Estudyanteng Hectic

Bubble sort, Selection Sort and Insertion Sort Slides

2012-02-20T18:21:00.000-08:00

Bubble Sort:

http://projectarchive.comuf.com/upload/371.pptx

Selection Sort:

http://projectarchive.comuf.com/upload/372.pptx

Insertion Sort:

http://projectarchive.comuf.com/upload/373.pptx

HCSD Data Structures Case Study 6

2012-02-12T20:32:00.001-08:00

SORTING

Research an application or scenario that the following sorting algorithms can be applied (include a description and an image):

Bubble Sort
Selection Sort
Insertion Sort
Shell Sort
Bucket Sort
Merge Sort
Quicksort

Post your answers in your blog. To be submitted today (February 14 ,2012).

HCSD Data Structures Blog URL

2012-01-30T17:45:00.000-08:00

Post as comment your blog URL here

Ecommerce Case 5 and 6

2012-01-27T20:32:00.000-08:00

Download Ecommerce case 5 and 6 here:

just click the image

E-commerce Case Study 3 and 4

2012-01-17T00:17:00.000-08:00

Here is the link for 4shared page for our ecommerce case study 3 and 4. Just click the preview image..

HCSD Data Structure Case Study 5

2012-01-16T17:46:00.000-08:00

Give at least three scenarios in the real world wherein HASH COLLISION can happen. Include an image.

Give at least three specific software/program/application wherein HASHING and HASH COLLISION might occur. Include the name of the software/program/application, description and a screenshot.

HCSD Data Structure Case Study 4

2012-01-16T17:39:00.000-08:00

We already discuss hash functions..

But what will happen if it will result to a collision of hash keys?

Answer the following questions:

1. What is hash collision?
2. What really happens during a hash collision? Include an image
3. What are the ways and methods to resolve hash collision? Explain Each

Instructions:

Post your answer in your blog.

Brokenshire SAD documents outline

2012-01-09T21:03:00.000-08:00

Brokenshire SAD documents outline

Download the SAD Project outline here:

http://projectarchive.comuf.com/upload/363.doc

Download the Frontpage template here:

http://projectarchive.comuf.com/upload/364.doc

HCSD Data Structure Hash Table

2012-01-09T17:59:00.000-08:00

HCSD Data Structure Hash Table

Download the hash table lecture (presentation) here:

http://projectarchive.comuf.com/upload/362.pptx

HCSD Data Structure Case Studies

2011-12-28T22:16:00.000-08:00

Instructions:

Read each case studies and answer the questions given.
Post your answers in your blog
There are a total of three (3) case studies
I will be checking your answers before January 5, 2011

Case Study 1

THE WICKED WORM THAT WASN'T
by Steven Musil

Millions of Windows users braced themselves for the much-feared Conficker worm, worried that the exploit would wreak havoc on their systems on April 1.

Conficker was expected to shut down security services, block computers from connecting to security Web sites, and download a Trojan. It was also expected to reach out to other infected computers via peer-to-peer networking and include a list of 50,000 different domains, of which 500 would be contacted by the infected computer on April 1 to receive updated copies or other malware or instructions.

Then nothing happened. Was it all an elaborate April Fools' joke?

The Conficker worm may have failed to cause the digital pandemonium that some may have feared, but that doesn't mean we are in the clear. Just because the worm failed to create much of a stir on the day it was set to activate doesn't mean it won't wake up and act later.

Today, as on any day, PC users should make sure their systems are patched and running the latest security software. People should patch their systems to close the hole in Windows that Conficker exploits and should update their antivirus software. The major antivirus vendors all have free Conficker removal tools.

The worm also can spread via network shares and removable storage devices like USB thumb drives. So people are advised to use strong passwords when sharing files on a network and to download a patch Microsoft released to address the Autorun feature problem in Windows that makes using removable storage risky.

So, in the end, was the hype a good thing or a bad thing?

Instruction:

Write your comments and reflection in concern with the above article in no less than 200 words.

Case Study 2
CASE STUDY NO.2
Romanian hacker charged with breaching NASA computers
Agence France-Presse
Last updated 07:05am (Mla time) 06/27/2007
BUCHAREST -- A young Romanian has been charged with hacking into NASA computers and causing more than 1.5 million dollars (1.1 million euros) of damage for the US space agency, prosecutors said Tuesday.

Victor Faur, 26, from the western town of Arad, was also accused of breaking into the computers of the US navy and the Department of Energy between November 2005 and September 2006, a statement said.

