Windows Server 2008 Active Directory Configuration - Chapter 03

Front 1

asynchronous replication

Back 1

Each replication transaction does not need to complete before another can start because the transaction can be stored until the destination server is available.

Front 2

bridgehead server

Back 2

The server at each site that acts as a gatekeeper in managing site-to-site replication. This allows intersite replication to update only one domain controller within a site. After a xxxxxxxx is updated, it updates the remainder of its domain controller partners with the newly replicated information.

Front 3

change notification

Back 3

Method used by domain controllers to inform one another of when changes need to be replicated. Each domain controller will hold a change for 45 seconds before forwarding it, after which it will transmit the change to each of its replication partners in 3 second intervals.

Front 4

compressed

Back 4

To reduce the size of transmitted data to decrease the use of network bandwidth.

Front 5

connection objects

Back 5

The link, created by the Knowledge Consistency Checker, between domain controllers that replicate with one another in a site.

Front 6

convergence

Back 6

The amount of time required for replication so that all domain controllers in the environment contain the most up-to-date information.

Front 7

cost

Back 7

Value assigned to a site link object to define the push that relication will take. If more than one path can be used to replicate information, cost assignments will determine which path is chosen first. A lower-numbered cost value.

Front 8

dcdiag

Back 8

A command-line tool used for monitoring Active Directory.

Front 9

dual counter-rotating ring

Back 9

Created by the Knowledge Consistency Checker for the replication path. If one domain controller in the ring fails, traffic is routed in the opposite direction to allow replication to continue.

Front 10

frequency

Back 10

A value assigned to a site link that determines how often information will be replicated over the site link.

Front 11

CIDR

Back 11

Classless Inter-Domain Routing

Hint 11

Form of notation that shows the number of bits being used for the subnet mask. For example, for an IP address of 192.168.64.0 with a mask of 255.255.255.0, the CIDR representation would be 192.168.64.0/24.

Front 12

ISTG

Back 12

Intersite Topology Generator

Hint 12

A process that selects a bridgehead server and maps the topology to be used for intersite replication.

Front 13

LVR

Back 13

linked-value replication

Hint 13

An improvement to replication that is available for use after the forest functional level has been raised to Windows Server 2003 or higher, enabling a single membership change to a group to trigger the replication of only this change to each member in the list, rather than the entire membership list.

Front 14

RPC over IP

Back 14

Remote Procedure Calls over Internet Protocol

Hint 14

Default protocol used for all replication traffic.

Front 15

SMTP

Back 15

Simple Mail Transport Protocol

Hint 15

Transport protocol used for intersite replication when a direct or reliable IP connection is unavailable.

Front 16

USN

Back 16

update sequence number

Hint 16

A local value, maintained by each domain controller, that tracks the changes that are made at each DC, thus tracking which updates should be replicated to other domain controllers.

Front 17

intrasite replication

Back 17

The process of replicating Active Directory information between domain controllers within a site.

Front 18

intersite replication

Back 18

The process of replicating Active Directory information from one site to another.

Front 19

preferred bridgehead servers

Back 19

The administrator's list of servers to be used as bridgehead servers. A bridgehead server is the server at each site that acts as a gatekeeper in managing site-to-site replication.

Front 20

repadmin

Back 20

A command-line tool that can check replication sonsistency between replication partners, monitor replication status, display replication metadata, and force replication events and Knowledge Consistency Check (KCC) recalculation.

Front 21

replication partners

Back 21

Servers that inform each other when updates are necessary. The Knowledge Consistency Checker (KCC) selects one or more replication partners for each domain controller in the site.

Front 22

replication topology

Back 22

Defines the path used by replicatin traffic.

Front 23

schedule

Back 23

Determines the time when a site link object is available to replicate information.

Front 24

site link bridge

Back 24

Defines a chain of site links by which domain controllers from different sites can communicate.

Front 25

site links

Back 25

A connection between two or more sites that enables intersite replication

Front 26

timestamp

Back 26

An attribute set on an object to indicate when it was last updated. Timestamps are used to assist in the resolution of conflicts during replication. If a change was made to an attribute of the same object, the timestamp can help determine which object is the most up-to-date.

Front 27

transitive

Back 27

Default characteristic of site links that use the same transport protocol. A domain controller inany site can connect to a domain controller in any other site by navigating a chain of site links.

Front 28

urgent replication

Back 28

The change will be placed at the "beginning of the line" and it will be applied before any other changes that are waiting to be replicated.

Front 29

version ID

Back 29

A value associated with each Active Directory attribute that keeps track of how many times that attribute has been changed.

Front 30

well-connected

Back 30

The network infrastructure between sites defined by fast and reliable IP subnets.