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?
A.
SAML
B.
LDAP
C.
iSCSI
D.
Two-factor authentication
Explanation:
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.
Incorrect Answers:
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.http://en.wikipedia.org/wiki/Lightweight_Directory_Access_Protocol