What physical characteristic does a retinal scan biometric device measure?

Which access control model provides upper and lower bounds of access capabilities for a subject?

To control access by a subject (an active entity such as individual or process) to an object (a passive entity
such as a file) involves setting up:

Which access control model is BEST suited in an environment where a high security level is required and
where it is desired that only the administrator grants access control?

What can be defined as a table of subjects and objects indicating what actions individual subjects can take
upon individual objects?

What is the difference between Access Control Lists (ACLs) and Capability Tables?

What can be defined as a list of subjects along with their access rights that are authorized to access a specific
object?

Which of the following is NOT part of the Kerberos authentication protocol?

Which access model is most appropriate for companies with a high employee turnover?

Which access control model is also called Non-Discretionary Access Control (NDAC)?