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Potpourri_5 PTS   5. [2 Points] Imagine multiple producers putting items into the same channel in PTS.  Do the threads need to use mechanisms like pthread’s mutex lock to avoid stepping on one another?  Why or why not?

Security_2 AFS   2. [3 points] Consider the bind process in AFS listed below. Explain how ClientIdent is generated and further explain its significance.

Security_3 AFS   3. [3 points] Georgia Tech has decided to implement AFS in its original form as a thought experiment. You are a part of a Red Team exercise called on to evaluate the safety of Andrew File System. Highlight 3 different ways in which you could mount a denial of service attack against AFS. (You are free to assume that you have legitimate user access to the system for the scope of the question.)

Real_time_and_Multimedia_1a TS-Linux   1. Assume that you are playing a game (G) on a version of TS-Linux in which the scheduler strictly follows the born priority of all the processes in making its scheduling decisions. The game uses ONE-SHOT timer with an overshoot parameter of To. The timer event goes off at time 0. Assume the following: When the timer goes off, the kernel has just started a critical section of duration Tk. For taking the necessary gaming action for the timer event, the video game application (G) has a processing time of Tg and priority P1. In addition to Tg, the application will need to make a blocking call to a Window Manager process (W) has a processing time of Tw and priority P3. When the timer goes off, the scheduling queue is empty. The priorities are ordered as P1 > P2 > P3 > P4 > …. With P1 being the highest priority. There are no periodic timers in the system. Duration of the scheduling time and interrupt handing time are negligible. Note that the given image is simply for your reference, and that the time Th has nothing to do with the solution. Only use the variables given in the text in your solutions.   (a) [4 points] What is the maximum latency from time 0 for G to complete the action in response to the timer interrupt? Show your work.

Please submit your work in a single pdf or doc file.

In videos, especially in advertisements and on social media, an important trend currently gaining traction is the use of ASMR stimuli. What are some potential implications or consequences of incorporating this strategy into content?

Failures_and_Recovery_4 QuickSilver   4. [3 points] A text editor is running as a process on top of Quicksilver. It would like to give users the assurance that their changes will not be lost if there is failure (either power or software). What should the process do to give this assurance? 

Use linear approximation to estimate the value of Calculators are NOT allowed on this problem.   Click ‘True’ when finished

Provide one or two sentences in answering each of the following: -How appropriate was the information on macroeconomics for this course?  -Was it presented in a good timing? i.e. would you prefer to see it earlier in the semester?  -Do you have any suggestions on what changes can be done in the material? -Did you learn something about macroeconomics? Thank you for your answers.

Work out the range of the data Pic 4.docx