CLOUD COMPUTING

Detailed explanation-1: -A network includes a ticket-granting ticket server used for authentication. Which authentication service does this network use? Answer is D. Kerberos uses a ticket-granting ticket (TGT) server, which creates tickets for authentication.

Detailed explanation-2: -In Kerberos authentication, a Ticket Granting Ticket (TGT) is a user authentication token issued by the Key Distribution Center (KDC) that is used to request access tokens from the Ticket Granting Service (TGS) for specific resources/systems joined to the domain.

Detailed explanation-3: -Kerberos is a computer network security protocol that authenticates service requests between two or more trusted hosts across an untrusted network, like the internet. It uses secret-key cryptography and a trusted third party for authenticating client-server applications and verifying users’ identities.

Detailed explanation-4: -To access a specific service on a specific server, the user must obtain two credentials. The first credential is for the ticket-granting ticket (known as the TGT).

Detailed explanation-5: -Kerberos. is an authentication protocol that uses a client/server model. is an SSO system that uses symmetric key cryptography. provides confidentiality and integrity. the authenticator contains the client ID and a timestamp. the ticket is valid for a certain time, the timestamp ensures the validity of the request.