Chapter 7 Questions: 3. Compare and contrast the two types of antennas. - omnidirectional antennas: the antenna transmits in all directions simultaneously. One common omnidirectional antenna is the dipole antenna (nicknamed the “rubber duck” because of its flexibility); omnidirectional antennas transmit in all directions‚ both horizontally and vertically. The signal goes in all directions‚ as well as up and down‚ although there is often a small dead spot with no signal that is a very small area
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Associate Program Material Appendix G Wireless LAN Vulnerabilities Matrix Complete the following matrix by filling in the blank boxes in the table. Security protection Brief description Vulnerabilities Prevention (if any) MAC address filtering Only allows access to a device if its MAC address matches that of a pre-approved list on the router. MAC Spoofing Don’t rely on MAC filtering alone. Open system authentication (SSID beaconing) Disables SSID from being broadcast so wireless
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Cracking WEP/WPA/WPA2/WPS using Fern-Wifi-Cracker NOTE: This tutorial is for educational purposes only. Do not use this to harm or damage other’s computer. Tested only with Backtrack 5 r3. Requirements : • Backtrack 5 r3 LiveCD or ISO - (download here) Update: Ito po yung ginamit kong backtrack • VMware (I used Oracle VM VirtualBox) • Wireless Network Adapter (I used RT73USB Wireless Network Adapter) In this tutorial‚ I already have Backtrack 5r3 installed in VMware/VirtualBox
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Types of WLAN Private/Home WLAN This is the most common area to see a wireless. Home WLANs are meant to be used for small areas‚ usually with up to a 200-foot radius‚ and as such are suitable for homes or small businesses. The private WLAN subscribes to the 802.11 technology standard for wireless networking‚ with the most common being the 802.11b standard‚ often referred to as Wi-Fi. Private WLANS will frequently be based around a single router/access point which will connect to the Internet
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CheckPoint: TJX Companies The data theft that TJX Companies experienced was caused by using the Wired Equivalent Privacy (WEP) encryption system. The WEP had become easy for hackers to navigate and had become quite out of date. TJX also failed to properly encrypt data on many of the employee computers that were using the wireless network‚ and did not have an effective firewall. The company had also purchased additional security programs that were not installed correctly. An alternative to the
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WAN Design Chad Vickery Axia College of University of Phoenix Acme Manufacturing is an organization that is growing and expanding their operations. They have acquired a plant in China and are expanding offices throughout the United States. Acme Manufacturing is looking to add communication that will allow all sites to transfer data with no trouble. Headquarters will be located in Atlanta‚ Georgia. Headquarters will house corporate operations‚ marketing‚ administrative staff and the accounting
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provide? 10. What is normalization and why is it necessary? 11. Why is there always some degree of error in floating-point arithmetic when performed by a binary digital computer? 12. How many bits long is a double-precision number under the IEEE-754 floating-point standard? 13. What is EBCDIC‚ and how is it related to BCD? 14. What is ASCII and how did it originate? 15. How many bits does a Unicode character require? 16. Why was Unicode created? 17. Why is non-return-to-zero
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Student name : Lê Đình Phương Student ID : 1151030 Class : 11CTT Report on REPRENSENTATION OF THE FLOATING POINT NUMBER REPRENSENTATION OF THE FLOATING POINT NUMBER Reference Materials: 1. Wikipedia Encyclopedia 2. Computer Organization and Design (David A. Paterson) I. INTRODUCTION: In computer science‚ we have unsigned and signed integer to represent the integer number‚ however‚ it only could be represent the number from 0 to 232-1 (from -231 to 231-1 with the signed
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Introduction & MIPS http://handoutsuite.googlepages.com 0. Things you’ll be learning – – a basic foundation about how computers work how to analyze their performance 1. What is Computer Organization? • Coordination of many levels of abstraction • Under a rapidly changing set of forces • Design‚ Measurement‚ and Evaluation Why learn this stuff? – – – to learn the inner parts and working of a computer you want to build better software you need to make a purchasing decision or offer “expert”
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SAMPLE OF TEST PLAN FOR SERVER Physical 2 Virtual CONVERSION DIVSS160 Server P2V Action Test Documentation (IEEE Standard) (ANSI/IEEE Standard 829-1983) Server Name: | DIVSS160 | Change Action: | P2V (Physical to Virtual Conversion) | Server Impact On Business In Failure: | High | Incident Number: | | Change Reference Number: | CRQ000000018241 | Author Name: | Andrew McLintock | Author Designation: | Solutions Architect / Team Lead | Project: | SQL Compliance | Proposed Date
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