> How many types of sites are there in SCCM 2012 ?
1. CAS (Central administration site):- The central administration site coordinates inter site data
replication across the hierarchy by using Configuration Manager Database replication. It also enables
the administration of hierarchy-wide configurations for client agents, discovery, and other operations.
Use this site for all administration and reporting for the hierarchy.
2. Primary Site: Manages clients in well-connected networks.
3. Secondary site: Controls content distribution for clients in remote locations across links that have
limited network bandwidth.
> What is Site server, Site system & Site system Roles ?
Site Server: The site server is the computer on which you install Configuration Manager 2007 or 2012, and it hosts services required for Configuration Manager.
Site System: A site system is any computer running a supported version of Microsoft Windows or a shared folder that hosts one or more site system roles.
Site System Role: A site system role is a function required to be able to use Configuration Manager 2007 or to use a feature of Configuration Manager.
> What is Difference between Native mode and Mixed mode ?
Native Mode: More secure solution than mixed mode because it provides better authentication,
encryption, and signing using standard industry security protocols. Supports Internet-based client
management and Can integrate with existing PKI deployment.
Mixed Mode: Does not require a PKI deployment, so it has no external dependencies. Supports clients running SMS 2003.
Supports WINS for the means by which clients locate their default management point if Active Directory
and DNS cannot be used.
> What are the Discovery Methods & DDR available in SCCM 2007 & 2012 ?
Discovery Data Records:-
When Discovery runs, it creates discovery data records (DDRs). The information contained in a DDR
varies depending upon the discovered resource. For example, it can include the NetBIOS name of a
computer, the IP address and IP subnet of a computer or device, and the computer operating system name.
The approximate size of an individual DDR is 1 KB. Discovery Methods:-
1. Active Directory System Discovery – Discovers computers from the specified locations in Active
Directory Domain Services.
2. Active Directory User Discovery - Discovers user accounts from the specified locations in Active
Directory Domain Services.
3. Active Directory Security Group Discovery - Discovers security groups, including local, global, and
universal groups from the specified locations in Active Directory Domain Services.
4. Active Directory System Group Discovery – Discovers additional information about previously
discovered computers from the specified locations in Active Directory Domain Services. This information
includes the OU and group membership of the computer. Active Directory System Group Discovery does not
discover information about new resources that did not previously exist in the Configuration Manager
5. Heartbeat Discovery – Used by active Configuration Manager clients to update their discovery records
in the database. Because it is initiated by an active client, Heartbeat Discovery does not discover new
6. Network Discovery – Searches your network infrastructure for network devices that have an IP
address. This allows you to discover devices that might not be found by other discovery methods,
including printers, routers, and bridges.
7. Forest Discovery – SCCM 2012 has a new discovery method which discovers other forest in the network.
> What are the Boundaries in SCCM ?
Configuration Manager Boundaries are defined in the Configuration Manager console and are defined by
IP subnet, Active Directory site name, IPv6 Prefix, IP ranges. Boundaries are used to assign clients to a specific Configuration Manager 2007 site and should be
unique to each site. When defining site boundaries for sites, ensure that you do not define the same
boundary for more than one Configuration Manager 2007 site, doing so leads to a situation called
overlapping site boundaries.