You are monitoring the temperature and vibration intensity on newly manufactured aircraft engines. You have measured 100 engines and fit the Gaussian model described in the video lectures to the data. The 100 examples and the resulting distributions are shown in the figure below.

The measurements on the latest engine you are testing have a temperature of 17.5 and a vibration intensity of 48. These are shown in magenta on the figure below. What is the probability of an engine having these two measurements?

Select one:

Anomaly detection flags a new input as an anomaly if p(x) < ϵ . If we reduce the value of ϵ, what happens?

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Say you have 5,000 examples of normal airplane engines, and 15 examples of anomalous engines. How would you use the 15 examples of anomalous engines to evaluate your anomaly detection algorithm?

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You are building a system to detect if computers in a data center are malfunctioning. You have 10,000 data points of computers functioning well, and 10,000 data points of computers malfunctioning. What type of algorithm should you use?

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You are building a system to detect if computers in a data center are malfunctioning. You have 10,000 data points of computers functioning well, and no data from computers malfunctioning. What type of algorithm should you use?

select one:

For a classification task; suppose you train three different models using three different neural network architectures. Which data do you use to evaluate the three models in order to choose the best one?

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True/False? It is always true that the better an algorithm does on the training set, the better it will do on generalizing to new data.

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In the context of machine learning, what is a diagnostic?

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What license is expected for contributed modules in used Joomla?

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True or False: Joomla allows multilingual support.

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True or False: Joomla modules support collaboration over competition.

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True or False: Joomla modules cannot be edited after update to 3.6.3

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What is a current version of Joomla?

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Joomla API stands for:

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What are plugins in Joomla?

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Which extensions aren't available in used Joomla?

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The basic Joomla element is:

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What will the value of $x be at the end of this script?

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<?PHP
$x=0;
$x=$x+1;
echo $x.” value”;
$x++;
?>

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What is an example of an open source shopping cart PHP application?

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What will be displayed by this code?

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<?php      
function TEST()     
 {         
     ECHO "HELLO WORLD!\n";  
 }
     test();
 ?>

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How do you join strings in PHP?

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What will this code display?

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<?php
    $a = 1;
    function Test()
    {
        echo "a = $a";
    }
    Test();
?>

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What will be printed?

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$var=’a’;
$VAR=’b’;
echo “$var$VAR”;

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What is the correct way to add 1 to the $count variable?

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How can comments be implemented in PHP?

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What will be printed?

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$var = true;
if ($var) {
     echo 'true';
} else {
     echo 'false';
}

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What will be the value of $var?

$var = 1 / 2; Select one:

Which of the following is a valid way to start a for loop in PHP that would print out the numbers 0 through 4?

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What character concatenates strings in PHP?

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Which one is NOT a valid PHP comparison operator?

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What is the valid way to start a PHP function?

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When installing online applications on a PHP server, what information is needed?

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What function can you use to get the position of a string or character inside a string?

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PHP variables are weekly typed, which means that:

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Given that a database table has a field called FirstName, which code displays an element or field from the database record?

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Given the PHP code:

$row=mysql_fetch_array($r); What type of variable is $row ? Select one:

True or False: PHP generated PDF files can use custom fonts.

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PHP can generate PDF files based on database data, which is useful in creating reports.

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True or False: PHP can not generate images, which are diferent each time a user visits the page.

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What parameters are required in the PHP function, which issues a command or query to the database?

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Which PHP function issues a command or query to the database?

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What parameters are needed to connect to a database? Select all that apply.

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What PHP function sets the database name to be used out of all the databases installed on the given server?

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What PHP function allows a connection to MySQL database:

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Dynamic content on the Internet means:

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What configuration parameter determines the location of the new software?

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What is the correct way to add 1 to the $count variable?

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What is the most common protocol on the Internet?

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What command installs compiled code?

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Static content on the Internet can be updated by:

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Web 2.0 applications promote:

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What command can be used to edit a text file on a Linux server?

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What command compiles the source code?

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What is the correct way to add 1 to the $count variable?

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What is the correct way to create a function in PHP?

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How do you get information from a form that is submitted using the "get" method?

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The PHP syntax is most similar to:

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True or False: In PHP you can use both single quotes ( ' ' ) and double quotes ( " " ) for strings.

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True or False: When using the POST method, variables are displayed in the URL.

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True or False:The PHP syntax is similar to many languages including C++ and Java, which makes it easy to learn for programmers:

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What is the correct way to end a PHP statement?

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All variables in PHP start with which symbol?

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How do you write "Hello World" in PHP?

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PHP server scripts are surrounded by what delimiters?

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What command extracts a tarball archive file?

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What is the most common extension for a source code package?

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True or False: Apache is called httpd on a Linux server.

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What does the “cd” command do?

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Social networks are part of which Internet era?

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What feature of Drupal allows administrators to customize the system and make it do new things?

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What feature of Drupal makes the look of the system flexible?

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True or False: Drupal can store files, which are then available to visitors for download.

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True or False: Drupal can be used at small organizations.

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True or False: Drupal cannot be used for large organizations.

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What feature allows users to modify content in Drupal?

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What major organization runs Drupal as their CMS?

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What file types is Drupal distributed in? Check all that apply.

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What language is Drupal written in?

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What systems allow efficient web site management?

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PHP script can perform the following functions:

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Identify a valid PHP variable:

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What is a correct way to add a comment in PHP?

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True or False: Software can be compiled at the command prompt.

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True or False: Source code can be executed.

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What Linux command downloads source code?

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What commands can be used on a Linux server?

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What program can be used on a Windows computer to access a command prompt on a Unix/Linux server?

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The speed of writing server code is increased when:

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Select an example of a server-side programming language:

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True or False: Server-side programming uses some of the same languages as client-side (workstation) programming.

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True or False: Server-side programming allows users to login to web sites and generate content each time the page is visited.

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True or False: Most of the web sites today are Web 2.0.

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What is a good example of static Internet content?

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Which database in the list is Open Source?

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What are examples of a scripted language? Choose all that apply.

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What are advantages of scripted applications over compiled applications? Choose all that apply.

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What is the name given to Internet technologies supporting user collaboration and data exchange?

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Of the alternatives to Hadoop noted below, which claims to be more flexible and removes the limits on the number of files processed?

The following are cluster mangers except:

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You are working on a Big Data analytics team and need to select an application that will allow for faster processing of a large amount of data. You want that processing to happen mostly in memory using a computing engine that allows for running most of those computations in memory. Which Big data tool is best suited in this context?

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