WordPress Interview Questions and Answers

A tag is one of the pre-defined taxonomy in WordPress. You can add tags to posts along with categories in WordPress. Tags are smaller in scope and focused on specific topics.

To change the default length of the excerpt in WordPress, we have to insert the below-mentioned syntax to the functions.php file and edit the amount of the words that we desire to be displayed in our excerpts.

add_filter( 'excerpt_length', function($length) {
    return X;
} );

Here above X is the number of words to be displayed.

In WordPress categories are hierarchical which means terms can have a relationship with each other like child and parent.
Example: You could have a Category called India, and under India, you could have categories called Delhi, Haryana, and U.P. Categories means for broad grouping of posts.

But Tags are NOT hierarchical which means no relationship between them. Tags means to describe specific details posts.

We can make many types of user types of role.

• Administrator Role
• Author Role
• Editor Role
• Subscriber Role
• Contributor Role

The quickest way to install plugins on WordPress is through plugin search.

Here are the steps:

• On the admin page of your site, click "Plugins," and "Add New."
• Search for plugins by typing the name or functionality.
• You may see a couple of listings
• Just select the plugin that you want and click ‘Install Now.’
• WordPress will download and install the selected plugin.

There are two ways to update your WordPress - one-click update and manual update.

1. One-click update

All versions of WordPress from 2.7 onwards have this feature. You can update by going to the Dashboard and clicking "Updates" screen. On "Update WordPress," click "Update Now" for initiating the process.

2. Manual Update

• Replace your WordPress files
• Download and unpack the latest zip file.
• Deactivate plugins and delete old wp-includes and wp-admin directories on your host.
• Using FTP, upload new wp-includes and wp-admin directories.
• Upload individual files from a new wp-content folder, and overwrite existing files. Do NOT delete existing wp-content folder or files and folders in the current wp-content directory.
• Next, upload new files from the root directory of the latest version to your current directory.

Here are the steps:

• In login dashboard, click "Appearance" "Theme" and "Add New."
• On the top of your screen, click “Upload.” Click “Browse,” and select.ZIP file for a downloaded extension.

Custom fields are metadata used to include additional information about a post or page, like author name, title, date and time, etc. By default, the custom fields option in WordPress is hidden on the "edit" screen. If you want to see it, click ‘Screen Options’ at the top and enable "custom fields."

wp-config.php is the most important file in WordPress installation. It links the database and files on your WordPress site together. Located in the root of WordPress file directory, wp-config.php contains configuration details, including database connection information.

Taxonomies in WordPress are used to group posts and post types together. Custom taxonomies can help developers create groups and bring them under one head.

There are 4 in-built taxonomies in WordPress- Category, Tag, Link Category, and Post Formats.