Here we have mentioned most frequently asked Joomla Interview Questions and Answers specially for freshers and experienced.
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Joomla is a content management system. It allows you to build online applications and web sites. Joomla is an open source and available freely.
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In Joomla mambots are mini-programmes or plugins, which performs programs like modifying content before display, extending the site search, adding core functionality and so on
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Benefits of Joomla is
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A site template divides the page into a number of positions like nav, header, footer, top, bottom, module1, etc. This is nothing but position.
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Modules are small content items which can be displayed anywhere in websites by assigning positions in the template.
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Joomla is frequently seen in
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By accessing global configuration site tab, you can manage favicon and upload a new favicon from there.
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Components are core elements of Joomla’s functionality. These core elements include content, banners, contact, polls, news feed and web links
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Joomla | Drupal |
Joomla uses plugin and modules | Drupal has a module only |
In order to support php code in Joomla, you need to install plugin | You can directly write PHP code in Drupal |
Relatively lower technical learning curve | Relatively higher technical learning curve |
Joomla uses Less and BootStrap. | Drupal use smarty template |
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Joomla have prefix like jos_
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Joomla framework enables developer to build quickly and easily
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Database setting are stored in the root directory under configuration.php
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mod_module_name.php
mod_module_name.xml
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The link from the menu will begin with an https:// if you set the SSL enabled option to on
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To set the site meta-data for the installed website, you have to choose “Global Configuration.”
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Toolbar.php file is loaded by index.php file to provide a menu bar to the administrator interface
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Most of the CMS ( Content Management System ) is considered as a web applications. However, even desktop application can also be communicated with Joomla server by following the standard protocols.
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Contents are the html pages which are managed by admin, and it may have rich text, CSS, JavaScript, Images, links to internal or external pages.
While contents are categorized in categories, for example X category have zero or more contents pages
While categories are again classified in section, means 1 section have zero or more categories
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From the backend of your Joomla site ( administration ) select installers and then the type of extension ( component, mambot/plugin, module, site template and so on )
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Joomla supports MySql database
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To change the image in your template, go to
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The drawback of Joomla are
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Joomla does not have html pages as such it is a database driven CMS (Content Management System), but rather pulls up the pieces of pages from a Mysql database. When you install Joomla by default, it has a menu link to the frontpage component as the home page. However, any component or content or another link can be used as a “home” page
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Joomla can be used as a blog, but it way more powerful and feature rich compared to full-blown blog systems like WordPress. Joomla should be preferred when your requirements are more than just blogging
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Joomla supports Remote Procedure Calls and XML-RPC services
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Site templates divides the “pages” displayed on a site into a series of positions, each with a different name.
You can view the location of positions in your default template from the administrator
go to Site =>Preview=>Inline with Positions.
You can annotate your positions through the administrator (backend).
Go to Site=>Template Manage=>Module Positions.
You can add or remove positions by modifying your template html.
You assign a module to a position using the module manager.
Modules=>Site Modules
On the left side of the page, on the third line, there is a drop down menu that lets you select the position.
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The joomla favicon is stored in the /images folder. The file is called favicon.ico. By definition a favicon must be 16×16 pixels. If you wish to use your own favicon, rename the default joomla favicon.ico file and put your file with that name in the images directory.
Alternatively, you can change the favicon in the Joomla! global configuration Site tab (on the bottom).
Depending on your browser, you may not see the icon immediately. This is because the favicons are cached, which is why they can appear in your bookmark list. So, to see your favicon, you will need to clear your browser cache.
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Frontpage is a component that is part of the core of Joomla!, like the front page of a newspaper, it shows (usually) multiple pieces of content arranged in some way.
When you install Joomla! the front page component is by default set as the homepage of your site (that is it is the first link on your Main Menu) but front page does not have to be your “home” page.
What exactly appears on the front page and how it is laid out is controlled in two ways. First, if you open the menu link in your menu manager in the backend there are numerous parameters that control the number of items shown, the number of columns etc.
To control which items are shown you must also indicate that an item should be placed on the front page by editing the parameters for the content item. In the backend this will be indicated by a check mark in the front page column of the list of content items.
In addition, you can use the front page manager (in the content menu of the backend) to control the publication dates and other variables for content items that are on the front page.
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One common template change is to use your own graphic/image. Simple graphics (not banners) are linked in the html file. Simply change the reference to the image of your choice in the html file of your template. In the administrative interface do this by going to Site =>Template manager and then selecting your template. Click the icon for html.
Keep in mind that it if it is a different size than the original image this may change the appearance of the site in unexpected ways.
Additional information:
The images for a given template are generally located in this folder: /templates /templatename /images (Substitute the name of the template you are using in place of “templatename”).
A trick for finding the name of the image is to put your cursor over it and click right. Select view image. This will display the image and give its full url. Sometimes the images are background images. This is viewable in Firefox or you can look for the background tag in your page source.