Romanian police alerted NASA in July last year that its servers had been breached by unknown people based in Romania.

An ensuing probe, launched jointly by Romanian police and the FBI, led to Faur.

NASA had to rebuild its systems and scientists and engineers had to manually communicate with spacecraft, resulting in huge losses for NASA.

Faur, meanwhile, said in television interviews that his action was aimed at "proving that several computers are vulnerable to attack," and underlined that he had not tried to make any "material gains."

"I had neither modified nor erased the files, nor destroyed the communications systems," said Faur, who was formally put under investigation in December and has been barred from leaving the country.

An earlier indictment by the US Attorney's Office charges Faur with leading a hacking group called the "WhiteHat Team," which broke into the systems because of their reputation of being among the most secure in the world.

Instruction:
1. Make your comment/s on the news article if you agree or not with what happened to the hacker in no less than 300 words.

Case Study 3

Read the fictitious KILLER ROBOT case found at the web site for the Online Ethics Center for Engineering and Science at www.onlineethics.com (look under Computer Science and Internet cases) or go directly to this link http://www.onlineethics.org/Resources/19049/killerrobot.aspx.

The case begins with the indictment of a programmer for manslaughter for writing faulty codes that resulted in the death of a robot operator. Slowly, over the course of many articles, you are introduced to several factors within the corporation that contributed to the accident. Read this case and answer the following questions.

a. Responsibility for an accident is rarely clearly defined and able to be traced to one or two individuals or causes. In this fictitious case, it is clear that a larger number of people share responsibility for the accident. Identify all the people who you think were at least partially responsible for the death of Bart Matthews, and why you think so?

b. Imagine that you are the leader of a task force assigned to correct the problems uncovered by this accident. Develop your “top-ten” list of actions that need to be taken to avoid future problems. What process would you use to identify the most critical actions?

c. If you were in Ms. Yardley’s position, what would you have done when Rays Jonhson told you to fake the test result? How would you justify your decision?

Instructions:
Your answers should be no less than 100 words each.

HCSD IT314 DBMS Assignment 1: Designing an ERD

2011-06-19T00:00:00.000-07:00

Consider the following set of requirements for a University database. Design an ER diagram for this application:

The university keeps track of each student's name, student number, social security number, current address and phone number, permanent address and phone number, birthdate, sex, class (freshman, graduate), major department, minor department (if any), degree program (B.A., B.S., ... Ph.D.). Some user applications need to refer to the city, state, and zip code of the student's permanent address and to the student's last name. Both social security number and student number are unique for each student. All students will have at least a major department.
Each department is described by a name, department code, office number, office phone, and college. Both the name and code have unique values for each department.
Each course has a course name, description, course number, number of credits, level and offering department. The course number is unique for each course.
Each section has an instructor, semester, year, course, and section number. The section number distinguishes sections of the same course that are taught during the same semester/year; its value is an integer (1, 2, 3, ... up to the number of sections taught during each semester).
A grade report must be generated for each student that lists the section, letter grade, and numeric grade (0,1,2,3, or 4) for each student and calculates his or her average GPA.

Instructions:

Printed, Short
Use Chen's Notation
To be submitted next Saturday June 25, 2011

CS323: Case Study 4

2011-05-21T22:03:00.000-07:00

Using the process state diagram, explain why there is no transition:
• From the READY to WAITING.
• From the WAITING to RUNNING.

Instructions:
• Your answers should reach in not less than 300 words.
• Post your answers to your electronic journal.
• Date of submission: May 22, 2011 12:00 midnight
• Once I found out that you have a duplicated answer from a classmate, automatic 50 grade.

CS323: Case Study 3

2011-05-14T22:00:00.000-07:00

Load the following jobs into memory using fixed partition following a certain memory allocation method (a. best-fit, b. first-fit, c. worst-fit).

Memory Block	Size
Block 1	50K
Block 2	200K
Block 3	70K
Block 4	115K
Block 5	15K

a. Job1 (100k) f. Job6 (6k)

turnaround: 3 turnaround: 1

b. Job2 (10k) g. Job7 (25k)

turnaround: 1 turnaround: 1

c. Job3 (35k) h. Job8 (55k)

turnaround: 2 turnaround: 2

d. Job4 (15k) i. Job9 (88k)

turnaround: 1 turnaround: 3

e. Job5 (23k) j. Job10 (100k)

turnaround: 2 turnaround: 3

*turnaround – how long it will stay in the memory.

Instructions:

Post your answers to your electronic journal.

