单项选择题 Your company has a mix of employees and contractors. Contractor usernames always begin with"con-"; employee usernames never begin with "con-". You need to give employees access to allresources and give contractors access to a limited set of resources. Employee and contractor roles have been created with the appropriate access privileges, and the realm is set to merge settings for all assigned roles. Which role mapping ruleset would result in the correct access privileges being assigned?（）

单项选择题 What happens when Host Checker is configured to perform checks every "0" minutes? （）

单项选择题 Which additional configuration must be completed when setting up role restrictions using certificates? （）