Answer / raghava

Client server is 2 tier application, interaction between client and user....
ex:atm machine
web application is n-tier application interaction between client and n number of users....
ex: gmail application

Answer / rajendra

CLIENT / SERVER

An issue of client/server is that the application must be
installed on each users computer. Depending on the
complexity of the program, the environment it is written in,
and the care the developer took to package the program, this
can be as easy as creating a shortcut to an executable on a
shared network drive or it can be as hard as spending hours
installing and configuring runtime software and components
on each client computer.


Introduction to 2-Tier Architecture

2-tier architecture is used to describe client/server
systems where the client requests resources and the server
responds directly to the request, using its own resources.
This means that the server does not call on another
application in order to provide part of the service.















Introduction to 3-Tier Architecture

In 3-tier architecture, there is an intermediary level,
meaning the architecture is generally split up between:

1. A client, i.e. the computer, which requests the
resources, equipped with a user interface (usually a web
browser) for presentation purposes
2. The application server (also called middleware), whose
task it is to provide the requested resources, but by
calling on another server
3. The data server, which provides the application server
with the data it requires







Comparing both types of architecture

2-tier architecture is therefore a client-server
architecture where the server is versatile, i.e. it is
capable of directly responding to all of the client's
resource requests.

In 3-tier architecture however, the server-level
applications are remote from one another, i.e. each server
is specialised with a certain task (for example: web
server/database server). 3-tier architecture provides:

* A greater degree of flexibility
* Increased security, as security can be defined for
each service, and at each level
* Increased performance, as tasks are shared between servers

Multi-Tiered Architecture

In 3-tier architecture, each server (tier 2 and 3) performs
a specialised task (a service). A server can therefore use
services from other servers in order to provide its own
service. As a result, 3-tier architecture is potentially an
n-tiered architecture

Answer / uday

client server application is accesed by only client and the testers working on the application, where as web based application is accessed by all the users ,applications such as railway reservation,mails etc come under web based applications

How can we change(increase or decrease)the size of a array variable with out loosing the previous values

1 Answers   DST Global Solutions,

---

Test script is generated and it is enhanced.It is required to be saved.But the disk space is insufficient.You are not permitted to delete any scripts.How are you going to save?

1 Answers   Accenture, DELL,

---

What is Automation frame work.How we will prepare in real time.

9 Answers   AppLabs,

---

What is QTP scenario.

1 Answers   Persistent,

---

why we use sendkey method in qtp?

2 Answers   ABC,

---

Hi any body can tell me the in detaled information about Description.Create() thanks in advance

2 Answers  

---

Gmail application is there.On that Inbox so many mails are there including naukari mails. On that mails i can select the only naukri mail checkboxes. plz tell the descriptive code for the above..

2 Answers   Impetus,

---

In QTP, Which are the concepts are needed to do Functional testing and Regression testing?

3 Answers   IBM,

---

waht is the diff b/w Environment variable and Global variable in qtp?? explain types of variable in qtp??

5 Answers  

---

What is the difference in between function and sub as well as give some code of both

1 Answers   Wipro,

---

What are the different recording modes?

1 Answers  

---

Hi, I am trying to automate the web application for generating Reports.I am facing issue with IE while running the script. After 4 report IE crashes.I am using QTP 9.5 with IE version 7. Can anubody give me solution for this issue. Thanks in advance-Jyotsna

0 Answers  

---