Joe, a network administrator, is able to manage the backup software console by using his network login credentials. Which of the following authentication services is the MOST likely using?
D. Two-factor authentication
Correct Answer: B
Section: Access Control and Identity Management
Joe is able to manage the backup system by logging into the network. This is an example of Single Sign-on.
A common usage of LDAP is to provide a “single sign on” where one password for a user is shared between many services, such as applying a company login code to web pages (so
that staff log in only once to company computers, and then are automatically logged into the company intranet).
The Lightweight Directory Access Protocol is an open, vendor-neutral, industry standard application protocol for accessing and maintaining distributed directory information services
over an Internet Protocol (IP) network. Directory services play an important role in developing intranet and Internet applications by allowing the sharing of information about users,
systems, networks, services, and applications throughout the network. As examples, directory services may provide any organized set of records, often with a hierarchical structure,
such as a corporate email directory. Similarly, a telephone directory is a list of subscribers with an address and a phone number.
A: Security Assertion Markup Language (SAML) is an XML-based, open-standard data format for exchanging authentication and authorization data between parties, in particular,
between an identity provider and a service provider. SAML ‘could’ be used here. However, this question asks for the MOST likely authentication service. Single Sign-on using LDAP is
much more likely. Therefore, this answer is incorrect.
C: iSCSI is SCSI over TCP/IP and is a way of connecting storage devices over a network using TCP/IP. It is not used for user authentication. Therefore, this answer is incorrect.
D: Two-factor authentication is authenticating by using two methods such as a fingerprint and a password or smart card and a pin. It is not what is enabling Joe to manage the backup
device by using his network login. Therefore, this answer is incorrect.