6 uses of DRUPAL_BOOTSTRAP_CONFIGURATION

drupal_bootstrap in drupal/core/includes/bootstrap.inc
Ensures Drupal is bootstrapped to the specified phase.
http.php in drupal/core/modules/system/tests/http.php
Fake an HTTP request, for use during testing.
https.php in drupal/core/modules/system/tests/https.php
Fake an HTTPS request, for use during testing.
index.php in drupal/index.php
The PHP page that serves all page requests on a Drupal installation.
install_begin_request in drupal/core/includes/install.core.inc
Begins an installation request, modifying the installation state as needed.
update_prepare_d8_bootstrap in drupal/core/includes/update.inc
Performs extra steps required to bootstrap when using a Drupal 7 database.