Date of submission: Today (May 15, 2011) 12:00 midnight.

Once I found out that you have a duplicated answer from a classmate, automatic 50 grade.

IT111: Intro to IT Case Study

2011-05-07T22:47:00.000-07:00

Case Study 2

Select two of the following professionals:

An insurance adjuster
A delivery person for a courier service
A newspaper reporter
A doctor (general practitioner)
Manager in a supermarket

Put forward a theory about how that person might use a hand held computer in their work

Instructions:

Your answers should reach in not less than 300 words.

Post your answers to your electronic journal.

Date of submission: Today (May 8, 2011)

Once I found out that you have a duplicated answer from a classmate, automatic 50 grade.

CS323: Case Study 2

2011-05-07T22:45:00.000-07:00

Computer Architecture

Case Study 2

In a multiprogramming and time-sharing environment, several users share the system simultaneously. This situation can result in various security problems. Name at least two of these problems. Can we ensure the same degree of security in a time-share machine as we have in a dedicated machine? Explain your answer

Instructions:

· Your answers should reach in not less than 500 words.

· Post your answers to your electronic journal.

· Date of submission: Today (May 8, 2011)

· Once I found out that you have a duplicated answer from a classmate, automatic 50 grade.

CS323: Case Study 1

2011-04-16T23:47:00.000-07:00

Computer Architecture Case Study 1

Explain why we need to study Computer Architecture? What is its significance with your field as an IT or CS student? Differentiate Computer Architecture and Computer Organization?

Instructions:

Your answers should not be less than 250 words.
Due: April 17, 2011 4pm
DONT COPY AND PASTE!

CS323: Blogs

2011-04-16T22:30:00.000-07:00

CS323 Students:

Post your Name, blog url as a comment.

IT16 Case Study 12: The KILLER ROBOT

2011-03-06T19:05:00.000-08:00

Read the fictitious KILLER ROBOT case found at the web site for the Online Ethics Center for Engineering and Science at www.onlineethics.com (look under Computer Science and Internet cases) or go directly to this link http://www.onlineethics.org/Resources/19049/killerrobot.aspx .

The case begins with the indictment of a programmer for manslaughter for writing faulty codes that resulted in the death of a robot operator. Slowly, over the course of many articles, you are introduced to several factors within the corporation that contributed to the accident. Read this case and answer the following questions.

a. Responsibility for an accident is rarely clearly defined and able to be traced to one or two individuals or causes. In this fictitious case, it is clear that a larger number of people share responsibility for the accident. Identify all the people who you think were at least partially responsible for the death of Bart Matthews, and why you think so?

b. Imagine that you are the leader of a task force assigned to correct the problems uncovered by this accident. Develop your “top-ten” list of actions that need to be taken to avoid future problems. What process would you use to identify the most critical actions?

c. If you were in Ms. Yardley’s position, what would you have done when Rays Jonhson told you to fake the test result? How would you justify your decision?

Instructions:

Your answers should be no less than 200 words each.
Due: March 14, 2011

Project Management Documentation Outline (FINAL)

2011-02-28T00:29:00.000-08:00

Download the file here.

or copy this link:

http://projectarchive.comuf.com/upload/331.doc

IT16 Prefinal Requirement

2011-02-15T23:13:00.000-08:00

IT16 Prefinal Exam 100 pts

By pair

· Interview a certain IT professional. The following are some guide questions:

Personal Information?
What is his/her work in the field of IT?
Educational Background?
How much income he earns every month?
Why he/she chose an IT-related career?
What are his/her motivations in continuing his/her work?
As an IT professional, what are his/her contributions to his field of work? to the society? to the IT industry?
What are his/her plans in the future?
What are his/her advices for future IT Professional?

· Create a short biography of the IT professional based on the interview.

Instructions:

Due: March 2, 2011.
Format: Arial, 11, double spacing.
Brown folder white slider, Short sub 20 white paper.
Include pictures and other evidences of your interview.

IT16 Case Study 10: Being an IT Professional

2011-02-10T18:44:00.000-08:00

In Italy, raccomandazione is the custom of seeking and receiving special treatment from people in power or from people who are close to someone in power. The ability to solicit favors from someone in a higher place, be it through the chief of police or the chief of the police’s chauffeur, has been part of the Italian art of getting things done for over 2000 years. In April 2001, Italy‘s highest court of appeal ruled that influence peddling is not a crime. The judges did rule, however, that it is a crime to overstate one’s power in order to exert influence.
Your firm is opening a new sales office in Rome and will be using a local employment agency to identify and screen candidates who will then undergo employment testing and interviews by members of your organization. What guidelines would you provide to the agency in regard to the practice of raccomandazione to ensure that the employment agency operates ethically and effectively?

