![[Contents]](a5f4558b.gif)
![[Back]](8016546c.gif)
![[<< Prev]](8f6f5240.gif)
![[Next >>]](e7ced9d2.gif)
Database Services
Database servers are the most common examples of application servers. Because database services enable applications to be designed in separate client and server components, such applications are frequently called client/server databases.
With a client/server database, the client and server applications are designed to take advantage of the specialized capabilities of client and database systems, as follows:
- The client application manages data input from the user, generation of screen displays, some of the reporting, and data-retrieval requests that are sent to the database server.
- The database server manages the database files; adds, deletes, and modifies records in the database; queries the database and generates the results required by the client; and transmits results back to the client. The database server can service requests for multiple clients more or less at the same time.
Database services relieve clients of most responsibilities for managing data. A modern database server is a sophisticated piece of software that can perform the following functions:
- Provide database security
- Optimize the performance of database operations
- Determine optimal locations for storing data without requiring clients to know where the data is located
- Service large numbers of clients by reducing the time any one client is accessing the database
- Distribute data across multiple database servers.
![[note.gif]](note.gif)
Microsoft SQL Server and Exchange are two examples of applications that run at the server but are able to perform tasks requested by clients. Because of the way in which these applications are designed, both of these require a “back-end,” or server, component and a “front-end,” or client, component.
Distributed databases are becoming increasingly popular. They enable portions of databases to be stored on separate server computers, which may be in different geographic locations. This technique, known as distributed data, looks like a single logical database to users, but places the data users need in the most accessible location. East Coast sales data, for example, might be located on a database server in Boston, whereas West Coast sales data is on a server in San Diego. Special database mechanisms must be in place to keep the data in the copies of the database synchronized.
More simply, databases can be replicated. Complete copies of the database can be stored in various locations, which provides a redundancy factor because disaster is unlikely to strike all copies at once. Additionally, database replication improves application response time over low-bandwidth connections because users can access the database on the LAN rather than over a comparatively slow WAN link.
As shown in Figure 1.10, the most popular strategies for replication databases are the following:
- Master driven updates. A single master server receives all updates and, in turn, updates all replicas.
- Locally driven updates. Any local server can receive an update and is responsible for distributing the change to other replicas.
|
MCSE
Boot
Camp
Call
: 800-519-
2267
MCSE
Boot Camp,
MCSE
Certification
boot
camp,
MCSE
Training
boot
camps,
MCSE
certification
boot
camp
training at
California and
Maryland
USA. Also
CCNA,
CCNP,
CISSP,
Red Hat
Linux
Certification
notes.
Vibrant
boot camp
offers MCSE,
CCNA,
CCNP Certification back to back
Vibrant
offers
MCSE
certification
training
boot camp
for $5400
all inclusive,
instructor
led at
California
and
Baltimore. |
Installing and Deploying Windows Server 2003, MCSE Boot Camp & MCSE Training
boot camp get MCSE Certification join MCSE Boot camps
System
Requirements, MCSE Boot Camp & MCSE Training boot camp get MCSE Certification
join MCSE Boot camps
Installing Windows Server 2003 from the CD-Rom, MCSE Boot Camp & MCSE Training
boot camp get MCSE Certification join MCSE Boot camps
Installing Windows Server 2003 from a Network Share, MCSE Boot Camp & MCSE
Training boot camp get MCSE Certification join MCSE Boot camps
Performing an Unattended Installation, MCSE Boot Camp & MCSE Training boot camp
get MCSE Certification join MCSE Boot camps
Using an Unattended Answer
File, MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE
Boot camps
Using the System Preparation
Tool, MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE
Boot camps
Using Remote Installation
Services, MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join
MCSE Boot camps
Windows Server 2003 Licensing,
MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot
camps
Software Installation and
Maintenance Technology, MCSE Boot Camp & MCSE Training boot camp get MCSE
Certification join MCSE Boot camps
Acquiring and Modifying
Software Packages, MCSE Boot Camp & MCSE Training boot camp get MCSE
Certification join MCSE Boot camps
Deploying Software Packages,
MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot
camps
Assigning Software Packages,
MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot
camps
Publishing Software
Packages, MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join
MCSE Boot camps
Deploying .zap Files, MCSE
Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
Upgrading Software, MCSE Boot
Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
Mandatory Upgrades, MCSE
Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
Optional Upgrades, MCSE Boot
Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
Redeploying Software, MCSE
Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
Removing or Disabling
Software, MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join
MCSE Boot camps
Deploying Service Packs and
Hotfixes, MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join
MCSE Boot camps
Installing Service Packs and
Hotfixes, MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join
MCSE Boot camps
Removing a Service Pack or
Hotfix, MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join
MCSE Boot camps
Slipstreaming Service Packs
and Hotfixes, MCSE Boot Camp & MCSE Training boot camp get MCSE Certification
join MCSE Boot camps
Adding Service Packs and
Hotfixes to a Network Installation Share, MCSE Boot Camp & MCSE Training boot
camp get MCSE Certification join MCSE Boot camps
Installing Multiple Hotfixes,
MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot
camps
Microsoft Software Update
Services, MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join
MCSE Boot camps
Windows Update, MCSE Boot
Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
Windows Update Catalog, MCSE
Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
Automatic Updates, MCSE Boot
Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
