Windows Sysadmin Interview Question

1.      What is Active Directory schema?

2.      What are the domain functional level in Windows Server 2003?

3.      What are the forest functional level in Windows Server 2003?

4.      What is global catalogue server?

5.      How we can raise domain functional & forest functional level in Windows Server 2003?

6.      Which is the default protocol used in directory services?

7.      What is IPv6?

8.      What is the default domain functional level in Windows Server 2003?

9.      What are the physical & logical components of ADS

10.  In which domain functional level, we can rename domain name?

11.  What is multimaster replication?

The Active Directory schema contains formal definitions of every object class that can be created in an Active Directory forest it also contains formal definitions of every attribute that can exist in an Active Directory object. Active Directory stores and retrieves information from a wide variety of applications and services. So that it can store and replicate data from a potentially infinite variety of sources, Active Directory standardizes how data is stored in the directory. By standardizing how data is stored, the directory service can retrieve, update, and replicate data while ensuring that the integrity of the data is maintained.

Schema master is a set of rules which is used to define the structure of active directory. It contains definitions of all the objects which are stored in AD. It maintains information and detail information of objects.

.What is global catalog server?

A global catalogue server is a domain controller it is a master searchable database that contains information about every object in every
domain in a forest. The global catalogue contains a complete replica of all
objects in Active Directory for its host domain, and contains a partial replica
of all objects in Active Directory for every other domain in the forest.
It have two important functions:
i)Provides group membership information during logon and authentication
ii)Helps users locate resources in Active Directory

1.      The two technologies in DFS are as follows:

DFS Replication. New state-based, multimaster replication engine that is optimized for WAN environments. DFS Replication supports replication scheduling, bandwidth throttling, and a new byte-level compression algorithm known as remote differential compression (RDC).

DFS Namespaces. Technology that helps administrators group shared folders located on different servers and present them to users as a virtual tree of folders known as a namespace. DFS Namespaces was formerly known as Distributed File System in Windows 2000 Server and Windows Server 2003.

1.      1. DNS(Domain Name Service):
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It’s mainly used to resolve from host name(FQDN-Fully Qualified Domain Name) to IP address and IP address to host name.DNS mainly used in Internet. DNS divide in form of hierarchical.

2. DHCP(Dynamic Host Configuration Protocol):
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DHCP use for provide IP address dynamically to client machine. If that client not able to find DHCP server then client machine will go for APIPA(We have range for APIPA which is 169.254.0.1-169.254.255.254).

3. HUB and SWITCH:
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Switch is expensive than hub. If more then one user try to send packet at a time collision will occure but in switch we can send. Switch is full duplex. Maximum bandwidth is 100 Mhz and that bandwidth is shared by all of the PC’s connected to the hub. Data can be sent in both directions simultaneously, the maximum available bandwidth is 200 Mbps, 100 Mbps each way, and there are no other PC’s with which the bandwidth must be shared.