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1. The open-file table is used to maintain information about files that are currently open. Should the operating system maintain a separate table for each user or maintain just one table that contains references to files that are currently being accessed by all users? If the same file is being accessed by two different programs or users, should there be separate entries in the open-file table? Explain.
2. What are the advantages and disadvantages of providing mandatory locks instead of advisory locks whose use is left to users' discretion?
3. Provide examples of applications that typically access files according to the following methods:
• Sequential
• Random
Generate a table showing the data structure for the first two respondents in the NCS-R data set.
Add the two binary numbers and interpret the sum assuming that the numbers are (1) unsigned, and (2) signed.
Review Chapter 2 regarding the hardware revolution and Chapter 3 regarding the software revolution from your course text. What is hardware? What is software? How is hardware different from software?
What CAIN cryptographic services do symmetric ciphers provide?
Define a software process. How do software myths affect a software process?
Display a message indicating whether the player's guess was correct, too high, or too low. (After you fi nish Chapter 4, you will be able to modify the application so that the user can continue to guess until thecorrect answer is entered.)
What is the smallest exponent the IEEE standard allows for a 32-bit floating point number?
Propose three to five additional activities you think should be added to a Gantt chart to help you estimate resources and durations. Write a one-page paper describing these new activities.
Which is the fastest form of RAM but also the most expensive. Due to its cost it is not used as main memory but rather for cache memory.
Suggest reasonable values for the items in the risk register for this asset and threat, and provide justifications for your choices.
Plot the points and graph the line as a check on your calculations.
Assume a static timeout value of 2 seconds, that slow start is used on a timeout, and that ACKs sent at about the same time are consolidated. Note that R's queue size is now irrelevant (why?).
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