Challenge your understanding of key WordPress concepts with this up-to-date quiz designed for 2025 interviews. Evaluate your skills with practical, scenario-based questions covering themes, plugins, security, and core functionalities.
Which template file will WordPress use first when displaying a single post if 'single-post.php' and 'single.php' both exist in the active theme?
Explanation: WordPress uses the template hierarchy to determine which file to display, prioritizing specificity. For a single post, 'single-post.php' is more specific than 'single.php' and will be chosen first. 'single.php' acts as a generic fallback, while 'index.php' is the ultimate fallback if neither specific file exists. 'home.php' is not used for single post displays; it serves the blog home.
After deactivating a caching plugin, what is a typical consequence a WordPress website owner might notice immediately?
Explanation: Disabling a caching plugin often results in slower page loads because cached resources are no longer efficiently served. User passwords are not directly impacted by cache plugins, so that is incorrect. The site does not go offline solely due to deactivating a plugin, and cache plugins do not affect the accessibility of the admin dashboard directly. Only loading speed is directly impacted.
Which default WordPress database table stores information about comments made on posts and pages?
Explanation: The 'wp_comments' table is specifically designated for storing comments on posts and pages. 'wp_postmeta' contains metadata related to posts but not the comments themselves. 'wp_users' manages user data, whereas 'wp_terms' handles taxonomy terms like categories and tags. Only 'wp_comments' stores actual comment content and details.
For enhanced security, what should an administrator do first after installing a new WordPress site?
Explanation: Changing the default admin username is a basic but effective security measure, reducing vulnerability to brute-force attacks. Installing multiple themes does not improve security and may even increase risks if unused. Uploading large media files is unrelated to security, and setting permalinks to numeric values impacts SEO and usability, not protection. Only adjusting the username addresses a real security concern.
Which function is commonly used to register a custom post type in WordPress for managing portfolios or testimonials?
Explanation: The 'register_post_type' function allows developers to create new content types such as portfolios or testimonials. 'add_theme_support' is for enabling theme features, not post types. 'create_post_object' and 'wp_new_content' are not valid WordPress functions for this task. Only 'register_post_type' is specifically intended for registering custom post types.