Active Directory Page 11

>Where are the Windows NT Primary Domain Controller (PDC) and its Backup Domain Controller (BDC) in Server 2003?
The Active Directory replaces them. Now all domain controllers share a multimaster peer-to-peer read and write relationship that hosts copies of the Active Directory.

>What is Global Catalog?
The Global Catalog authenticates network user logons and fields inquiries about objects across a forest or tree. Every domain has at least one GC that is hosted on a domain controller. In Windows 2000, there was typically one GC on every site in order to prevent user logon failures across the network.

>How long does it take for security changes to be replicated among the domain controllers?
Security-related modifications are replicated within a site immediately. These changes include account and individual user lockout policies, changes to password policies, changes to computer account passwords, and modifications to the Local Security Authority (LSA).

>When should you create a forest?
Organizations that operate on radically different bases may require separate trees with distinct namespaces. Unique trade or brand names often give rise to separate DNS identities. Organizations merge or are acquired and naming continuity is desired. Organizations form partnerships and joint ventures. While access to common resources is desired, a separately defined tree can enforce more direct administrative and security restrictions.

>Describe the process of working with an external domain name ?
If it is not possible for you to configure your internal domain as a subdomain of your external domain, use a stand-alone internal domain. This way, your internal and external domain names are unrelated. For example, an organization that uses the domain name for their external namespace uses the name corp.internal for their internal namespace.

The advantage to this approach is that it provides you with a unique internal domain name. The disadvantage is that this configuration requires you to manage two separate namespaces. Also, using a stand-alone internal domain that is unrelated to your external domain might create confusion for users because the namespaces do not reflect a relationship between resources within and outside of your network.

In addition, you might have to register two DNS names with an Internet name authority if you want to make the internal domain publicly accessible.

>How do you view all the GCs in the forest?

C:\>repadmin /showreps

You can use Replmon.exe for the same purpose.
AD Sites and Services and nslookup gc._msdcs.

To find the in GC from the command line you can try using DSQUERY command.
dsquery server -isgc to find all the GC’s in the forest
you can try dsquery server -forest -isgc.

> What are the physical components of Active Directory?

Domain controllers and Sites. Domain controllers are physical computers which are running Windows Server operating system and Active Directory data base. Sites are a network segment based on geographical location and which contains multiple domain controllers in each site.

> What are the logical components of Active Directory?

Domains, Organizational Units, trees and forests are logical components of Active Directory.

> What are the Active Directory Partitions?

Active Directory database is divided into different partitions such as Schema partition, Domain partition, and Configuration partition. Apart from these partitions, we can create Application partition based on the requirement.

> What is group nesting?

Adding one group as a member of another group is called ‘group nesting’. This will help for easy administration and reduced replication traffic.

> What is the feature of Domain Local Group?

Domain local groups are mainly used for granting access to network resources.A Domain local group can contain accounts from any domain, global groups from any domain and universal groups from any domain. For example, if you want to grant permission to a printer located at Domain A, to 10 users from Domain B, then create a Global group in Domain B and add all 10 users into that Global group. Then, create a Domain local group at Domain A, and add Global group of Domain B to Domain local group of Domain A, then, add Domain local group of Domain A to the printer(of Domain A) security ACL.

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