Network Security Essay Example | Topics and Well Written Essays - 1250 words - 2

Network Security - Essay Example But with this ease of information access comes the issue of security. With the increase of information flow, there has been an increase in the number of attacks on information by hackers. Attacks such as Denial of Service (DoS) Attacks, Spoofs, Sniffing, etc. have increased with the increase in the availability of hacking tools which are free of cost. Valuable information is lost in the process. For example, if a customer buys a product of a particular organization through their web-site and a hacker presents himself as the organization and receives the money from the customer, valuable information such as the ID of the customer, his credit card numbers, his passwords are all stolen by the hacker. Therefore such information has to be transferred securely over the Internet. Encryption is the most common way of securing valuable information while transmitting over the Internet (Rahman, 2003). Networks are secured in a different manner. They are secured using tools called "Firewalls". W henever transactions or information between a customer and an organization are being carried out, a particular pattern is followed. Firewalls recognize and allow only these transactions or processes to be carried out and block out all the unrecognized patterns. By implementing Firewalls, most of the attacks from the hackers can be kept out. Securing a network just does not happen. There are many issues to be considered when making policies for network security. The three main issues back in the earlier days were Confidentiality, Integrity and Availability. Due to the advances in the technologies, these issues have been mostly resolved. But in the present day Networks, other issues have appeared. These issues will eventually result in the breaching of confidentiality, integrity and availability thereby defeating the cause of coming up with Network Security policies. We can ask the following questions to resolve the recent issues related to Network Security: Should Identity Manager be put back to the User Identity Control from the top down approach has traditionally been imposed by all Enterprises and Governments. But this has resulted in resilience from the users. Users have always found it difficult to cope up with the time constraints resulting from the above mentioned approach. This approach looks increasingly antiquated for the present day user needs. Microsoft's Kim Cameron once noted that: "A system that does not put users in control will - immediately or over time - be rejected" (Dean, 2006). This is true because users expect real fast response and do not like to waste their time in waiting for a response from the requested network or system. Identity Control being at the Server side is the key to ensuring trusted relationship for billions of business transactions all over the world. Identity Control being at the server side makes it possible for the replying Network to ensure that the keys constructed are secure. Since the control will be present with the server, no user will have chance of even attempting to break the key and steal the information being transferred. At the macro level, the advantages that accrue in the form of innumerable applications and services,

Electric Cars Research Paper Example | Topics and Well Written Essays - 1250 words

Electric Cars - Research Paper Example In 2008, during the presidential campaign, President Obama promised Americans that he would oversee the implementation of a project of over one million green vehicles grazing our roads, this however has not occurred for various reasons. Recently the department of Energy confessed that this was impossible. They projected that only two hundred and fifty thousand green vehicles could be in the roads by 2015. This is only one percent of all automobiles in the United States. The complete takeover of electric cars over gasoline powered cars has failed because to kick off because the consumers of cars have doubts about electric cars. In this research paper I will answer the question Are electric cars superior and much better than fuel powered cars? Unsurprisingly recently I was made to think by an uncle who wanted to purchase a new automobile and he asked me if I would give him an advice about the latest models of cars. We ended up discussing the prospects of electric cars. The electric cars are more efficient in power consumption than the fuel driven automobiles. The standard electric model car uses 0.20 to 0.40 kilowatt per hour per mile. However the average gasoline powered automobile uses about one gallon of fuel in every 25 miles. This is approximately 1.58 kilowatt per hour per mile. The difference clearly shows that the electric cars are way more efficient than the fuel dependent counterparts. Electric cars are eco-friendly. Electric automobiles are a powered using powerful rechargable battery which is categorized as clean sources of energy. The batteries are recharged using either electricity produced from natural sources such as hydropower, wind power and solar power. This ensures that the environment remains clean and free of harmful substances that would cause air, noise and water pollution. Fuel powered cars are completely eco unfriendly. They use of fuels such as gasoline and other petroleum have proved to be quite destructive. These models