To answer this question, you need to understand the concept of administrator authentication.
Option A) Equivalent to normal users - This option is incorrect because administrators typically have higher privileges and access to sensitive information or system settings. Therefore, their authentication requirements should be greater than those of normal users.
Option B) Less than those of normal users as all administrators are trustworthy - This option is incorrect because even though administrators are trusted individuals, it is still important to have strong authentication measures in place to prevent unauthorized access or misuse of administrative privileges.
Option C) No authentication is required for administrators - This option is incorrect because administrators should still go through some form of authentication to ensure the security of the system and its resources.
Option D) Greater than those of normal users - This option is correct because administrators should have stronger authentication requirements compared to normal users. This can include additional factors such as multi-factor authentication, stricter password policies, or even biometric authentication to ensure the security and integrity of the system.
The correct answer is Option D. This option is correct because administrators typically require greater authentication measures to protect sensitive information and maintain the security of the system.