How to upload an image: There are many ways to upload images. Which one you use will depend on your host and server.
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In this case the breadcrumb for that page would look like: “Home >> Books >> Pages >> New Page”.
If you wish to eliminate the pathway entirely, edit your template html (index) file. Usually it will look like this:
If you wish to eliminate it on a specific page, such as just the home page, you can modify the template in this way:
New line:if($option != "" && $option != "com_frontpage")
New line:{
New line:?>
Existing:
Existing:
Existing:
New line:}
New line:?>
Understanding: The first line says that if the option in the url does not equal com_frontpage (!=”com_frontpage”) display the pathway. In php ! means not.
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Content elements or applications that are usually displayed in the center of the main content area of a template. This depends on the design of the template in use.
Components are core elements of Joomla!’s functionality. These core elements include Content, Banners, Contact, News Feeds, Polls and Web Links.
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Modules extend the capabilities of Joomla! giving the software new functionality. Modules are small content items that can be displayed anywhere that your template allows it to be displayed by assigning them to positions and pages through the module manager in the administrative interface.
Modules are installed in the Admin Section. Joomla! modules may include: Main Menu, Top menu, Template Chooser, Polls, Newsflash, Hit Counter, etc.
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Joomla! Features: Completely database driven site engines
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Joomla is used all over the world to power Web sites of all shapes and sizes.
For example:
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Administrator
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extension_dir
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com_comprofiler
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Global Configuration
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This option will make the link from the menu begin with an https://
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Yes.
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Toolbar.php
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Mysql
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Joomla is released under the Gnu General Public License 2 (GPL).
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Mambots are small codes or mini-programs, which when given, either activate a program, script or conduct a function on a database.
For example, there are mambots WYSIWYG editors. There are mambots for several other specific taks like this.
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In the new version of Joomla 1.5, mambots are called plug-ins. In some 3rd party components, mambots and modules themselves have plug-ins. Hence, plug-ins can be given the same definition as a mambot, that they are small codes or mini-programs, which when given, activate a program or script or conduct a function on the database.
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Use a link type Separator or Placeholder to make a menu link that is non-clickable. We can also remove the link from the administrator panel, which is in the “menu” option.
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Get the URL for the particular page you want to link this to. Create a link using a specific editor or with html, if you have no wysiwyg.
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If you are on a particular page and to get to that page you had to go through several folders to find that particular page, then that series of links will be your pathway or breadcrumb. For example: Home >> Books >> Pages >> New Page.
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If you want to eliminate your pathway permanently, you have to edit your html (index) file, which will normally look like this:
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In the newsflash, one can display any content in specific sections.
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The procedure will be as follows:
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No.
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To remove the wrapper, click on any of the links on the menu of the parent page.
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The locks on any specific area on the screen mean that the item is being edited currently.
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The locks can be removed simply by saving the edited items.
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Contents are the elements that are displayed in the center of the main content area of the page. They include vital functions like content, banner, newsfeed, contact, web links and polls.
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At any given time you may see a padlock next to a specific item in Joomla!’s administrative backend. These padlocks may be displayed next to any of the following (Content Items, Menu Items, Modules, etc).
The Joomla! system places these padlocks next an item to indicate that a user is currently editing (checked out) the item. The lock is removed by the sytem when the user clicks on the “Save” button for that item.
If the user never clicks save and instead hits the “Back” button or naviagtes to another page, then the item stays locked. If another user needs to work with the item he or she must have the item checked back in before the can work.
There are two ways of checking items back in. One way is to contact the person that has the module checked out to see if they are done with the item.
The other option utilizes the administrative back end;
Click on "System => Global check in"
This option should be used very carefully, especially in multi-user environments. This single action checks in all previously checked out items, whether they were checked out by you or not. Possible undesirable side effects may be that multiple editors end up working on the same document.
In this case who ever clicks the save button last has their version saved as the final copy.
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Joomla! is released under the GPL (Gnu General Public License 2).
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A Mambot is a small, task-oriented function that intercepts content before it is displayed and manipulates it in some way. Joomla! provides a number of Mambots in the core distribution, e.g. WYSIWYG editors, but there are many other mambots available for specific tasks.
Some 3rd Party developer components have their own mambots which need to be installed in order to make the component work properly. In Joomla! 1.5 mambots will be renamed plugins.
Plugins: The new name for mambots. In addition, some 3rd party components, modules and mambots themselves have plugins.
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The page that contains the link you click on to load the wrapped content is the parent page.
You can get out of the wrapper by clicking on anyone of the links in the menu of the parent page.
If there are no other menu items visible then the wrapper may have been loaded directly into the parent page, replacing the content that was initially there.
This however defeats the purpose of having a wrapper which is a means of simply enclosing content from another site within the parent site.
