COP4600 FINAL EXAM WITH CORRECTLY ANSWERED QUESTIONS

COP4600 FINAL EXAM WITH CORRECTLY ANSWERED QUESTIONS process - CORRECT ANSWER-A program in execution program - CORRECT ANSWER-A passive executable file stored on disk. Becomes process when executable file is loaded into memory. One of these can be several processes progress - CORRECT ANSWER-If no process is executing in its critical section and some processes wish to enter their critical sections, then only those processes that are not executing in their remainder sections can participate in deciding which will enter its critical section next, and this selection cannot be postponed indefinitely. protection - CORRECT ANSWER-Any mechanism for controlling access of processes or users to resources defined by the OS race condition - CORRECT ANSWER-A situation where multiple processes access the same data concurrently and the outcome depends on the order in which the processes execute rate monotonic scheduling - CORRECT ANSWER-A scheduling algorithm where a priority is assigned based on the inverse of its period. Shorter periods = higher priority. Longer periods = lower priority. resource allocation graph - CORRECT ANSWER-This graph consists of a set of vertices V and a set of edges E. The set of vertices V is partitioned into two different types of nodes: P = {P1, P2, ..., Pn}, the set consisting of all the active processes in the system, and R = {R1, R2, ..., Rm RPC - CORRECT ANSWER-Abstracts procedure calls between processes on networked systems safe state - CORRECT ANSWER-System is in this if there exists a sequence P1, P2, ..., Pn of ALL the processes in the system such that for each Pi, the resources that Pi can still request can be satisfied by currently available resources + resources held by all the Pj, with j i security - CORRECT ANSWER-Defense of the system against internal and external attacks