Instructions:

Due: February 16, 2011
You can show it in a bulleted form or in an essay form.

IT320 Project Management Documentation Template

2011-01-23T20:36:00.000-08:00

Click here to download the file.

If it doesn't work try this link:

http://projectarchive.comuf.com/upload/325.doc

Note: Unfinished document. Items will be added next week. This it for now to help you prepare.

IT16 Case Study 9: Security technologies

2011-01-11T23:58:00.000-08:00

Using the additional readings, or a suitable online search engine, research one of the following security technologies, focusing on a particular application or example. Discuss some of the problems of implementing this technology and create a SWOT (strengths, weaknesses, opportunities, threats) analysis.

Biometrics
Encryption
Access Control Software
Honeypot

Instruction:

Due: January 28, 2011

IT16 Case Study 8: Technology Abuse

2011-01-11T23:56:00.000-08:00

Watch at least two of the following movies:

Die Hard 4
Wall e
9
Surrogates
The fifth element
The Island
Babylon AD
I, Robot
Equilibrium
Minority Report

Make a comprehensive reaction paper for the two movies in no less than 300 words each.
Make a comparative analysis of the two movies you chosen.
Short bond paper, choose your own format.
Due: January 24, 2011

IT16 Case Study 7: Computer Lab Security Measures

2011-01-11T23:49:00.000-08:00

As the use and the advancement of computer networks especially the Internet has increased dramatically during the past few years, I.T. security is fast becoming the top priority for most of the companies implementing and using I.T. as part of their business process.

The National Cyber Security Alliance (NCSA) provided some guides to both the home and corporate users to help prevent their computer systems from being compromised. Here are the top ten security tips that you should always put in mind:

1. Use anti-virus software and keep it up to date.

Make sure you have anti-virus software on your computer. Anti-virus software is designed to protect you and your computer against known viruses. But with new viruses emerging daily, anti-virus programs need regular updates. The more often you keep it updated, the better.

2. Don’t open emails or attachments from unknown sources.

A simple rule of thumb is that if you don't know the person who is sending you an email, be very careful about opening the email and any file attached to it. Should you receive a suspicious email, the best thing to do is to delete the entire message, including any attachment. Remember that

even friends and family may accidentally send you a virus or the e-mail may have been sent from their machines without their knowledge.

3. Protect your computer from Internet intruders by using firewalls and internet security appliance.

Equip your computer with a firewall and with internet security appliance. They work by filtering out unauthorized or potentially dangerous types of data from the Internet, while still allowing other valid data/request to reach your computer.

4. Regularly download security updates and patches for operating systems and other software.

Most major software companies today release updates and patches to close newly discovered vulnerabilities in their software. You need to be sure you download and install the patches and getting it from the correct patch update site.

5. Use hard-to-guess passwords.

Passwords will only keep outsiders out if they are difficult to guess. Don’t share your password, and don’t use the same password in more than one place. If someone should happen to guess one of your passwords, you don’t want them to be able to use it in other places.

6. Back-up your computer data on disks or CDs regularly.

Back up small amounts of data on floppy disks and larger amounts on CDs. If you have access to a network, save copies of your data on another computer in the network.

7. Don’t share access to your computers with strangers.

Unless you really need this ability, make sure you turn off file-sharing. Check your operating system and your other program help files to learn how to disable file sharing. Don’t share access to your computer with strangers.

8. Disconnect from the Internet when not in use.

Remember that the Digital Highway is a two-way road. You send and receive information on it. Disconnecting your computer from the Internet when you’re not online lessens the chance that someone will be able to access your computer. Someone could infect your computer or use it to

harm someone else on the Internet.

9. Check your security on a regular basis.

You should evaluate your computer security and policies at least twice a year. Look at the settings on applications that you have on your computer. Check what settings you have and make sure you have the security level appropriate for you.

10. Make sure your family members and/or your employees know what to do if your computer becomes infected.

It’s important that everyone who uses a computer be aware of proper security practices. People should know how to update virus protection software, how to download security patches from software vendors and how to create a proper password.

Instruction:

In your own little way, suggest 10 more ways to help prevent the computer systems from being compromised. Also suggest ways to HELP our laboratory from being compromised.
Due: January 17, 2011