sequential access file‚ you can jump directly to any piece of data in the file without reading the data that comes before it. False 2) In most languages‚ when you open an output file and that file already exists on the disk‚ the contents of the existing file will be erased. True 4) The purpose of an EOF marker is to indicate where a field ends. Files typically contain several EOF markers. False 5) When an input file is opened‚ its read position is initially set to the first item in the file. True Algorythm
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Personal Budget Exercise – MS Excel (These instructions are also attached here as a Word document) Creating a spreadsheet to track personal expenses is an excellent use of Microsoft Excel. For this exercise‚ you will create a spreadsheet to enter a personal budget and track actual expenses for the year. You may choose to use real data or create a fictitious budget using a monthly income amount of $2‚500. Here are suggested budget categories if you are not using a real budget. At a minimum‚ you
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‘asset replication’. 6.6 The formula to arrive at an NPV for asset replication in perpetuity is: or Explain how this formula works‚ and show how it can be set up as a generic calculation within an Excel spreadsheet. 6.7 Assume that White Knuckle Airlines Inc. operates a regional fifty-seat jet aircraft fleet. White Knuckle expects that there will be a constant demand for this type of flight service‚ and that the model of aircraft employed will
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Marriot Case Marriot use the Weighted Average Cost of Capital to estimate the cost of capital for the corporation as a whole and for each division‚ and the hurdle rate is updated annually.(WACC = (1-Tc) * (D/A) * R[D] + (E/A) * R[E]) Marriot’s Tax Bracket = 175.9/398.9 = 44% Division’s asset weight to the corporation: Lodging = 2777.4/4582.7 = 0.59 Contract = 1237.7/4582.7 = 0.28 Restaurant = 567.6/4582.7 = 0.13 Risk free rate is 30 years T-Bond = 8.95% (Lodging use long-term debt)
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tolerance‚ and automatic recovery must be integral to the system. Second‚ files are huge by traditional standards. Multi-GB files are common. As a result‚ design assumptions and parameters such as I/O operation and blocksizes have to be revisited. Third‚ most files are mutated by appending new data rather than overwriting existing data. Random writes within a file are practically non-existent.Given this access pattern on huge files‚ appending becomes the focus of performance optimization and atomicity
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File Management Requirements The following paper will discuss the Unix Operating System and how to implement a protection scheme that permits multiple users access to one file‚ with the exception of denying access to a particular group of users to the same file. Including the importance of protecting file sharing permissions to users. Perhaps a business has a system that will support 5‚000 users‚ however only 4‚990 users are granted permissions to access one particular file. In order to grant access
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UNIX offers a file protection system that is straightforward and simple to use. However‚ many people are not aware of the value of this powerful mechanism. A secure environment is achieved not only by the operating system‚ but also through vigilant user and administrative practices. There are many schemes and mechanisms used in the UNIX operating system‚ as well as some simple tricks that are available to give the kind of file protection administrators want. For the purpose of this paper‚ a company
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Unix File Access POS/355 UNIX® is provides security to directory and the file system. For security reason a file or directory has assigned permissions to use them and every user in the UNIX system is assigned set of permission while creating user account. Before going to discuss the file permission‚ let’s discuss the user account types in the UNIX. There are three types of user accounts on a UNIX system that are root account‚ system account and normal user account. Root account: It is a
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Training Progress Wednesday‚ March 11‚ 2015 Student: Tojuola John Assignment: Excel Tutorial 3 Training - 512921 Percent Complete: 100% (10/10) Subject Launch Assignment Activity Task ID Task Completed MS Excel 2013 Fill adjacent cells with formulas 3305 Fill cells C17 and D17 with the formula from cell B17 by selecting cell B17‚ then positioning the mouse over the lower-right corner of cell B17 until the fill handle appears. Press and hold the left mouse button‚ drag the mouse over
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Types of file sharing Peer-to-peer file sharing Users can use software that connects in to a peer-to-peer network to search for shared files on the computers of other users (i.e. peers) connected to the network. Files of interest can then be downloaded directly from other users on the network. Typically‚ large files are broken down into smaller chunks‚ which may be obtained from multiple peers and then reassembled by the downloader. This is done while the peer is simultaneously uploading the chunks
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