WordPress installation - Practice Problems & Coding Challenges

Challenge - 5 Problems

🧠 Conceptual

intermediate

Understanding WordPress Database Setup

During WordPress installation, what is the primary purpose of the wp-config.php file?

A It holds the content of all posts and pages.

B It contains the theme and plugin files for the website.

C It stores database connection details like database name, username, and password.

D It manages user roles and permissions within WordPress.

💡 Hint

Think about what WordPress needs to connect to the database.

The wp-config.php file contains the database connection details such as the database name, username, password, and host. This allows WordPress to communicate with the database to store and retrieve site data.

❓ component_behavior

intermediate

WordPress Installation Behavior

What happens immediately after you run the WordPress installation script by accessing the site URL in a browser?

A WordPress checks the database connection and creates necessary tables if they don't exist.

B WordPress automatically installs all plugins and themes.

C WordPress sends an email to the site admin with login credentials.

D WordPress deletes all existing files in the installation folder.

💡 Hint

Think about what WordPress needs to do to prepare the site data.

When you run the installation script, WordPress first verifies it can connect to the database. If successful, it creates the required tables to store site content and settings.

📝 Syntax

advanced

Correct wp-config.php Database Settings

Which wp-config.php snippet correctly sets the database host to 'localhost' and database charset to 'utf8mb4'?

A

define('DB_HOST', localhost);
define('DB_CHARSET', utf8mb4);

B

define('DB_HOST', 'localhost');
define('DB_CHARSET', 'utf8mb4');

C

define(DB_HOST, 'localhost');
define(DB_CHARSET, 'utf8mb4');

D

define('DB_HOST', 'localhost');
define('DB_CHARSET', 'utf8');

💡 Hint

Remember that PHP constants require quotes around string values.

In PHP, define requires the constant name and string value to be in quotes. Option B correctly uses quotes and sets the charset to the recommended 'utf8mb4'.

🔧 Debug

advanced

Troubleshooting WordPress Installation Error

You see the error 'Error establishing a database connection' after starting WordPress installation. Which of these is the most likely cause?

A The WordPress theme folder is empty.

B Missing index.php file in the WordPress root folder.

C The web server is running on port 8080 instead of 80.

D Incorrect database username or password in wp-config.php.

💡 Hint

Think about what WordPress needs to connect to the database.

This error usually means WordPress cannot connect to the database because the username or password in wp-config.php is wrong or the database server is unreachable.

❓ state_output

expert

WordPress Installation Final Step Output

After successfully completing the WordPress installation form (site title, admin user, password), what is the exact message shown on the screen?

A Success! WordPress has been installed. You can now log in.

B Installation complete. Please restart your web server.

C Database tables created. Installation will continue on next page.

D Error: Admin user already exists.

💡 Hint

Think about the confirmation message WordPress shows after setup.

WordPress displays a success message confirming installation and provides a link to log in to the admin dashboard.