Synchronization & Deadlocks in Operating Systems Questions

Description

Explanation & Answer length: 1600 words.

S1 2020: ICT201 Operating System and Administration Assessment 2 Assessment type: Report (2,000 words) – individual assignment Purpose: This assessment will allow students to demonstrate that they can identify and understand synchronisation and deadlocks. This assessment contributes to Learning Outcomes b and c. Value: 30% (Report 20%; Presentation 10%) Due Date: Report Submission via Moodle (Week 11 Sunday 23:55); Presentation (Week 12) Submission: Upload the completed report via Moodle. Task Details: The report will require analysis of an operating system scenario and a report on the systems and logical issues involved, as well as options for resolving the problem and subsequent implications.

Referencing: Please remember that all sources used in assessment tasks must be suitably referenced. Harvard referencing is the required method. A Referencing Guide, “Harvard Referencing”, and a Referencing Tutorial can be found on the right-hand menu strip in Moodle on all subject pages. Assessment Topic: Analysis of an Operating System scenario, Computer Organisation and Architecture Report Assignment Details: 1- Given the following arrival times and CPU cycle times. Job Arrival Time CPU cycles required A 0 3 B 3 8 C 4 3 D 7 14 E 12 2 a) Draw a timeline (Gantt-Chart) for each of the following scheduling algorithms. b) What is the Waiting Time and Turnaround Time of each process for each of the scheduling algorithms?

(Details of the calculation is essential). i) ii) iii) iv) v) First-Come-First-Served (FCFS) Round Robin (RR) (use time quantum of 3) Highest Response Ratio Next (HRRN) Shortest Remaining Time (SRT) Shortest Process Next (SPN) Questions extracted from: Stallings, W. 2017. Operating Systems: internals and design principles. 9th ed. Pearson Education Limited. ICT201 Tutorial 09 Compiled by: Ali Noori 5th May 2021 2- Using either internet resources or books, understand the concept of Memory Management and Virtual Memory. Define those terms (Memory Management and Virtual Memory) in your own words. You must provide references and cite the sources that you consulted for this task. (Harvard referencing is the required method.) 3- Consider the directed resource graph shown below and answer the following questions: a. Is this system deadlocked? b. Which, if any, processes are blocked? c. What is the resulting graph after reduction? R1 R2 R3 P1 P2 P3 R4 Assessment 2 Marking Rubrics – Report: Criteria Unsatisfactory Satisfactory Content Fail (0 – 49%) Depth of Content The explanation is sufficiently inaccurate, incomplete, or confusing that the reader gains little information from the report.

It appears that little attempt has been made to help the reader understand the material. Some difficulty in reading, structure lacking in some parts Accuracy of Content Does not directly answer question Directly answers most of the question Pass (50 – 64%) Effective Credit (65 – 74%) Excellent Exceptional 20 % Distinction (75 – 84%) High Distinction (85 – 100%) Well written, structure not totally clear Well written and structured. Directly answers the question Directly answers the question giving additional insights An accurate and complete explanation of key concepts and theories is made, drawing on relevant literature. Enough detail is presented to allow the reader to understand the content and make judgments about it. In addition, applications of theory are included to illuminate issues. Readers gain insights.

Information (names, facts, etc.) included in the report is consistently accurate. 6 6 Questions extracted from: Stallings, W. 2017. Operating Systems: internals and design principles. 9th ed. Pearson Education Limited. ICT201 Tutorial 09 Compiled by: Ali Noori 5th May 2021 Provides excellent level of support for project’s objectives taken. Analysis based on some argument The project’s objectives are presented. The motivation for pursuing the project and its relevance are addressed. The discussion is reasonably clear but not compelling. Analysis based on sound argument Adequate knowledge of subject matter demonstrated. Sound knowledge of subject matter demonstrated. High level of knowledge of subject matter demonstrated. Clarity of Purpose No support for the project’s objectives taken in the answer.

Provides some support for the project’s objectives taken. Depth of Analysis No analysis presented Use of Language: Word Choice, Grammar, and Sentence Structure Very little knowledge of subject matter demonstrated. Analysis based on an extensive argument The project’s objectives are clearly stated. The motivation for pursuing the project and its relevance are clearly and persuasively established by relating the project to current engineering problems. Results are carefully and objectively analysed. Interpretations are made using appropriate equations, models, or theories. High level of knowledge of subject matter and synthesis with theory demonstrated 6 6 6 Questions extracted from: Stallings, W. 2017. Operating Systems: internals and design principles. 9th ed. Pearson Education Limited. ICT201 Tutorial 09 Compiled by: Ali Noori 5th May 2021.

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