Get the value of a configuration setting in Magento

Question

What is (are) the correct way(s) to get store configuration value for 'config_name_path' settings?

Accepted Answer

[php]
Mage::getStoreConfig('config_name_path');
[/php]

Answer

[php]
Mage::getConfig('config_name_path')->getValue();
[/php]

Answer

[php]
Mage::app()->getConfigValue('config_name_path');
[/php]

Answer

[php]
Mage::getModel('core/config')->loadByPath('config_name_path');
[/php]

Question from the Magento test