Essay about Security Wi

Essay about Security Wi Essay about Security: Wi-fi and Wireless Access Point Thesis What is my project (statistics.gov.uk/cci/nugget.asp?id=8) The UK has a very intensive Rail network system which spreads out across the whole country. It is used by millions of users. There is currently 21000 miles of track lied out across the network. According to statistics.gov.uk in the year 2010 1.32 billion people used the trains. This is statistic show the magnitude off the rail and that there is hugh potential in using is client base. According to national statistics 30.1 million adults in the UK where using internet every day, this is more then 60 percent of the adult population. In line with the amount of users now online they has also been a rise in users watching TV and Listening to the radio over the internet which in 2010 reached 17.4 million a day. Social networking has also risen in popularity with more then 65 percent of those online users using different types of social networking websites, chat rooms and blogs. What this shows is that we are living in the digital age were 70 percent of us need to be able to access information from the web. Now we now that there was 1.2 billion user of the rail network and we also now that more then half of the UK adult population use internet daily. We therefore argue the point that more then half of the rail network users use internet which means more then 600 million users of the rail network are internet users. Another statistic tells us that a recent study has shown that more then 80 percent of the adult population carry a mobile phone and 40 percent of those are wifi enabled. While on a trains user mostly access the internet via their mobile network provider, and this service is not great while on a fast moving train. User encounter loss of signal poor reception and rarely seem to have a good connection at all. The aim of my project is to provide a constant internet signal on a moving train utilising wireless connectivity. This will aloow users to connect to the internet while on the train using any wireless enabled devices such as Tablet Pc, mobile phone, laptop exe.... As wifi signal from one router is limited I will be intending to use many routers which will run along the train track. Power to them will be provided by the power terminals already existing along train track and phone-line. This will provide train customers to access internet constantly through out their journey with no loss of signal and speed. What will I use: Types of technology available for accessing the internet (http://en.wikipedia.org/wiki/Broadband_Internet_access) accessed on 16-02-2011 Mobile Broadband (explainthatstuff.com/mobilebroadband.html) There are two ways in which you can connect to a mobile broadband, if you have a smart phone which has HSPDA you can access fast mobile broadband or you can purchase a USB Dongle from most mobile network providers. Most major cities in the UK are covered by the 3G network Advantage The advantage of using mobile Broadband is that it has a larger coverage then wireless network. Where ever you can get a reasonable mobile connection you are more than likely to get a good mobile broadband connection. Disadvantage Mobile broadband has its downsides, as you are using the mobile phone provider’s network the quality of the signal you receive can vary from a good signal to a very poor signal, thus loss of connection occurs. When using mobile broadband on a train you can expect to lose connection very often as trains go under tunnels and bridges, this makes for a bad user experience. Satellite Broadband (http://computer.howstuffworks.com/question606.htm) (pcworld.com/article/17617/how_it_works_satellite_internet_access.html) High speed internet that uses a satellite dish on the receiving side similar to what satellite TV uses. The way in which internet is accessed is very similar to how Satellite television is received, a BIRD orbiting the earth beams down data to your dish. The way it works is you

Breaking Down The CompTIA Security+

Breaking Down The CompTIA Security+ Over the last decade or so, IT security has exploded as a field, both in terms of the complexity and breadth of the subject matter, and the opportunities available to security-focused IT professionals. Security has become an inherent part of everything in IT, from network management to web, application and database development. But even with the increased focus on security, there is still much work to be done in the field, and opportunities for security-minded IT professionals aren’t likely to decrease any time soon. The Importance of Certifications For those who are already in the IT security field, or are looking to enhance their career, there is a range of certifications and training options available for those who want to learn about IT security and demonstrate that knowledge to current and potential employers. However, a lot of the more advanced IT security certifications require a level of knowledge, experience, and commitment that might be outside of the range of many newer IT professionals. A good certification to demonstrate basic security knowledge is the CompTIA Security certification. Unlike other certifications, such as the CISSP  or the CISM, the Security doesn’t have any mandatory experience or prerequisites, though CompTIA does recommend that candidates have at least two years of experience with networking in general  and security in particular. CompTIA also suggests that Security candidates obtain the CompTIA Network certification, but they don’t require it. Even though the Security is more of an entry-level certification than others, it’s still a valuable certification in its own right. In fact, the Security is a mandated certification for the US Department of Defense  and is accredited by both the American National Standard Institute (ANSI) and the International Organization for Standardization (ISO). Another benefit of the Security is that it’s vendor-neutral, instead choosing to focus on security topics and technologies in general, without limiting its focus to any one vendor and their approach. Topics Covered by the Security Examination The Security is basically a generalist certification – meaning that it evaluates a candidate’s knowledge across a range of knowledge domains, as opposed to focusing on any one area of IT. So, instead of maintaining a focus on application security only, say, the questions on the Security will cover a broader range of topics, aligned according to the six primary knowledge domain defined by CompTIA (the percentages next to each indicate the representation of that domain on the exam): Network Security (21%)Compliance and operational security (18%)Threats and vulnerabilities (21%)Application, Data, and Host Security (16%)Access control and identity management (13%)Cryptography (11%) The exam provides questions from all of the domains above, although it is somewhat weighted to give more emphasis on some areas. For example, you can expect more questions on network security as opposed to cryptography, for example. That said, you shouldn’t necessarily focus your studying on any one area, especially if it leads you to exclude any of the others. A good, broad knowledge of all the domains listed above remains the best way to be prepared for the test. The Exam There is only one exam required to earn the Security certification. That exam (exam SY0-301) is comprised of 100 questions and is provided over a 90-minute period. The grading scale is from 100 to 900, with a passing score of 750, or roughly 83% (although that’s just an estimate  because the scale changes somewhat over time). Next Steps In addition to the Security, CompTIA offers a more advanced certification, the CompTIA Advanced Security Practitioner (CASP), providing a progressive certification path for those who want to continue their security career and studies. Like the Security, the CASP covers security knowledge across a number of knowledge domains, but the depth and complexity of the questions asked on the CASP exam exceed those of the Security.​ CompTIA also offers numerous certifications in other areas of IT as well, including networking, project management and systems administration. And, if security is your chosen field, you might consider other certifications such as the CISSP, CEH, or a vendor-based certification such as the Cisco CCNA Security  or Check Point Certified Security Administrator (CCSA), to extend and deepen your knowledge of security.