What is two tier and three tier architecture?

Answer Posted / sethu

Two tier architecture :

Client server application. Client acts as Front End
and Server acts as Back end (databases).
Here where client make a request to the server where
the query evaluated in the server and returns the request
given by client .where here all the query evaluated in the
server side .

Three tier Architecture :
Three tier architecture means N tier architecture
1. Presentation Layer
2. Business Layer/ Middle Layer(tier)
3. Database Layer.

where here client make a request to server through
presentation layer to get some data the query is evaluated
in business layer and the data is retrieved from the
database layer(all the complicated work done in middle layer
) . Database layer is responsible for all the connections
between the server .so the accessing through database make
easier through 3tier architecture

Is This Answer Correct ?    29 Yes 16 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Can any one share the domain knwoldege of Telecom Jeeva jeevachr@gmail.com

2048


There are some features to improve the performance of a Product. What are those factors?

1606


a newly launched web site is hosted on web server.It is expected that 100 people visit the website every hour and browse 30 pages spending a total 15 minutes. what is the maximum hits/sec that the web server should support this load?justify your answer. need urgently. by rimesh

1413


What does a manual tester need to become proficient with db testing?

694


Hi Could someone please provide Siebel Testing Interview questions for 5 years exp.

4414






Usually customers won’t give all the requirements. How will you manage & collect all the necessary information?

757


do we require any scripting languae to write test cases in test director? what for it is used?it is like back end?only database we can there?

1651


what s test block ratio? please any one answer me..

1823


What is a critical bug?

655


Differentiate verification and validation?

820


Test cases on send/ receive button of Microsoft outlook.

4100


What are the different ways to check a date field in a website?

668


What are the different servers and difference between them?

1610


Tell me some Adhoc testing scenarios of ebay (online auction product)?

3387


Hi Friends, I wish to start my career in manual Testing as I believe I am ready to face Interviews.I have good domain knowledge in banking(investment and retail) and insurance.To be in the competition I have added three years of testing experience to my CV apart from my domain experience. Can someone please advice some real time tips which can help in facing the interview. Thanks in advance

1632