Which of the following two components does Kerberos Key Distribution Center (KDC) consist of?

Which of the following two components does Kerberos Key Distribution Center (KDC) consist of?
Each correct answer represents a complete solution. Choose two.

A.
Data service

B.
Ticket-granting service

C.
Account service

D.
Authentication service

Explanation:
Kerberos Key Distribution Center (KDC) consists of the following two components:
Authentication service: This service issues ticket-granting tickets (TGTs) that are good for admission
to the ticket-granting service
(TGS). Before network clients can get tickets for services, they must obtain a TGT from the
authentication service.
Ticket-granting service: This service issues tickets that are used for admission to other services in its
own domain or to access the
ticket-granting service of a trusted domain.