Software Update Services,
MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot
camps
The Windows Server 2003 Boot
Process, MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join
MCSE Boot camps
Preboot Sequence, MCSE Boot
Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
Boot Sequence, MCSE Boot
Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
Kernel Load, MCSE Boot Camp
& MCSE Training boot camp get MCSE Certification join MCSE Boot camps
Kernel Initialization, MCSE
Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
The Session Manager, MCSE
Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
The Boot.ini File, MCSE Boot
Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
Components of the Boot.ini
File, MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE
Boot camps
Computing (ARC) paths
pointing to the computer's boot partition, MCSE Boot Camp & MCSE Training boot
camp get MCSE Certification join MCSE Boot camps
Boot.ini Switches, MCSE Boot
Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
Advanced Boot Options, MCSE
Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
The Recovery Console, MCSE
Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
Installing and Starting the
Recovery Console, MCSE Boot Camp & MCSE Training boot camp get MCSE
Certification join MCSE Boot camps
Using the Recovery Console,
MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot
camps
Installing New Hardware, MCSE
Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
Using Driver Signing, MCSE
Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
Configuring Driver Signing,
MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot
camps
The File Signature
Verification Utility, MCSE Boot Camp & MCSE Training boot camp get MCSE
Certification join MCSE Boot camps
Configuring Hard Disks, MCSE
Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
Converting to Dynamic Disk
Status, MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join
MCSE Boot camps
Creating Simple Volumes, MCSE
Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
Creating Spanned Volumes,
MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot
camps
Creating Striped Volumes,
MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot
camps
Creating Mirrored Volumes,
MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot
camps
Creating Striped Volumes with
Parity RAID-5 Volumes, MCSE Boot Camp & MCSE Training boot camp get MCSE
Certification join MCSE Boot camps
Configuring File Systems, MCSE
Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
Encrypting File System (EFS),
MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot
camps
Encrypting Files Across the
Network, MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join
MCSE Boot camps
Encrypted File Recovery,
MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot
camps
Volume Mounting, MCSE Boot
Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
File Compression, MCSE Boot
Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
Copying and Moving
Compressed Files and Folders, MCSE Boot Camp & MCSE Training boot camp get MCSE
Certification join MCSE Boot camps
Defragmenting Volumes and
Partitions, MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join
MCSE Boot camps
Backing Up and Restoring Data,
MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot
camps
Backup Types, MCSE Boot Camp
& MCSE Training boot camp get MCSE Certification join MCSE Boot camps
Backing Up System State Data,
MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot
camps
Restoring Files and Folders,
MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot
camps
Restoring Active Directory
Directory Services, MCSE Boot Camp & MCSE Training boot camp get MCSE
Certification join MCSE Boot camps
Failed Domain Controllers,
MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot
camps
Damaged Active Directory
Databases, MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join
MCSE Boot camps
Authoritative Restores, MCSE
Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
Automated System Recovery,
MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot
camps
Adding Additional CPUs, MCSE
Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
Adding Removable Media
Drives, MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join
MCSE Boot camps
Peer-to-Peer networks, MCSE
Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
Creating Network Connections,
MCSE Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot
camps
Automatic IP Addressing, MCSE
Boot Camp & MCSE Training boot camp get MCSE Certification join MCSE Boot camps
DHCP Addressing, MCSE Boot
Camp & MCSE Training get MCSE Boot Camp Certification join MCSE Boot camps
Name Resolution, MCSE Boot
Camp & MCSE Training get MCSE Boot Camp Certification join MCSE Boot camps
NetBIOS Name Resolution, MCSE
Boot Camp & MCSE Training get MCSE Boot Camp Certification join MCSE Boot camps
Host Name Resolution, MCSE
Boot Camp & MCSE Training get MCSE Boot Camp Certification join MCSE Boot camps
Domain Name Space, MCSE Boot
Camp & MCSE Training get MCSE Boot Camp Certification join MCSE Boot camps
DNS Zones, MCSE Boot Camp &
MCSE Training get MCSE Boot Camp Certification join MCSE Boot camps
Active Directory Integrated
Stores, MCSE Boot Camp & MCSE Training get MCSE Boot Camp Certification join
MCSE Boot camps
Windows Server 2003 network,
MCSE Boot Camp & MCSE Training get MCSE Boot Camp Certification join MCSE Boot
camps
Active Directory Support for
Client Computers, MCSE Boot Camp & MCSE Training get MCSE Boot Camp
Certification join MCSE Boot camps
Contiguous namespace. The
name of the child object in an object hierarchy
Domain Controllers, MCSE Boot
Camp & MCSE Training get MCSE Boot Camp Certification join MCSE Boot camps
Domain Functional Levels,
MCSE Boot Camp & MCSE Training get MCSE Boot Camp Certification join MCSE Boot
camps
Controlling Access to Active
Directory Objects, MCSE Boot Camp & MCSE Training get MCSE Boot Camp
Certification join MCSE Boot camps
Delegating Administrative
Control, MCSE Boot Camp & MCSE Training get MCSE Boot Camp Certification join
MCSE Boot camps
Publishing Resources, MCSE
Boot Camp & MCSE Training get MCSE Boot Camp Certification join MCSE Boot camps
Setting Up and Managing
Published Printers, MCSE Boot Camp & MCSE Training get MCSE Boot Camp
Certification join MCSE Boot camps
Installing Printer Drivers,
MCSE Boot Camp & MCSE Training get MCSE Boot Camp Certification join MCSE Boot
camps
Setting Up and Managing
Published Shared Folders, MCSE Boot Camp & MCSE Training get MCSE Boot Camp
Certification join MCSE Boot camps
Auditing Access to Active
Directory Objects, MCSE Boot Camp & MCSE Training get MCSE Boot Camp
Certification join MCSE Boot camps
links