The following is an example of what type of CGI script?
#Hello, World! Script echoContent-type: text/html echo echo'<html>
<head><title>Hello, World!</title></head> echo'<body bgcolor=#FFFFFFF">
Joni, a system administrator, would like to test a Web server to see how it will withstand a load of 100 simultaneous hits. Which command would she most likely use?
A. ab -<100 127.0.0.1:80/htdocs B. ab -L100 127.0.0.1:80/htdocs C. ab 100 127.0.0.1:80/htdocs D. ab 127.0.0.1:80/htdocs 100 E. ab -n100 127.0.0.1:80/htdocs
Justin has entered the following lines into httpd.conf, but he is not sure what exactly these new lines will do. Which of the following will be caused by the lines Justin entered? (Choose two)
ExpiresByType text/html M604800 ExpiresByType image/jpg A2592000
JPG images will expire after a month in the client's cache.
JPG images will expire after a week of non-use.
JPG images will expire a month from the time they were changed.
HTML documents will remain active for a week from the time they were changed.
HTML documents will remain active for a month from the time they were changed.
HTML documents will remain active for a week in the client's cache.
Which of the following will occur if the StartServer Apache directive is set to five?
Five instances of mod_quickstart.o will be started.
Five child processes will be started for every request.
Five child processes will be started when Apache starts.
Five virtual hosts will be started for every request.
Which of the following is NOT an option that is supported by the Linux apachectl script?
An administrator wishes to install a new Apache module without recompiling Apache. He wants the modules automatically placed in the proper locations and the appropriate directive added in the httpd.conf file. Which of the following utilities will allow the
administrator to accomplish this task?
Using a name-based virtual host, how does a client make a request to the desired host?
The client listens for a particular IP address that is set in the httpd.conf file.
The client requests are compared to the server's /etc/hosts file.
The client browser provides the host header, which the server matches against the list of virtual hosts.
The client browser provides a virtual script that includes the desired port number.
Eddy is maintaining a large Apache server used for holding and transferring files via the
Web. He has accumulated many archive files with the tar.gz extension and would like to prevent them from being shown when directories are listed. Which line could he add to either httpd.conf or .htaccess to accomplish this?
IndexList no .tar.gz
IndexList !tar.gz off
Which of the following modules MUST be compiled into the Apache server?
A system administrator has entered the directive below into httpd.conf. Which of the
following will she have to type into the browser to get the aliased page? Assume the file access permissions are set correctly. Alias /html/ /user/local/my_dir/my_html/
Apache servers a document according to certain characteristics provided by the requesting browser. These characteristics of the document are called the document's dimensions. What dimension is used when Apache serves a request from a browser that has a preference for gzip compressed document?
You are the system administrator of an Apache server that houses the Web site
linuxsite.org. This site allows users with normal accounts to have home pages, and it houses several other mission critical Web sites. A user, Joe, has a home page that requires a change in one of the Apache configuration directives. Joe wants to allow or deny access to his home page based on a username/password combination. Which of the following is the best way to implement this change?
Allow Joe to configure the appropriate .htaccess file.
Install the mod_runtime_auth module and allow Joe to make the appropriate changes to httpd.conf.
Make the appropriate changes to httpd.conf file and restart httpd.
Make the appropriate changes to the global .htaccess file and restart httpd.
Which of the following represents a security concern of programming CGI scripts using the C programming language?
C programs must run with setuid root.
If the program receives more data then the amount of memory it has allocated, a buffer
overflow can cause the program to exit to a shell on the server.
Many early C compilers lack the ability to dynamically alter file permissions, which
result in many C programs running with root permissions.
CGI scripts written in C compile at runtime on the client system, which makes the
If the server and client do not have identical compiler versions; the lesser compiler is used, which may known exploits.
