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Your friend has a windows XP desktop system that contains important data. He frantically calls you to say that when he turns on the computer, the lights on the front panel lights up and he can hear the fan spin for a moment and then all goes dead. His/her most urgent problem is data on his/her drive, which is not backed up. The data is located in several folders on the drive. What is the quickest and easiest way to solve the most urgent problem, recovering the data? List the major steps in that process.
Let us start off with once widely used Data Encryption Standard (DES) which was created by International Business Machines (IBM).
Describe how the Kerberos authentication process work and outline the main components within the Kerberos environment, their respective functions and the level of security provided by Kerberos. Draw a diagram supporting your explanation Explain..
Add the two binary numbers and interpret the sum assuming that the numbers are (1) unsigned, and (2) signed.
As part of a larger system project. Clone Bank of Clone, Colorado, desires your help in setting up a new monthly reporting form for its checking account customers.
Would you see hidden file by just looking at the floppy using Windows Explorer? Why or Why not? What other tools could you use to retrieve evidence?
Believe or not digital dashboards can be found in automobiles. In fact, Mossberg (2010) wrote article titled, "Ford Drives Digital Dashboards to Next Level. Are drivers ready for this kind of technology?
Illustrate the circuit diagram of the following circuit and create truth table for half subtractor and full adder. Full subtractor and Half adder.
How many different seven-digit phone numbers (ignoring area code) can be formed? Can city of 2 million people be served by single area code? Describe.
Delimiter marks only the beginning of the comment (for one line comments). Write the advantages and disadvantages of each of these with respect to our criteria.
What is meant by protocol? Why are protocols essential in data communications?
Explain how concepts such as RISC, pipelining, cache memory, and virtual memory have evolved over the past twenty-five years to improve system performance.
Workstation uses a 15-MHZ processor with claimed 10-MIPS rating to execute a given programme mix. Suppose a one-cycle delay for each memory access. Compute effective CPI of this computer ?
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