SY0-101 Security+ Certification Exam

Demo Question 11.

Answer: C

Explanation: The X.500 standard was implemented by the International Telecommunications Union (ITU), an international standards group, for directory services in the late 1980s. The X.500 directory structure was the basis for later models of directory structure, such as LDAP. The major problem in the industry in implementing a full-blown X.500 structure revolved around the complexity of the implementation. Novell was one of the first manufacturers to implement X.500 in its NetWare NDS product. Incorrect answers: A. LDAP Lightweight Directory Access Protocols (LDAP) is a standardized directory access protocol that allows queries to be made of directories (specifically, a pared down X.500-based directory). If a directory service supports LDAP, you can query that directory with an LDAP client, but it is the protocol. LDAP is growing in popularity and is being used extensively in online white and yellow pages. B. Active Directory Microsoft implemented a directory service called Active Directory (AD. with Windows 2000. For Microsoft products, AD is the backbone for all security, access, and network implementations from here on out. AD allows full control of resources by administrators. It is a proprietary directory service that provides services for other directory services, such as LDAP. AD functions are managed by one or more servers. These servers are connected in a tree structure that allows information to be shared or controlled through the entire AD structure. D. eDirectory is the backbone for Novell networks. eDirectory stores information on all system resources, users, and any other relevant information about systems attached to a NetWare server. eDirectory is an upgrade and replacement for NDS, and it has gained wide acceptance in the community. Reference: Mike Pastore and Emmett Dulaney, Security+ Study Guide, 2nd Edition, Sybex, Alameda, 2004, p. 243.