Answer Posted / darshana

Client server is a 2-tier application. In this, front end
or client is connected to
'Data base server' through 'Data Source Name',front end is
the monitoring level.


Web based architecture is a 3-tier application. In this,
browser is connected to webserver through
TCP/IP and webserver is connected to Data base
server,browser is the monitoring level.
In general, Black box testers are concentrating on
monitoring level of any type of application.



All the client server applications are 2 tier
architecutures.
Here in these architecutre, all the "Business Logic" is
stored in clients and "Data" is stored in Servers. So if
user request anything, business logic will b performed at
client, and the data is retrived from Server(DB Server).

Here the problem is, if any business logic changes, then we
need to change the logic at each any every client.

The best ex: is take a super market, i have braches in the
city. At each branch i have clients, so business logic is
stored in clients, but the actual data is store in servers.
If assume i want to give som discount on som items, so i
need to change the business logic. For this i need to goto
each branch and need to change the business logic at each
client. This the disadvantage of Client/Server
architecture.

So 3-tier architecture came into picture:

Here Business Logic is stored in one Server, and all the
clients are dumb terminals. If user requests anything the
request first sent to server, the server will bring the
data from DB Sever and send it to clients. This is the flow
for 3-tier architecture.

Assume for the above. Ex. if i want to give som discout,
all my business logic is there in Server. So i need to
change at one place, not at each client. This is the main
advantage of 3-tier architecture.

I HAVE AN INTERVIEW IN A SOFTWARE COMPANY FOR THE POST OF FUNCTIONAL TEST ENGINEER. THEY WANT THE PERSON FROM BCOM BACK GROUND( I AM A BCOME GRADUATE 2006) AND THE PERSON SHOULD HAVE GOOD ACCOUNTS KNOWLEDGE. NOW I WANT TO KNOW WHAT KINDS OF QUESTIONS THEY CAN ASK OR CAN GIVE IN WRITTEN TEST. I M NERVOUS COZ ITS BEEN 5 YEARS I HAVE DONE BCOM. SO HOW SHUD I PREPARE FOR INTERVIEW.PLEASE HELP? reply me pls. its urgent. thanks

2071

---

please anyone let me know the -ve testing of Excel sheet?

9730

---

wht is Manual Testing Frame work

2174

---

1.What types of documents would you need for QA, QC, and Testing?

6022

---

Tell some examples of bug severity and bug priority?

1144

---

Explain the sub-genres of performance testing?

1256

---

What is reverse engineering?

1278

---

Hi, can any tell how a tester can be judged? i have to interview a tester, how should i judge whether he has a justified experience or not? how a person with 3 years of experience in manual testing can be judge?

2078

---

What are the different test techniques used in functional testing?

1233

---

Write the test cases for file transfer from one user to other from Google Drive/drop box?

8027

---

What is the Myers Boundary Table?

2075

---

Hi Friends, I've to submit a presentation in my office about "Different bug tracking tools" ? Where can i find (or any site) the templates for the bug tracking tools.

1937

---

Write 10 test scenarios to test remember me checkbox present in login window

1637

---

Why we have to do manual testing?

1742

---

How to find bug in photos and videos ??

2340

---