Operating Systems Examination Quiz
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Operating Systems Examination Quiz

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Questions and Answers

What is the purpose of an operating system and what are the characteristics of modern operating systems?

The purpose of an operating system is to manage computer hardware and software resources and provide common services for computer programs. Modern operating systems have characteristics such as multitasking, multi-user, multiprocessing, and virtual memory.

What is scheduling and explain the FCFS (First Come First Serve) scheduling algorithm with an example?

Scheduling is the process of determining which process to run when. FCFS is a non-preemptive scheduling algorithm where the process that arrives first is executed first. For example, if processes P1, P2, and P3 arrive in that order, they will be executed in the same order, i.e., P1, P2, P3.

What is deadlock and what are the conditions for deadlock?

Deadlock is a situation in which two or more competing actions are each waiting for the other to finish, preventing any from finishing. The conditions for deadlock are mutual exclusion, hold and wait, no preemption, and circular wait.

Explain the multiple partition allocation method with a proper example.

<p>Multiple partition allocation is a memory management technique where the main memory is divided into fixed-size partitions to accommodate multiple processes. For example, in a system with 4 partitions, processes P1, P2, P3, and P4 can each occupy one partition.</p> Signup and view all the answers

What is cryptography and explain it with a suitable example?

<p>Cryptography is the practice and study of techniques for secure communication. It involves converting ordinary text (plaintext) into unintelligible text (ciphertext) and vice versa. An example is the encryption of sensitive data such as credit card information during online transactions.</p> Signup and view all the answers

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