switching takes place. (use a diagram, with two processes)
The purpose of this program is to change such that it makes use of the IPC facilities provided by UNIX.
Show how to implement barriers using semaphores. Your solution should avoid busy-waiting. Be explicit about any initializations that you need to assume.
The Shortest Job Next (SJN) algorithm queues processes in a way that the ones that use the shortest CPU cycle will be selected for running rst.
Explain the following terms in relation to linear programming problems- (1) decision variables (2) objective function
What is Life Cycle Costing. Describe briefly the methodology for Life Cycle Costing. What are the criteria to consider when a procurement officer is faced with the decision of procuring a used equipment instead of a new one.
Simulation of Elevator and Shortest Seek Time First
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