Practice Disk Scheduling (9.3.3) - I/O Systems - Operating Systems
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Disk Scheduling

Practice - Disk Scheduling

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does the FCFS algorithm stand for?

💡 Hint: Think about how requests are managed based on their order.

Question 2 Easy

Which scheduling algorithm selects the nearest request to the current head?

💡 Hint: It optimizes performance by reducing distance.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does SSTF stand for?

Standard Shortest Time First
Shortest-Seek-Time First
Standard Seek Time First

💡 Hint: Consider the purpose of minimizing seek distances.

Question 2

Is it true that the LOOK algorithm can avoid unnecessary movements?

True
False

💡 Hint: Think about how it compares to SCAN in handling requests.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given the requests 75, 30, 200, 180 starting at 100, calculate total head movement for SCAN and C-SCAN and explain which is more efficient.

💡 Hint: Calculate each move step-by-step and compare.

Challenge 2 Hard

If you were to implement an IO queue with random arrival times for requests, discuss which disk scheduling algorithm would most likely suffer from starvation, and give an example.

💡 Hint: Consider how arriving requests can overlap.

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Reference links

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