Unit 3 Assignment 1 – Choosing Port Scanning Software Essay Example

1.The act of systematically scanning a computer’s ports. Since a port is a place where information goes into and out of a computer, port scanning identifies open doors to a computer. Port scanning has legitimate uses in managing networks, but port scanning also can be malicious in nature if someone is looking for a weakened access point to break into your computer.(1) 2.To determine services that a computer is running and shut down services not being used to increase the security of the computer being scanned.(2) 3.I would prefer open source port scanning software. Here are the reasons why: Lower cost: Since development is done by a community of volunteers (many of whom are paid by other organizations), the costs don’t need to cover a company’s development expenses. Customization: Open source software is designed for developers to adapt and extend. Whereas, users usually cannot make non-cosmetic changes to a proprietary system. Nimble: Open source projects adopt new trends faster than proprietary systems.

Openness: Open Source systems are usually designed with integration in mind; whereas commercial systems have business motivations to lock organizations into a closed system. Fast bug and security fixes: Open source software usually has many people combing its source code, who rapidly fix problems as they are discovered.(3) 4.I would recommend him using Nmap. Nmap is the most popular port scanner. Nmap (“Network Mapper”) is an open source utility for network exploration or security auditing. It was designed to rapidly scan large networks, although it works fine against single hosts. Nmap uses raw IP packets in novel ways to determine what hosts are available on the network, what services (ports) they are offering, what operating system (and OS version) they are running, what type of packet filters/firewalls are in use, and dozens of other characteristics. Nmap runs on most types of computers, and both console and graphical versions are available.

Nmap is free software; available with full source code under the terms of the GNU GPL.3 Nmap is an excellent security tool because it allows you to determine which services are being offered by a system. Because Nmap is optimized to scan large IP ranges, it can be run against all IP addresses used by an organization, or all cable modem IP addresses provided by an organization. After using Nmap to find machines and identify their services, you can run the Nessus vulnerability scanner against the vulnerable machines. Nmap supports an impressive array of scan types that permit everything from TCP SYN (half open) to Null scan sweeps. Additional options include OS fingerprinting, parallel scan, and decoy scanning, to name a few.(4)

The Scarlatti Tilt Analysis

The Scarlatti Tilt is a 34 words short story written by Richard Brautigan. This story tell us that a woman who lived in San Jose handed an empty revolver to police and told them living with a violinist was very hard. The gaps and silences in the story exhibit plenty of explanations and possible results. However, affected by my cultural and social values, I assumed that the lady shot the man because he would not stop playing the violin.

I consider that the woman is the killer for three seasons. First of all, according to what she told the police, it’s not hard to find out that she has tolerated the noise for a long time and she didn’t want to hear it longer, which gives her motive of killing the violinist. All the anger and dissatisfaction reach the point where she shot him with every bullet in the gun. Then, Her way of talking seems calm and no fear. She thought that her reason to kill the man is acceptable and meaningful, and it seems that she is glad that she won’t have to bear the violin noise anymore. What’s more, as a result of common sense and criminal novels and movies, a revolver reminds me of murder or injury. Not to mention, it’s empty. An empty gun means that it has been used and someone got hurt. Even that who used that gun can’t be sure, the lady becomes the prime suspect.

Besides, other details need to pay attention, for example, the relationship between the woman and the man. There are two variations. The first one is that they live in a same studio apartment, which means that the killed man might be her husband or boyfriend. Considering that a real violinist should have a good income, the man’s situation indicates that he was dreadful violin player. Bad living condition and limited income may cause his wife or girlfriend to have a fight with him and kill him out of anger. Or, they are just neighbors. From the fact that the woman shot him we can tell that they do not have a good relationship. The poor living condition cannot stop the voice of violin across the wall, so she killed the man she hated and got the quiet environment. Besides, the woman might be mentally ill. Her confession to the police is without regretting, not like normal people, and she felt no

guilty at all. Her illness might drive her to kill that man.

In the end of the story, I assume that the police took the woman and asked her about the detail of this murder. The woman would tell the anything to the police.

Quality Assurance And Leadership Development

‘Quality is not an act, it is a habit’, quoted Aristotle. Quality- a seven letter word that decides how good a product is. Everybody wants quality in life. Be it in professional or personal front we all strive for quality until it becomes a habit. What is quality? Why do we need quality and how does it help an organization especially leadership-these questions once answered can help in the better understanding of Quality Assurance(QA) and how it helps and supports good leadership.

What is Quality Assurance?

Quality Assurance by definition is any and all activities—especially activities that cut across departments—that we do to make sure that we do our quality work right (Kemp, 2005, p.355). It helps checks the accuracy of a particular job as well as the system. It focuses on solving problems pertaining to quality. We know that Total Quality Management consists of defining, planning for, controlling, assuring and delivering quality and Assurance therefore plays a major part.

What does Quality Assurance comprise of?

QA includes cross-departmental communication about quality, communication with vendors, redesign of the product or process to prevent error, and a variety of audit processes to make sure that work and management are being done to standards or in accordance with best practices (Kemp, 2005, p.103). With this we understand that QA not only makes sure that we are adhering to the best practices but also suggests various ideas for improvements and also makes sure that those ideas are met.

How does Quality assurance support Leadership?

It is we who define quality- what we want, plan it- how we it- whether the want is being met as per the desired standards. It is people that make up and manage organizations and lead teams with quality. Thus, the need for good leaders with quality grows tremendously as they make substantial differences in organizations and their respective teams. QA ensures that every team has good people with great quality in it which in turn supports leadership. How does it do it? According to Kemp (2005), QA helps define and organize ideas through: Product re-engineering, Process re-engineering, Evaluation of customer satisfaction and customer service information, Communication across departments and Communication with vendors.

 QA helps us to examine the defects in a particular product or a process, through scientific analysis and various audits, providing sufficient data that are objective. This in turn ensures fewer errors and defects. It also helps us find better ways of doing the same work and that the consistency is met. It helps leadership decide whether the product or the process has to be redefined. QA helps identify various quality problems that occur due to lack of communication- be it communication across departments or communication with vendors. This supports leadership in identifying the minimum communication that is required to resolve these problems. It also helps in making sure that the individuals are updated and have sufficient knowledge. By identifying and ensuring the above, QA not only helps individual development, but ensures that customer feedback reaches the leadership. This feedback is then evaluated and used for redefining the product or the process in the organization.

QA when supported and sustained can add real value to the organization (Kemp, 2005, p.126). By identifying the skills that an individual possesses and the skills that are needed, by making sure the process requirements are met, by providing various ideas that can reengineer the process or the product and by calculating the necessary plan of action, QA helps leadership take better decisions as well as deliver excellence and customer satisfaction which is the primary goal of any leadership in management. Thus, we can successfully conclude that QA helps and supports leadership by ensuring that quality becomes a habit and not an act.


Kemp, Sid. 2005. Quality Management Demystified. Retrieved from Google Books