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CS310 Quiz 2 Solution and Discussion

zaasmi Cyberian's last edited by
_______ statement is used to create database named MyDatabase in MySQL.
```
CREATE DATABASE databasename;
```
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What SQL clause is used to restrict the rows returned by a query?
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Use …… to add table in the database
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Which of the following PHP function is used to validate and sanitize the data?
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In PHP, in order to access MySQL database you will use:
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Which of the following PHP syntax is used to remove all illegal characters from a URL?
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_______ statement is used to add a new record to a MySQL table
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How will we retrieve the value of session variable set in the following PHP code?
$_SESSION[“color”] = “green”;
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Which of the following PHP syntax is used to remove all HTML tags from a string? CS310
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If we want to show all the session variable values for a user session then following code will be used.

print_r($_SESSION);
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SOLVED CS607 GDB 1 Solution and discussion
CS607 - Artificial Intelligence • solution discussion gdb1 spring 2019 cs607 • • zaasmi

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In general, machine learning algorithms apply In general, machine learning algorithms apply some optimization algorithm to find a good some optimization algorithm to find a good hypothesis. In this case, hypothesis. In this case, J is piecewise piecewise constant constant, which makes this a difficult problem , which makes this a difficult problem The maximum likelihood estimate Direct Computation. The maximum likelihood estimate of P(x,y) can be computed from the data without search. ) can be computed from the data without search. However, inverting the However, inverting the Σ matrix requires O(n matrix requires O(n3) time.
UNSOLVED MCM532 GDB1 Solution and discussion
MCM532 - Magazine Journalism • solution gdb1 mcm532 • • zaasmi

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Total Marks 5 Starting Date Thursday, August 01, 2019 Closing Date Friday, August 02, 2019 Status Open Question Title Sub editing Question Description The job of sub editor is very tough. Elaborate the tasks performed by the sub editor of a magazine before sending it for printing.
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Assignment No. 01  Semester: Spring 2019 CS605 - Software Engineering-II
CS605 - Software EngineeringII • spring 2019 cs605 software engine • • moaaz

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Assignment No. 01 Semester: Spring 2019 CS605 - Software Engineering-II Total Marks: 15 Due Date: 17th May 2019 Assignment no. 1 covers Lec#1 to Lec#8. Objectives of Assignment: • To learn the basic objective of software process models. • To understand the applications of different SDLC models. • To learn about the different phases of these process models. Uploading instructions: • Your assignment must be in .doc format.(Any other formats like scan images, PDF, Zip, rar, bmp, docx etc will not be accepted). • No assignment will be accepted through email. Rules for Marking: It should be clear that your assignment will not get any credit if: • The assignment is submitted after due date. • The submitted assignment does not open or file is corrupted. • Your assignment is copied from internet, handouts or from any other student (Strict disciplinary action will be taken in this case). Question no. 1: 5 Marks Give reasons for your answer based on the type of system being developed, suggest the most appropriate generic Software Process Model that might be used as a basis for managing the development of a Safety system for the nuclear power plants. Question no. 2: 5 Marks Explain why incremental development is the most effective approach for developing business software systems. Why is this model less appropriate for developing real-time systems? Question no. 3: 5 Marks Mention at least two reasons why it is more expensive to fix a bug that a customer encounters in production than a bug that the developer discovers during development. NOTE: Submit “.doc” file only. Every student should provide his/her own work, exact copying of the assignment (or some portion of the assignment) from the internet or other students will lead to copy case and zero marks will be awarded. Do not put any query on MDB about this assignment, if you have any query then email us at [email protected] Deadline: Your assignment must be uploaded/submitted on or before 17th May 2019. Spring 2019_CS605_1.docx
UNSOLVED CS201 Quiz 2 Solution and Discussion
CS201 - Introduction to Programming • solution discussion spring 2019 quiz 2 cs201 • • zaasmi

