it is a wire less tech use to transfer data from 1 device to
other.

advantage :  
     * wireless.
     * chip.
disadvantage :
     * only work for small distance( in feet. )
     * can not penetrate wall.

applications :
      * remote based systems.
      * mobiles.

I am not exactly no what is Upsizing.
But Down Sizing is nothing but The Process of mo
ving an application from a {main frame ) to cheaper
system, typically a (client-server) system.

Even I want to know differences differences between them.

up and down

Remote procedure call is used to mount remote clients to 
the servers.

Remote Procedure Call (RPC) is a protocol that one program 
can use to request a service from a program located in 
another computer in a network without having to understand 
network details. (A procedure call is also sometimes known 
as a function call or a subroutine call.) RPC uses the 
client/server model. The requesting program is a client and 
the service-providing program is the server. Like a regular 
or local procedure call, an RPC is a synchronous operation 
requiring the requesting program to be suspended until the 
results of the remote procedure are returned. However, the 
use of lightweight processes or threads that share the same 
address space allows multiple RPCs to be performed 
concurrently. 
When program statements that use RPC are compiled into an 
executable program, a stub is included in the compiled code 
that acts as the representative of the remote procedure 
code. When the program is run and the procedure call is 
issued, the stub receives the request and forwards it to a 
client runtime program in the local computer. The client 
runtime program has the knowledge of how to address the 
remote computer and server application and sends the 
message across the network that requests the remote 
procedure. Similarly, the server includes a runtime program 
and stub that interface with the remote procedure itself. 
Results are returned the same way.

mich better and faster access.. provision of securuty too..
higher tasks can be done in parallel.

yah 
ur 
absolutly
correct yar

load balancing is a process where you will  check the load 
of all the nodes connected to the network and than decide 
where to execute & in which node you want to distribute the 
process for execution so that balance of the whole system 
is maintained.

these two are  SQL concepts

TRigger is  a special type of stored procedure that 
automatically takes effect when the data in a specified
table is modified.
triggers invoked in response to an INSERT,UPDATE OR DELETE 
STATEMENT EXECUTED.
TRIGGERS are used to handle some exceptional conditions
if u r moving data 40 MB into data base,But data base having
only 30 mB free space then the trigger fires automatically
and the entire transaction automativcally roll backs.

Rules:
Rules are database objects used to enforce data integrity.
this object bound to column or userdefined  data types.
to ensure that only valid values are allowed to insert in 
to columns.

so trigger acts automatically nad rollbacks the transaction
when error is occured.

rule is used to enforce data integrity on a column or user 
defined data type.
 
are you clear if you want any clarification please mail to 
me.

Triggers are special user defined actions usually in the 
form of stored procedures that are automatically invoked by 
the server based on data related events. It can perform 
complex actions and can use the full power of procedural 
languages. 
A rule is a special type of trigger that is used to perform 
simple checks on data. 

Process-per-client Architecture. 
Multithreaded Architecture. 
Hybrid Architecture.

Non-GUI Client: These are applications, generate server 
requests with a minimal amount of human interaction.

GUI Clients: These are applicatoins, where occassional 
requests to the server result from a human interacting with 
a GUI (Example: Windows 3.x, NT 3.5)

OOUI clients : These are applications, which are highly-
iconic, object-oriented user interface that provides 
seamless access to information in very visual formats. 
(Example: MAC OS, Windows 95, NT 4.0)

server which is handled by the superman is called super server

krish is the super server

These are fully-loaded machines which includes 
multiprocessors, high-speed disk arrays for intervene I/O 
and fault tolerant features.

The Building Blocks of Client/Serevr are
1.Client
2.MiddleWare(/)"slash",which ties the client to  the server
3.Server
the basic block architecture can be used from tiny to 
interlgalactic

building blocks of Client Server can be used in 4 types:
1.tiny shops
2.small shops & departments
3.integalactic enterprises
4.a post scarcity world