Jan wants her Apache server to be able to handle multiple requests over a single TCP
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New practicing equipment application
yet another chapter on my adventure helping a shopper undertake crew device. This time, the goal changed into to convert their NUnit test to team equipment checks.
here's no longer a very intricate topic given the high-quality conversion device purchasable on gotdotnet (here), which in reality does all of the be just right for you. despite the fact, I did come across a number of issues.
earlier than going into that, this is the fundamental manner I followed (fortunately, NUnit checks were alread 3X0-202y positioned in a single project (*.check)):
a. Create a brand new check venture (named *.check.TS)
b. Create the vital assignment folders
c. Add the imperative references
d. reproduction *.cs information from *.verify challenge to *.verify.TS
e. Set assignment properties if vital (build place, postbuild movements, etc.)
g. operate a look at various run with NUnit to investigate every thing is green
h. Run the NUnit Converter
i. eradicate Nunit references and construct once again
j. Run exams in TS and assess outcomes with corresponding run in Nunit (g)
okay. Commit pending adjustments
When the test challenge is created, a .vsmdi and a .testrunconfig file are additionally created and added to the soluiton folder. If new tests are introduced to the answer, the vsmdi file will should be checked out. to see all the checks accessible for the answer, open .vsmdi file (it presents a listing view of the examine which will also be sorted and grouped -- n.b. the opportunity of grouping checks into lists is just obtainable when you have VS group edition for Testers).
When changing a large assignment (about 2000 tests), I had to get across the following considerations:
1. category Attribute
classes don't exist in group device. The option is to use Description attribute or lists (lists are best attainable in the Tester edition). The converter device reacts as follows when discovering a category attribute:
exchange category("\(.+\)"),category("\(.+\)")\] through class("\1")]\n[TestProperty("Category","\2")\]
for instance: [Test, Category("Business"), Category("More Business")] turns into [Test, Category("Business")] [TestProperty("Category","More Business")]
notice that here's just a short lived solution to get the converter device to run until the conclusion. The final conversion offers this [TestMethod(), TestProperty("Category","Business")] [TestProperty("Category","More Business")] which is not correct because the equal property is used twice with diverse values. The 2nd property should still be modified to TestProperty("Category2","extra enterprise"), as an example (or use Description attribute instead).
2. Partial courses
Partial courses are not transformed as a result of they should not have the TestFixture attribute. You need to add it in order for the conversion to run, however afterwards remvoe the corresponding TestClass attribute (since it is a duplicate for the reason that the classification become partial).
three. Static strategies.
as a result of the TestFixtureSetUp conversion to ClassInitialize(), some methods needed to be transformed to static. additionally, given that the initialize method is now static, it can't be overriden anymore, however it does not really rely on account of aspect 4.
Let me explain. The initial scenario turned into as follows: you have got a set of check classes that inherit from a mother or father type. This guardian class carries a verify set up system used with the aid of almost all babies. people that want some extra/distinctive initialization override the method. Like this:[TestFixture] public class BaseTest [TestFixtureSetUp] public virtual void InitializeTests() // do some initialization [TestFixture] public classification MyTest1 : BaseTest [Test] public voic SomeTest base.InitializeTests(); // do different issues [TestFixture] public classification MyTest2 : BaseTest [Test] public voic SomeOtherTest base.InitializeTests(); // do different issues public override void InitializeTests() // do some other initialization
This scenario does not work anymore in group system on account of points3 and 4 (initialize methods are static and inheritance is not supported.
4. Inheritance is not supported in team equipment unit assessments.
yes, that's disappointing. This explains why the [TestFixtureSetUp] methods in a father or mother courses is not called. In team gadget trying out framework there are three attributes to initialize/clean up tests:
you should use these attributes. My advised answer is to change the TestFixtureSetUp attributes (converted to ClassInitialize()) in a guardian class via AssemblyInitialize and reorganize checks so that all exams needing this particular initialization are during this assembly.
Given the illustration above, this potential putting off inheritance, including an AssemblyInitialize on the InitializeTests system, and moving the MyTest2 classification to another assembly (in case you do not need it to use the InitializeTests at all) or including a TestInitialize formulation to MyTest2.InitializeTests (in case you are looking to add some further initialization certain to SomeOtherTest).
