Unit 9: Distributing Computing & Networking Kaplan University 1

 Unit 9: Distributing Computing & Networking ◦ Last Seminar for class! ◦ Discussion Question due by May 22 ◦ Unit 9 Paper due by Tuesday, May 22  Unit 10: Final Project ◦ No Seminar in Unit 10 ◦ No Discussion Questions in Unit 10 ◦ Complete your Final Project ◦ Due Tuesday, May 29 at 11:59 pm ET Kaplan University2

 Readings  Discussion Question  Review Unit 9 Assignment  Lecture on Definitions  Final Project due on May 29  Final Thoughts on the class Kaplan University3

 Textbook Reading ◦ Chapter 16 – Distributed Processing, Client/Server, and Clusters ◦ Chapter 17 – Network  Web Reading  1 Discussion Question  3 page essay discussing proposed network for scenario company (due Tuesday) Kaplan University4

We often hear the term: switched and routed networks or switching and routing. Explain the concepts and provide examples of how they work in real life. Kaplan University5

 Problem Scenario: ◦ Company “LTET” (Late to Embrace Technology) has grown substantially in the last few years. ◦ The company manufactures, distributes, and sells acoustic products. Its manufacturing plants are in China. Its assembly and distribution plants in addition to HQ and sales offices are in the US. ◦ Their current computing environment consists of a few computers scattered here and are not networked. ◦ They rely on paper and do everything manually, but now they are ready to embrace 21st century technologies. Kaplan University6

 Write a 3 page paper on the following: ◦ Propose a network and a computing environment. ◦ Your plan should identify a client/server class and a cluster implementation. ◦ Money, time, and resources should NOT be a consideration in your creative mind. ◦ Be sure to give them an efficient and secure network based on what you learned in this and previous units. ◦ Be sure to defend your recommendations. Kaplan University7

 Your paper should include at least 3 pages of content (including required content, intro & conclusion)  Note that your paper will be longer than 3 pages as it will have a title page and a reference page in addition to the actual content pages required.  Be to sure include an introduction and conclusion (5 pts each)  Use APA format Kaplan University8

 15 pts – Explain Client/Server Computing  10 pts – Explain the benefits of clusters  10 pts – Recommend a solution for implementation  15 pts – Summarize components of networking  Total 50 pts Kaplan University9

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 A client/server environment includes: ◦ Clients – typically single user PCs or workstations with operating system and easy to use GUI interface ◦ Servers – provides shared services to clients (application server, database server, storage) ◦ Network – how it is all connected to each other Kaplan University11

 1 Tier ◦ Client & Server are same machine  2 Tier ◦ Client & Server are separate machines  3-Tier ◦ Client (end-user computer) ◦ Middle-tier (application server) ◦ Back-end server (database server) Kaplan University12

 Set of standard programming interfaces and protocols that site between the application and the communications software  Has both server and client components Kaplan University13

 A group of interconnected whole computers working together as a unified computing resource that can create the illusion of being one machine  What are the benefits of this?  Can you name an example of a company that uses a cluster for their infrastructure? Kaplan University14

 Google Kaplan University15  Facebook

 Benefits ◦ Absolute Scalability ◦ Incremental Scalability ◦ High Availability ◦ Superior price/performance Kaplan University16

 Used for communication between entities in different systems ◦ Entity – anything capable of sending or receiving (terminal, DBMS, user applications) ◦ System – physically distinct object that contains one or more entities (computers, terminals, remote sensors) ◦ Protocol is the language between the two Kaplan University17

 7 layer model that identifies protocols for communicating at different layers.  Example Protocols ◦ Transmission Control Protocol / Internet Protocol (TCP/IP) ◦ IP – provides routing functionality between multiple networks ◦ TCP – ensures data arrives at the destination application & the data arrives in the same order it was sent. Kaplan University18

 Simple Mail Transfer Protocol (SMTP) ◦ Provides mechanism for transferring messages among separate hosts  File Transfer Protocol (FTP) ◦ Used to send files from one system to another under user command  TELNET ◦ Provides remote logon capability, which enables a user at a terminal or PC to logon to a remote computer and function as if directly connected Kaplan University19

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 Due Tuesday, May 29 at 11:59 pm ET  No late assignments accepted  Final Project is worth 100 points  Write a 5-10 page essay explaining how a mainstream modern (Linux or Windows) Operating System is designed to integrate all components of the operating system.  At least 3 outside references  Include topics on the next page  Be sure to include a Table of Contents  Use headings to separate the sections Kaplan University21

 The following list of topics is a starting point for your essay. You may include other topics if you feel they are important. Each topic listed below is worth 20 pts! ◦ Processes and threads ◦ Memory management ◦ Scheduling (Including deadlock prevention) ◦ File Management ◦ Input and Output devices ◦ Security issues (Discuss current malware threats & prevention techniques) ◦ Data protection (RAID & Clusters) Kaplan University22

 15 pts – Explain the concept of Processes/Threads & their management related to OS  15 pts – Explained concept of deadlock and related topics (Avoidance, Prevention, & Detection)  10 pts – Explained Input / Output as related to OS  10 pts – Explain concept of scheduling as related to OS  10 pts – Explained file system and management of OS  15 pts – Explained security threats to computer systems & addressed viruses, bots, attacks, worms, as related to OS  10 pts – Explained security techniques & addresses defenses against the threats related to OS  15 pts – Explained Data Protection techniques (Backup, RAID) as related to OS Kaplan University23

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 Name two new things that you have learned in this class. Kaplan University25

 Name two things that are still confusing to you. Kaplan University26

 List 2 things that you would add to the course. Kaplan University27

 What is the take-away lesson that you have learned from this class? Kaplan University28

 Pam Van Hook Kaplan University29