Question:

a) Authentication relies on standards and protocols that are used to confirm the identity of a user or object. Windows Server 2003 supports several types of network authentication. Two types of these network authentications are Lightweight Directory Access Protocol/Secure Sockets Layer (LDAP/SSL) and Public Key Infrastructure (PKI). Describe in details how these two types of network authentications work.

b) Explain the purpose of the "Access Token" in Security Principals and Security Identifiers.

c) Using the Active Directory Domains and Trusts console, it is possible to create a variety of different types of trusts between domains and forests. Differentiate between the "Realm Trust" and "External Trust". Illustrate your answer using appropriate diagrams.

d) Share permissions have significant limitations. Name and describe any four of these limitations.