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Computer Science

  1. Hey, every one. I decided to upgrade my Home Office Work Station / Computer Lab for 2020. It was definitely time for an upgrade for productivity and down right sanity running some of these newer O.S.’s as bloated as they are. The use cases would be as a DAW(Digital Audio Work Station),DVW(Digital Video Work Station), crypto trading box., along with image editing, etc.. I decided to go with an HP z800 Work Station box for my upgrade path. I know this a 9 year old system but I think it can still hang today in 2020 for what I need done. For under $500. This thing is less then half the price of a HP z840 work station and should be perfectly capable for what I need…

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  2. Hi guys:) Is Neuralink a threat to humanity where people will go extinct because they can go full dive in Virtual reality with a brain implant? Will we really get Neuralink by 2038? Or is this all doomed to fail? Thanks?

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  3. I have one #AI def x (): all(Q) |= set(Q is none) >>= any(a) |= set(none) is V is a is (Q.intersection(V is a)) def p (): while X <= 2: X = X + 1 any(x()) in X(p(x()) is 0) or all(x()) in X(p(x()) is 1) q="" while True: i=32 while i < 126: i= i + 1 a = chr(i) p() if 1: q = q + a elif 0: q = q if q == q + "": break print (q) x() and p() have syntax errors I have no idea about granted some more time thinking might help but its good to get out there

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  4. Started by zak100,

    Hi, I ran the following program on the answer set: p :- not q. r :- p. s:- r, not p. I executed the program on clingu (https://potassco.org/clingo/run/) I am getting the Answr set (AS) : {p, r} Why s is not in the answer set. Some body please guide me. Zulfi.

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  5. Started by Nandhini,

    Can interrupts be interrupted in OS? How can we handle it?

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  6. Started by Nandhini,

    Can interrupts be interrupted in OS? How can we handle it?

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  7. I was studying some computer science concepts when I realized that I am missing some key fundamental understanding. I am not entirely sure what other ones are, but one concept that I am sure that I am having problems with is information. What exactly is information conceptually? Is it a pattern of behavior? Is it the classification of some signal making it useful to some system? Once I understand this I believe that I can understand data and thus more built to programming and computer science concepts. Thank for all future answers

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  8. Started by zak100,

    Consider the following pseudo-WEP protocol. The key is 4 bits and the IV is 2 bits. The IV is appended to the end of the key when generating the keystream. Suppose that the shared secret key is 1010. The keystreams for the four possible inputs are as follows: 101000: 0010101101010101001011010100100 . . . 101001: 1010011011001010110100100101101 . . . 101010: 0001101000111100010100101001111 . . . 101011: 1111101010000000101010100010111 . . . Suppose all messages are 8 bits long. Suppose the ICV (integrity check) is 4 bits long, and is calculated by XOR-ing the first 4 bits of data with the last 4 bits of data. Suppose the pseudo-WEP packet consists…

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  9. Started by zak100,

    Hi, I am trying to run the following code. I am getting error while executing the line: truffle(ganache)> const putAmount = putBalance.c[0] The error is : I have uploaded the image of the whole program. I don't have much knowledge of Javascript. Somebody please guide me how to define the property 'c[0]'. Zulfi.

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  10. Hey everyone, hope you are doing fine in these tumultuous times! Edit: I found my mistake: I used 'if' instead of 'elif', therefore the code executes: is r larger than 2, if not, ArrayB = Array (which is the original array of length 10). I have the following code, what I don't understand is that without the 'if r > 2:' part of the code, len(ArrayB) will be 20 in both cases (r =2) but with this piece of code, which is not running, len(ArrayB) becomes 10 (= losing False variables). I don't understand how why this piece of code affects the rest of my code, when r is not larger than 2? I am running python 3.8 in Pycharm r = 2 Array = [0,1,2,3,4,5,6,7,8,9…

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  11. Started by zak100,

    Hi, I have a question which I want to solve using MonteCarlo Method Suppose we have a car for sale and a buyer is 65% satisfied with the price of the car, 75% satisfied with the outlook of the car like its body, color, tires and 85% satisfied with the running i.e. the engine? What is the probability that the car would be sold to the said buyer? How we can do a simulation using Monte Carlo Method? I found the answer as: 0.65 * 0.75 * 0.85 = 0.4143 Is this a correct solution? Also please tell me can I use MoteCarlo method for one person? Zulfi.

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  12. Hi, I am trying to capture the SSL/TLS packets in the log file. I am following wiki's article but my SSLKeylogfile is empty. I am working in the ubuntu's (18.04) virtual machine. My wireshark version is 3.2.4. I am also attaching an image. Somebody please guide me what is my mistake? Zulfi.

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  13. Started by zak100,

    Hi, I want to do capture SSL packet and then decrypt it using wireshark. I saw a video which captures the packets and it shows keyed packets in a video. I have provided a link for the video: I have also attached the image. I want to know how can I decrypt the packets using wireshark? Zulfi.

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  14. Hi, I have installed 3.2.4 version of wireshark but in Edit-> Preference->Protocol I can't see the SSL protocol so I selected TLS. Now I can't see nstrace.sskeys in (pre) Master-Secret log filename. I am following the tutorial at: Decrypting SSL and TSL traffic Somebody please guide me is this file necessary for "decrypting SSL and TLS Traffic using wireshark" Zulfi.

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  15. Hi, I am seeing a tutorial, it shows me the interfaces which I have on my computer but wireshark is showing me different interfaces. I have attached the image of both the tutorial and what I am seeing on the wireshark. Somebody please guide me how to select the interfaces related to my computer and how to capture the packets Zulfi.

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  16. Started by mcmiller,

    I recruit in IT, and my team is working on a web-app, but we are getting conflicting information. Our web-app should get 10s of thousands of daily traffic. We are concerned about scaling up a client-server model. We think microservices or "serverless" model might be the solution. We we speak with the companies that will help us with this, all we hear is bias and self-interest. Do any of y'all have an experienced opinion on the matter? Pros and cons... what should we look out for?

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  17. Started by Nandhini,

    How can i ask true or false questions in different method?

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  18. Started by Computer Application,

    Write about karnaugh map in digital principles

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  19. Started by Nandhini,

    What is linear array in data structures? What is the advantage of linear array?

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  20. Started by Nandhini,

    Explain about Regression?

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  21. Started by Nandhini,

    What is Multi dimensional array in Data structures?

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  22. Started by rejespo,

    Hi all, I have a question. ALAN TURING'S contributions to Computer Science helped to the development of the internet? Thanks.

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  23. Hi, I am trying to understand the following question: In a 3-bit block cipher, suppose a sender transmits a cipher text including c(1), r(1), c(2), r(2), c(3), r(3) to a receiver. Find the original plaintext at the receiver. Here c(1) = 100, r(1) = 001, c(2) = 010, r(2)= 111, c(3) = 000, and r(3) = 100. A block cipher encryption key table (Ks) is also shown below: The answer for the first case is: M(1) = Ks(c(1) XOR r(1) = Ks(100) XOR 001 = 010 From the table, the output corresponding to 100 to 011. But the above answer is 010. I can't understand this. Somebody please guide me. Zulfi.

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  24. For reasons other than gaming, what are the main points that an average person could use a strong computer for certain subjects (business/school)

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  25. Started by rajasahib,

    I am relatively new to the language and due to my project partners mouth I now have to complete my FYP on Android and ahve no prior knowledge. Anyone can suggest how to get started, I know there are many tutorial videos available but need to know where to begin from

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