...The final project is comprehensive, designed to apply course content to relevant issues concerning computer technology. The project provides you with a more comprehensive look at basic computer hardware. The project incorporates your foundational knowledge resulting from completing the Toolwire® labs, discussion questions, CheckPoints, and assignments. The scope of the final project leads you through the basics of computer hardware architecture, specifically with computer maintenance, repair, and upgrading. The Project: Maintaining and Optimizing Windows 7® Systems Lab and Study Guide * Complete the final project using the following instructions: 1. Log in to the student web page at https://ecampus.phoenix.edu/portal/portal/public/login.aspx. 2. Click on the Week Nine course page, then click the link to the Toolwire® Lab: Maintaining and Optimizing Windows 7® Operations. A new window will open containing its description. Scroll to the bottom of the page and click the Lab Access link to begin the lab. 3. Complete the lab. 4. Create a Microsoft® Word document and paste a screen shot of the final page of the lab. 5. Create a 1,050-word study guide for the Maintaining and Optimizing Windows 7® Operations Toolwire® Lab that describes the steps needed to maintain and optimize Microsoft® Windows 7® operations. The study guide must provide step-by-step instructions that are accompanied by descriptive screen shots. * Post the...
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...IEEE (Institute of Electrical and Electronic Engineers) published the first 802.11 standard in 1997; this was to be known as the first WLAN standard, also known as 802.11 Prime. Throughout the years these standards have been ratified and amended. The first revision was in 1999 with 802.11b, later in 1999 802.11a was amended; in 2003 802.11g was amended and 802.11n was amended in 2009. Of these four standards there are some similarities and differences. The differences between these standards are as follows: * 802.11b – 2.4 GHz ISM, uses HR-DSSS (High Rate Direct Sequence Spread Spectrum), Data rates using DSSS are 1 and 2 Mbps, HR-DSSS uses 5.5 and 11 Mbps. Backward compatible to 802.11 Legacy (Prime) DSSS only. * 802.11a – 5 GHz - UNII, uses Orthogonal Frequency Division Multiplexing (OFDM) allowing for 5 GHz RF frequency’s operating in three different frequency bands called the Unlicensed National Information Infrastructure (UNII). These frequency ranges are: * UNII – 1: 5.150 – 5.250 * UNII – 2: 5.250 – 5.350 * UNII – 3: 5.725 – 5.825 Data rates under this standard were mandatory at 6, 12, and 24 Mbps with optional support for 9, 18, 36, 48, and 54 Mbps. This standard is not backwards compatible. * 802.11g – 2.4 GHz ISM, this standard utilized Extended Rate Physical (ERP) to enhance the physical layer, by using ERP-OFDM & ERP-DSSS/CCK (Complementary Code Keying) Data rates of 6, 9, 12, 18, 24, 36, 48, and 54 Mbps are made available. (ERP-OFDM:...
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... It could also mean that there is significant down time which can increase the frustrations of the clients/customers. This could ultimately result in lost profits as the clients might choose to go elsewhere resulting in downsizing in the company. The list can go on for why a survey is a much needed item. There are three categories for tools that are needed to conduct a Site Survey. They are as follows: 1. Wireless tools – survey the access points 2. Measurement tools – measures radio frequency and packets 3. Documentation tools – blueprints, layout designs, Site Survey forms, and other supporting forms Reference University of Phoenix. (2004). Conducting a Site Survey [Multimedia]. Retrieved from University of Phoenix, IT241...
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