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Quiz 2 Total Questions : 10 Please read the following instructions carefully! Quiz will be based upon Multiple Choice Questions (MCQs). You have to attempt the quiz online. You can start attempting the quiz any time within given date(s) of a particular subject by clicking the link for Quiz in VULMS. Each question has a fixed time of 90 seconds. So you have to save your answer before 90 seconds. But due to unstable internet speeds, it is recommended that you should save your answer within 60 seconds. While attempting a question, keep an eye on the remaining time. Attempting quiz is unidirectional. Once you move forward to the next question, you can not go back to the previous one. Therefore before moving to the next question, make sure that you have selected the best option. DO NOT press Back Button / Backspace Button while attempting a question, otherwise you will lose that question. DO NOT refresh the page unnecessarily, specially when following messages appear Saving… Question Timeout: Now loading next question… Javascript MUST be enabled in your browser; otherwise you will not be able to attempt the quiz. If for any reason, you lose access to internet (like power failure or disconnection of internet), you will be able to attempt the quiz again from the question next to the last shown question. But remember that you have to complete the quiz before expiry of the deadline. If any student failed to attempt the quiz in given time then no re-take or offline quiz will be held. Start Quiz
UNSOLVED MCM610 GDB1 Solution and discussion
MCM610 - Mass Communication Law & Ethics • solution gdb1 mcm610 • • zaasmi

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Total Marks 5 Starting Date Thursday, August 01, 2019 Closing Date Friday, August 02, 2019 Status Open Question Title Public Interest Question Description ‘In the Public Interest’ is an excessively used cliché in mass media. What do you know about it?
SOLVED CS204 GDB1 Solution and discussion
CS204 - Cyber Law • solution discussion gdb1 spring 2019 cs204 • • zaasmi

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Actually, it’s difficult to compare the cryptographic strengths of symmetric and asymmetric key encryptions. Even though asymmetric key lengths are generally much longer (e.g. 1024 and 2048) than symmetric key lengths (e.g. 128 and 256), it doesn’t, for example, necessarily follow that a file encrypted with a 2048-bit RSA key (an asymmetric key) is already tougher to crack than a file encrypted with a 256-bit AES key (a symmetric key). Instead, it would be more appropriate to compare asymmetric and symmetric encryptions on the basis of two properties: Their computational requirements, and Their ease of distribution Symmetric key encryption doesn’t require as many CPU cycles as asymmetric key encryption, so you can say it’s generally faster. Thus, when it comes to speed, symmetric trumps asymmetric. However, symmetric keys have a major disadvantage especially if you’re going to use them for securing file transfers. Because the same key has to be used for encryption and decryption, you will need to find a way to get the key to your recipient if he doesn’t have it yet. Otherwise, your recipient won’t be able to decrypt the files you send him. However way you do it, it has to be done in a secure manner or else anyone who gets a hold of that key can simply intercept your encrypted file and decrypt it with the key. The issue of key distribution becomes even more pronounced in a file transfer environment, which can involve a large number of users and likely distributed over a vast geographical area. Some users, most of whom you may never have met, might even be located halfway around the world. Distributing a symmetric key in a secure manner to each of these users would be nearly impossible. Asymmetric key encryption doesn’t have this problem. For as long as you keep your private key secret, no one would be able to decrypt your encrypted file. So you can easily distribute the corresponding public key without worrying about who gets a hold of it (well, actually, there are spoofing attacks on public keys but that’s for another story). Anyone who holds a copy of that public key can encrypt a file prior to uploading to your server. Then once the file gets uploaded, you can decrypt it with your private key.
SOLVED CS609 Assignment No. 03 Solution and Discussion
CS609 - System Programming • solution discussion assignment cs609 • • zaasmi

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@moaaz Another Idea solution #include <bios.h> #include <dos.h> FILE *fp; unsigned char buf[1024]; unsigned char st[60]; unsigned char headno[10]; unsigned char secno[10]; unsigned char trackno[10]; void main (void) { int i; for (i=0; i<1024; i++) buf[i]=0; gets(st); fp=fopeon(st,”wb”); printf(“Head”); gets(headno); puts(headno); printf(“/nsector ”); gets(secno); puts(secno); printf(“/ntrack ”); gets(trackno); puts(trackno); i = biosdisk(2, 0x80, atoi(headno), atoi(trackno), atoi(trackno), 2,buf); } if(*(((char *)(&i))+1)= =0) { fwrite(buf,2,1024,fp); fclose(fp); } else { printf(“Cannot Read Error# = %x” i); }

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CS310 Quiz 2 Solution and Discussion

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