S | MCSA[s]MCSE

scalable: The ability of a system to grow to handle greater traffic, volume, usage, etc.
Schedule+ Free Busy public folder: A system folder that contains calendaring and synchronization information for Exchange users.
schema: The set of rules defining a directory ‚ s hierarchy, objects, attributes, etc.
Schema master: An operations master role server that controls all updates and changes that are made to the schema.
secret key: A security key that can be used to encrypt data and that is known only by the sender and the recipients whom the sender informs.
Secure/Multipurpose Internet Mail Extensions (S/MIME): An Internet protocol that enables mail messages to be digitally signed, encrypted, and decrypted.
Secure Sockets Layer (SSL): An Internet protocol that provides secure and authenticated TCP/IP connections. A client and server establish a ‚“handshake ‚½ whereby they agree on a level of security they will use, such as authentication requirements and encryption. SSL can be used to encrypt sensitive data for transmission.
security group: A group defined in Active Directory that can be assigned permissions. All members of the group gain the permissions given to the group.
Server License: Provides the legal right to install and operate Microsoft Exchange Server 2003 (or another server product) on a single-server machine.
service provider: A MAPI program that provides messaging-oriented services to a client. There are three main types of service providers: address book, message store, and message transport.
Service Transport Stack: See Message Transfer Agent (MTA) Service Transport Stack.
shared-file messaging system: A messaging system in which active clients deposit messages and poll for new messages in shared folders on a passive server.
signing: The process of placing a digital signature on a message.
simple display name: An alternate name for the mailbox that appears when, for some reason, the full display name cannot.
Simple Mail Transfer Protocol (SMTP): The Internet protocol used to transfer mail messages. It is now the default transport protocol for Exchange 2000 Server.
Simple Network Management Protocol (SNMP): Internet protocol used to manage heterogeneous computers, operating systems, and applications. Because of its wide acceptance and applicability, SNMP is well suited for enterprise-wide management.
single-instance storage: Storing only one copy. A message that is sent to multiple recipients homed in the same storage group has only one copy (i.e., instance) stored on that server. Each recipient is given a pointer to that copy of the message.
single-node cluster: A cluster model useful for testing and application development that has only one cluster node that uses either local storage or an external storage device.
single-quorum cluster: The standard clustering model that comes to mind when most people think of clustering. In the single-quorum model, all nodes are attached to the external shared storage device. All cluster configuration data is kept on this storage device; thus, all cluster nodes have access to the quorum data.
site: A logical grouping of servers in previous versions of Exchange (prior to Exchange 2000 Server) that are connected by a full mesh (every server is directly connected to every other server) and communicate using high-bandwidth RPC. All servers in a site can authenticate one another either because they are homed in the same Windows domain or because of trust relationships configured between separate Windows domains. A site is also a group of Windows servers that are connected with full-time , reliable connections.
Site Connector: A connector used to connect Exchange 5. x sites. The Site Connector has been replaced by the Routing Group Connector (RGC) in Exchange Server 2003.
Site Consistency Checker (SCC): An updated version of the Knowledge Consistency Checker from Exchange 5. x . The SCC ensures that knowledge consistency is maintained for sites and administrative groups when operating in mixed mode.
Site Replication Service (SRS): Runs on an Exchange Server 2003 and simulates an Exchange 5. x system from the viewpoint of the Exchange 5. x servers in a site. SRS also provides a pathway for replicating configuration information between Active Directory and Exchange 5. x servers.
Site Replication Service (SRS) database: Contains information maintained by the Site Replication Service (SRS).
smart host: An SMTP host designated to receive all outgoing SMTP mail. The smart host then forwards the mail to the relevant destination.
S/MIME: See Secure/Multipurpose Internet Mail Extensions (S/MIME).
SMTP: See Simple Mail Transfer Protocol (SMTP).
SMTP Connector: Using SMTP as its transport mechanism, the SMTP Connector can be used to connect routing groups to one another and to connect Exchange to a foreign SMTP system.
SMTP virtual server: A logical representation of the SMTP protocol on a physical server.
SNMP: See Simple Network Management Protocol (SNMP).
spooling: The process used by SMTP to temporarily store messages that cannot be delivered immediately.
stand-alone CA: Used to issue certificates to users who are outside the enterprise and who do not require access to the Active Directory. See also Certificate Authority (CA), Enterprise CA.
Standard Edition: The basic edition of Exchange Server 2003 that includes support for only basic features. The Standard Edition is limited to having one storage group, and stores are limited to only 16 GB in size .
standard permissions: Permissions that are defined in a standard installation of Windows Server 2003. Extended permissions are created when Exchange Server 2003 is installed.
storage group: A collection of stores (up to four) that all share a common set of transaction logs.
storage limit: A limit placed on the amount of data that can be stored in a mailbox or public folder. Limits can be assigned at the store level and at the folder or mailbox level.
store: There are two types of stores in Exchange 2000 Server: public stores that hold public folders meant to be accessed by groups of users and private stores that hold user mailboxes. Each store is composed of two databases: a rich-text database and a streaming media database.
Store.exe: The actual process that governs the use of stores on an Exchange server. Often referred to as the Information Store service.
store-and-forward: A delivery method that does not require the sender and recipient to have simultaneous interaction. Instead, when a message is sent, it is transferred to the next appropriate location in the network, which temporarily stores it, makes a routing decision, and forwards the message to the next appropriate network location. This process occurs until the message is ultimately delivered to the intended recipient or an error condition causes the message to be returned to the sender.
streaming media (STM) file: One of two files that compose every Exchange store, the streaming media file is used to hold content that does not need to be translated by Exchange Server before it is presented to the client.
subordinate CA: A CA found underneath the root CA in the CA hierarchy and maybe even under other subordinate CAs. See also Certificate Authority (CA), root CA.
subsystem: A software component that, when loaded, extends the operating system by providing additional services. The MAPI program, MAPI32.DLL , is an example of a subsystem. MAPI32.DLL loads on top of the Windows 98 or Windows XP operating system and provides messaging services.
system folders: Special public folders that are hidden by default and are only accessible through System Manager. System folders contain items that facilitate the capabilities of many Exchange clients, such as collaborative scheduling in Outlook.
System Manager: See Exchange System Manager.
System Monitor: See Performance snap-in.
system policies: See policy.
system state backup: A form of backup that includes the Windows Registry, the IIS metabase, and the Active Directory (if run on a domain controller).