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12 Client Server Architecture Questions And Answers

1⟩ What is APPLEs VITAL architecture?

VITAL provides a way of building information systems

constructed from generalized modules that can be reused and

shared.It specifies how to construct and provide interfaces

for these modules. A cornerstone of Apple's client/server

architecture is Data Access Language (DAL). DAL

consists of software components for the client and the

server (Macintosh System 7 includes the client component,

DOS and Windows clients are sold separately). DAL sits

between the client and server components.

This approach allows varied clients to communicate with

many different servers. With DAL, a change in the DBMS

does not affect the front-end;

it simply requires the appropriate DAL link.

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2⟩ What is Suns Open Network Computing Architecture?

Open Network Computing (ONC) is the Sun architecture, with

third party alliances providing the missing pieces. Sun's

RPC is licensed by more than 300 companies, including DEC,

IBM, and Apple Computer. It is a lean, efficient RPC that

is particularly effective for installations not requiring

WAN support. Transport Independent Remote Procedure

Calls (TI-RPC) were co-developed by Sun and AT&T. TI-RPC

runs independent of the underlying network transport,

allowing applications to run unmodified over multiple

transport protocols including NetWare,PCNFS, AIX/6000,

Solaris, UNIX/SVR4, AIX/ESA. NetWise developed the

TI-RPC Application Toolkit source code generation

technology.

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3⟩ What is IBMs System Application Architecture?

SAA is a collection of selected software interfaces,

conventions, and

protocols that are used as a framework for developing

consistent,

integrated applications across the major IBM computing

environments.

Four major components of this architecture are:

- Common User Access (CUA) defines conventions for GUI

look and feel.

- Common Programming Interface (CPI) provides languages,

tools, and APIs that give applications greater portability

and more consistent user interfaces across multiple

platforms.

- Common Communication Support (CCS) supports existing

communications standards, such as LU 6.2.

- Common Applications, written by IBM, will serve as

demonstrations of SAA concepts and make it easy for users

to migrate between systems.

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6⟩ What is client server architecture and is it always two tire architecture?

CLIENT SERVER MODEL IS A COMMUNICATION MODEL USED IN NETWORKING

BY THIS MODEL WE SHARE THE WORK LOAD B/W 2 PARTIES -->CLIENT AND SERVER

USUALLY A CLIENT AND SERVER MAY RESIDE ON DIFF. MACHINES BUT IT IS NOT NECESSARY ,THEY MAY ALSO BE PRESENT ON THE SAME MACHINE

IT IS NOT NECESSARY THAT A CLIENT SERVER MODEL IS 2 TIER ,IT CAN ALSO BE 3TIER

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8⟩ What is 3 tier, 2 tier and n tier client server architecture?

In three tier system 1st tier is user interface usually

webpages,2nd tier is application server it may be oracle

application server,java application server,3rd tier is

database in which data is stored.

In 2 tier system application server is missing.

In single tier system only server part is present

client part is missing or not present.

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9⟩ What is size of NTDS.DIT in win server 2000 and 2003?

In win NT Database is going to store in SAM[security

accounts manager]and the size of data base is 40MB,That's

the reason we can create 40 thousand object in winNT

But in win 2000/2003 database is going ot store in NTDS and

the size of the data box is 12MB and it is extendable, In

win 2003 we can create 1 billion objects

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12⟩ What is Digitals Network Application System (NAS) architecture?

NAS is a software suite that enables applications to be

integrated across a distributed network of multivendor

systems: NAS services are divided into four main groups:

- Application Access Services which support user interface

(forms based,graphical or character terminal based)

- Communication and Central services which support

communications using electronic mail and EDI

- Information and resource sharing, which supports

database access and compound documents (collection of

images, graphics and conventional text)

- System Access services which provides a standard

operating system interface.

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