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Experiment by running multiple instances of the program in Listing 55-1 (t_flock.c) to determine the following points about the operation of flock():
a) Can a series of processes acquiring shared locks on a file starve a process attempting to place an exclusive lock on the file?
b) Suppose that a file is locked exclusively, and other processes are waiting to place both shared and exclusive locks on the file. When the first lock is released, are there any rules determining which process is next granted a lock? For example, do shared locks have priority over exclusive locks or vice versa? Are locks granted in FIFO order?
c) If you have access to some other UNIX implementation that provides flock(), try to determine the rules on that implementation.
You will use the Employee and Department tables you created previously. Create, run, and test SQL queries to display each set of information below. Save a copy of your queries in a Microsoft Word document. Include a screen shot of the output immediat..
What would be the estimated impact on cost of the equipment
what continuing education is required for the holder of a CISSP to remain current and in good standing.
Evaluate the level of impact of IT / enterprise architecture on information management (e.g., the flow of information throughout the company / organization, etc.) within a company or industry of your choice
Prompt the system administrator for all valid input parameters.Ask if a wall needs to be sent, and if yes, send the message.
How to find the big theta for execution time of recurrence algorithm and the big theta for memory.
Write a MARIE program using a loop that multiplies 2 non-negative numbers by using repeated additions. For example, to multiply 3 x 6, the program would add 3 six times (e.g. 3 + 3 + 3 + 3 + 3 + 3) or add 6 three times (e.g. 6+6+6).
Define the balance for some of the accounts to be less than $500 and some to be more than $500. After you have created your accounts print your account list, then withdraw $500 from all accounts and redisplay your list.
Suppose a short while later L replies to M. Give a sequence of events that leads to one packet from M and one packet from L circling the loop in opposite directions.
Write a program that calculates the total average of each student in a class along with his/her letter grade and then displays information about the student with the highest score and the student with the lowest score and displays the list of all ..
A relational Database Model allows database users to analyze data thoroughly.
Draw a UML diagram for storing a played game of chess in a database. You may look at http://www.chessgames.com for an application similar to what you are designing. State clearly any assumptions you make in your UML diagram. A sample of assumption..
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