3. 3
Roles of Computers in a Network
Mail Server
Database Server
Database
Fax Server
File and Print Server Directory Services
Server
Client Computer
File and Print Server
Database Server
Mail Server
Fax Server
Mail Server
Database Server
Database
Fax Server
File and Print Server
33. 33
Open Systems Interconnection (OSI) Reference Model
Application Layer
Presentation Layer
Session Layer
Transport Layer
Network Layer
Data Link Layer
Physical Layer
38. 38
Addressing Guidelines
The Host ID Cannot Be All Zeros
The Host ID Cannot Be All 255s
The First Number in the Network ID Cannot Be 127
The Host ID Must Be Unique to the Local Network ID
43. 43
Uniform Resource Locator (URL)
URL
(http://example.microsoft.com/tutorial/
default.html)
– Protocol used (http://)
– DNS address (example.microsoft.com)
– Path on the server (/tutorial/default.html)
http://example.microsoft.com/tutorial/default.html
46. 46
Features of a Domain
Single User AccountSingle Logon
Centralized Management Scalability
47. 47
Benefits of a Domain
Organized
Objects
Paris
RepairSales
User1 Computer1 Printer1User2
Easy Location of
Information
Streamlined Access Delegated Authority