Section: Access Control
Explanation
Explanation/Reference:
The Key Distribution Center (KDC) holds all users' and services' cryptographic keys. It provides authentication services, as well as key distribution functionality. The Authentication Service is the part of the KDC that authenticates a principal. The Key Distribution Service and Key Granting Service are distracters and are not defined Kerberos components.
Source: WALLHOFF, John, CISSP Summary 2002, April 2002, CBK#1 Access Control System & Methodology (page 3)

Explanation/Reference:
This is not a correct notation for an IPv6 address because the the "::" can only appear once in an address.
The use of "::" is a shortcut notation that indicates one or more groups of 16 bits of zeros.
::1 is the loopback address using the special notation
Reference: IP Version 6 Addressing Architecture
http://tools.ietf.org/html/rfc4291#section-2.1

Section: Security Operation Adimnistration
Explanation/Reference:
Baselines provide the minimum level of security necessary throughout the organization.
Standards specify how hardware and software products should be used throughout the organization.
Procedures are detailed step-by-step instruction on how to achieve certain tasks.
Guidelines are recommendation actions and operational guides to personnel when a specific standard does not apply.
Source: HARRIS, Shon, All-In-One CISSP Certification Exam Guide, McGraw-Hill/Osborne, 2002, chapter 3:
Security Management Practices (page 94).

Section: Security Operation Adimnistration
Explanation/Reference:
Source: TIPTON, Harold F. & KRAUSE, MICKI, Information Security Management Handbook, 4th Edition, Volume 2, Auerbach.

A WAN is basically everything outside of a LAN.
Source: KRUTZ, Ronald L. & VINES, Russel D., The CISSP Prep Guide: Mastering the
Ten Domains of Computer Security, 2001, John Wiley & Sons, Page 99.