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CSCI 340 – Operating Systems | Midterm Study Guide

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CSCI 340 midterm exam, covering core operating systems principles. It reviews process management (process states, PCB, context switching, fork, exec, system calls), scheduling algorithms (FCFS, SJF, RR, preemptive vs. cooperative, aging, convoy effect, starvation), and memory management (stack, heap, data, text sections). Additional topics include multithreading (one-to-one model, Pthreads API, thread-shared resources), inter-process communication (message passing vs. shared memory), OS structures (monolithic, microkernel, modular), Linux-specific details (task_struct, init process, system calls), and performance concepts like Amdahl’s Law. The guide also covers signals, core dumps, and dispatcher functions.

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CSCI 340
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CSCI 340
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CSCI 340

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Uploaded on
September 6, 2025
Number of pages
16
Written in
2025/2026
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Exam (elaborations)
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The ______ occurs in first-come-first-served scheduling when a process with a long CPU
burst occupies the CPU.


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convoy effect




Which of the following is not an operating system service?

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graphical user interface




Which of the following scheduling algorithms gives the minimum average waiting time
for a given set of processes?


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SJF




Which of the following selects from among the processes that are in the ready queue
to execute and allocate the CPU to one of them?


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CPU scheduler




Which of the following system architectures involves multiprocessor scheduling?


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all of the above/multicore cpus/multithreaded cores/NUMA
systems/heterogeneous multiprocessing

, Which of the following operating system structure involves using loadable kernel
module in design?


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modular approach




Which of the following criteria is more important from the point of view of a particular
process?


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turnaround time




Which of the following process state will be switched from "running" state when an
interrupt occurs?


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ready




Which of the following cases could force a process removed from the CPU?


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