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Your “homepage” in a traditional html site–the page that shows when you type mydomain.com for example– would be the page displaying that is in the index.html file.
Jooma! is a database driven CMS so it does not have html pages, but rather pulls up the pieces of pages from a mysql database.
The “page” that shows when a user navigates to mydomain.com is the page created by clicking on the first link on the Main Menu. The link can be called anything (Home, Bob it does not matter), that is the page that will show.
This menu can be displayed anywhere and can be displayed vertically or horizontally or not at all. The menu does not even need to be published.
When you installl Joomla! by default it has a menu link to the frontpage component as the home page. However, any content or component or other link can be used as the “home” page.
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Depending on the editor, this problem may occur when trying to edit the html, insert tables or perform a similar function that requires javascript.
Most likely the problem with the livesite.
You look in your site configuration (General Configuration, select the Server tab) you will see that the livesite is given. Usually it is either www.mydomain.com or mydomain.com.
When you log into your site, you must log in from the exact livesite. if you don’t the javascript in your editor will not work.
One way to deal with this is to put a redirect from, for example, mydomain.com to www.mydomain.com so that you and your users always login from the correct url. You can do this with .htaccess.
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From the backend of your joomla site (adminsitration) select Installers and then the type of extension (module, component, mambot/plugin, site template, administrative template, language
Sometimes you cannot use the automated installer. For example, very large extensions may exceed the maximum upload size allowed by your host.
In this case, unzip all of the files locally. Then transfer the files to a folder in the the install directory(for example administrator/components/com_installer/components) for the type of extension you are installing (using FTP). Then use the installer, but select “install from directory” indicating the correct folder name.
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Site templates divides the “pages” displayed on a site into a series of positions, each with a different name.
You can view the location of positions in your default template from the administrator
go to Site =>Preview=>Inline with Positions.
You can annotate your positions through the administrator (backend).
Go to Site=>Template
Manage=>Module Positions.
You can add or remove positions by modifying your template html.
You assign a module to a position using the module manager.
Modules=>Site Modules
On the left side of the page, on the third line, there is a drop down menu that lets you select the position.
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The basic structure is: Sections include Categories. Categories include content items.
Section A
Category A1
content items
Category A2
content items
Category A3
content items
Section B
Category B1
content items
Category B2
content items
Category B3
content items
Section C
Category C1
content items
Category C2
content items
Category C3
content items
The content items are what you would think of as web pages in a traditional html site.
Both section and category “pages” can be created to serve (more or less) as the home pages for the categories and sections, respectively.
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Frontpage is a component that is part of the core of Joomla!, like the front page of a newspaper, it shows (usually) multiple pieces of content arranged in some way.
When you install Joomla! the front page component is by default set as the homepage of your site (that is it is the first link on your Main Menu) but front page does not have to be your “home” page.
What exactly appears on the front page and how it is laid out is controlled in two ways. First, if you open the menu link in your menu manager in the backend there are numerous parameters that control the number of items shown, the number of columns etc.
To control which items are shown you must also indicate that an item should be placed on the front page by editing the parameters for the content item. In the backend this will be indicated by a check mark in the front page column of the list of content items.
In addition, you can use the front page manager (in the content menu of the backend) to control the publication dates and other variables for content items that are on the front page.
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The simple answer is that you get the URL for the page you want to link to. Then you make a link using whatever editor you are using or with html if you have no WYSIWYG.
The more complicated answer is that some editors have fancier links managers. For example with the JCE editor you can add the advanced linking plugin and it will give you nice lists of static and other content types to pick from.
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Newsflash is a module that displays content from specific sections and/or categories.
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No, content items cannot be assigned to multiple categories or sections.
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An example is as follows; You are currently reading a content item “New Page”. This content item is a member of the “Pages ” category. In the turn the pages category is a member of the “Books” section. In this case the breadcrumb for that page would look like: “Home >> Books >> Pages >> New Page”.
If you wish to eliminate the pathway entirely, edit your template html (index) file. Usually it will look like this:
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Content elements or applications that are usually displayed in the center of the main content area of a template. This depends on the design of the template in use.
Components are core elements of Joomla!’s functionality. These core elements include Content, Banners, Contact, News Feeds, Polls and Web Links.
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Modules extend the capabilities of Joomla! giving the software new functionality. Modules are small content items that can be displayed anywhere that your template allows it to be displayed by assigning them to positions and pages through the module manager in the administrative interface.
Modules are installed in the Admin Section. Joomla! modules may include: Main Menu, Top menu, Template Chooser, Polls, Newsflash, Hit Counter, etc..
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In Joomla 1.5 mambots will be renamed plugins.
Plugins: The new name for mambots. In addition, some 3rd party components, modules and mambots themselves have plugins. is a small, task-oriented function that intercepts content before it is displayed and manipulates it in some way.
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To make a menu link that does not connect to anything (is not clickable) use the link type Separator/Placeholder.
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