5. lacking TestFixture attribute
If a class doesn't have the [TestFixture] attribute, it is not converted (although it contains examine strategies).
here is the manner I went in regards to the "Validate a Sudoku Board” problem. however, keep in mind there are assorted the right way to remedy this, so don't worry if your solution has variations and it’s utterly possible there are more productive methods.
think free to imply your solution within the feedback here or within the original put up, but please be respectful of others’ efforts.My strategy
This one is relatively straight-forward, your simple project is to make sure that the price of any given mobilephone isn’t replicated in the cellphone’s row, column, or “dice”. The issue is how you go about this. there's a space-effective way, but requires extra looping, or there's a way that requires only touring any cell one time, however requires added space.
considering the fact that the puzzle is mounted in dimension (9x9 grid), I’ll select superior algorithmic complexity and use area to dangle the set of all numbers seen for each and every given row, column, and dice. through the use of 27 units to cling these values (9 for the rows, 9 for the columns, 9 for the cubes), we will simply see if we’ve alread 3X0-202y seen the latest quantity in the given row, column, or dice and immediately declare the puzzle invalid.
Of direction, we might get much more space-effective and use 27 BitArrays (or one huge one partitioned, etc.), but then we lose the elegance of set common sense. i love keeping things logically standard after which optimizing for space after deciding on there's a need, so I’d likely choose to use units in my original reply in an assessment, and then point out that if space have been a priority, i would then optimize to BitArray.
So, right here’s my answer:1: public class SudokuBoard 2: three: inner most read 3X0-202only char[,] board; 4: 5: // validate board is a 9x9 array 6: public SudokuBoard(char[,] board) 7: 15: sixteen: public bool Validate() 17: 18: // yes, i may use BitArray for area effectivity, however i like the logical think 19: // of the set and how it returns false on Add() if alread 3X0-202y there. 20: var rows = Enumerable.latitude(1, 9).opt for(i => new HashSet<char>()).ToArray(); 21: var columns = Enumerable.range(1, 9).choose(i => new HashSet<char>()).ToArray(); 22: var cubes = Enumerable.range(1, 9).opt for(i => new HashSet<char>()).ToArray(); 23: 24: // procedure each cell simplest once 25: for (int row = 0; row < 9; ++row) 26: 27: for (int column = 0; column < 9; ++column) 28: 29: var current = board[row, column]; 30: if (char.IsDigit(current)) 31: !cubes[cube].Add(current)) 37: 38: return false; 39: 40: forty one: 42: 43: 44: return proper; forty five: 46:
note that I’m no longer checking for invalid characters for the sake of brevity, even though we may quite simply do this in the constructor, or in the Validate() formulation itself:1: var present = board[row, column]; 2: if (char.IsDigit(existing)) 3: 4: // blah blah blah 5: 6: else if (!char.IsWhiteSpace(present)) 7: 8: return false; 9:
at last, right here’s an easy driver as an example usage:1: public static classification Driver 2: 3: public static void perform() 4: 5: var board = new char[9,9] 6: 7: '5', '3', ' ', ' ', '7', ' ', ' ', ' ', ' ', eight: '6', ' ', ' ', '1', '9', '5', ' ', ' ', ' ', 9: ' ', '9', '8', ' ', ' ', ' ', ' ', '6', ' ', 10: 'eight', ' ', '2', ' ', '6', ' ', ' ', ' ', 'three', eleven: 'four', ' ', ' ', 'eight', ' ', '3', ' ', ' ', '1', 12: '7', ' ', ' ', ' ', '2', ' ', ' ', ' ', '6', 13: ' ', '6', ' ', ' ', ' ', ' ', '2', 'eight', ' ', 14: ' ', ' ', ' ', '4', '1', '9', ' ', ' ', '5', 15: ' ', ' ', ' ', ' ', '8', ' ', ' ', '7', '9', 16: ; 17: 18: var validator = new SudokuBoard(board); 19: 20: Console.WriteLine("The Sudoku board is " + (validator.Validate() ? "legitimate" : "invalid")); 21: 22: abstract
Hope you had fun with this one! Of course, I’m sure many available can tweak the answer for efficiency in a number of approaches – but you get the element.
Have an answer that labored for you however become totally different? I’d love to hear about it!
reside tuned next week for the subsequent Little Puzzler.