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1. Design a file access system to allow certain users read and write access to a file depending on authorization set up by the system. The instructions should be of the format READ(F, User A): Attempt by User A to read file FWRITE(F, User A): attempt by User A to store a possibly modified copy of F. Each file has a header record, which contains authorization privileges that is a list of users who can read and write.
2. A decentralized NIDS is operating with two nodes in the network monitoring anomalous inflows of traffic. In addition, a central node is present, to generate an alarm signal upon receiving input signals from two distributed nodes. The signatures of traffic inflow into the two IDS nodes follow one of four patterns: P1, P2, P3, P4. The threat levels are classified by the central node based upon the observed traffic by the two NIDS at a given time and are given by the following table If, at a given time instance, at least one distributed node generates an alarm signal P3, what is the probability that the observed traffic in the network will be classified at threat level ‘Medium'?
Write an instruction sheet for the user so that she can make the modi cations to her home machine so that she can access the le on the ash drive containing the encrypted le system.
Generate the intermediate code for the following expression assuming the usual rules concerning parentheses, precedence and associativity. Be sure to reuse temporaries as soon as possible: x + (5 - y) * z - 1
How about using a break in a switch statement, show how you can really have a problem if you skip the break statement in a switch.
What do you feel are the benefits and pitfalls of recursion? Share examples, experiences, and recommendations.
Show how to perform 77 / 3 in the HCS12. Store the quotient in a WORD-size variable called result, and the remainder in a WORD-size variable called remainder.
Derive taylor's polynomials of degree n for: f(x) = (1+x)^(1/2) and f(x) = cos x. Find the approximate value of above functions at x = pi/4 by hand calculator upto two decimal points. Show steps.
Dscribe implications of e-publishing as they effect way we read and understand content. Describe e-books, print on demand, copyright and XrML and use of multimedia.
Include Denial of Service attacks, Spoofing, Replays, TCP Session Hijacking, and Attacks on Encrypted Data (such as passwords).
Process-centered review of object oriented software development methodologies, ACM Computing Surveys (CSUR), Volume 40 Issue 1, February 2008, Raman Ramsin, and Richard F. Paige.
Place the two 3d points A and B in two different locations in a simple stereo diagram which demonstrates these two possibilities. Draw a different picture for each situation.
Prove that p(y|X=x)~Bin(n-x,b/1-a) where x,y,z have multinomial distribution with parameters a,b,c and n.
create a console-based application whose Main() method accepts ten integer values from the user and stores them in an array. Next, create a method that determines and displays the smallest and largest of the ten values
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