rajendra prasad reddy


{ City } hyderabad
< Country > india
* Profession * software test engineer
User No # 3404
Total Questions Posted # 62
Total Answers Posted # 103

Total Answers Posted for My Questions # 319
Total Views for My Questions # 999634

Users Marked my Answers as Correct # 1103
Users Marked my Answers as Wrong # 699
Answers / { rajendra prasad reddy }

Question { 11973 }

Can any one tell me abt. QA & QC


Answer

In a Nushell
QA - Defect Prevention Process(Verification)
QC - Defect detection and Removal process(validation)
QA includes Walkthroughs,Reviews,Auditings,Inspections,
Metting..etc
QC means actual testing process.

anyway the intention of the two processes is to give a
quality product to the customer.
if the process is quality oriented then the product will be
a quality one.

rajendra_penumalli@yahoo.com

Is This Answer Correct ?    0 Yes 0 No

Question { 16304 }

what is mean by client and server?


Answer

Hai friendz I am a rajendra

Client-server it is network architecture
Client-server is a two tier architecture as it name
indicates
Client and server are two important important components in
client server architecture.

Client is nothing but an application program running in a
Computer which can access data or files from server.

Client application program sends requests to the server.

Client application program provides a front-end to access
Data from server.

Server processes the client requests and send information
to the client.

TCP/IP or HTTP protocol is used for communication between
client and server.

In a Nutshell client is a system which has a tool i.e.
application program to access data from server.

Server processes client requests and sends requested
information to client

but i want say one thing without diagramatic explanation
it is easy expaln clent-server architecture.

Finally

applications architectures are three types
1.Two tier architechture(clent server )
2.Three tier architechture.
3.N-Tier architechture
nat test engineer should have a fair knowledge about above
architechtures bcoz any applications/products will fall
any one of the above stated architechture.

still you have any doubt mail me

at :
rajendra_penumalli@yahoo.com

ring me at :
9885162742
Hyderabad
A.P

Is This Answer Correct ?    26 Yes 4 No


Question { TCS, 9128 }

Hou can u test a website or a web application? Manually or
Automated?


Answer

Hi friends I am rajendra from Hyderabad.

Web testing in manual process is possible for only some
testing approaches like
Functionality testing,
User interface testing (GUI Testing)
Usability testing,
Security testing,
Compatibility testing (browser compatibility testing -
very imaportent in web application testing),
Database testing
But if you want to test Performance of the website you must
use some testing tool like WebLoad ,loadRunner.
If the application developed in java then we can use Jmeter
for testing the web application.
JMeter is a opensource freely available software from
Apache software foundation, one can download and use it
Without spending a single rupee.
The web application means it may have 2 tier simple
architecture or 3 tier or n tier architecture.
If it is used 3 tier or N tier architecture then we should
Check the performance of the system for retrieving data
from database...etc.
Except performance testing we can conduct web testing in
manual.
But web performance is the prime issue in web testing.

Is This Answer Correct ?    3 Yes 0 No

Question { 10885 }

How do you load large data to the SQL server database?


Answer

YESit is possibl by using TEXT data type.
It cn handle data upto 2GB

Is This Answer Correct ?    4 Yes 0 No

Question { Manhattan, 19645 }

Suppose you testing Calculator application and you got
problems like 1/1=2, 2/2=1, 3/3=6, 4/4=1, 5/5=10. Now how
will you describe the bug title as well as give the bug
description.


Answer

Hai friendz this is rajendra

yuo just observe the calculator inputs and ouputs

operation-1: 1/1=2,
operation-2: 2/2=1,
operation-3: 3/3=6,
operation-4: 4/4=1,
operation-5: 5/5=10

in first operation it is adding 1,1 instead of division
in second operation it is correctly working
in third operation it is adding 3,3 instead of division
in fourth operation it is correctly working
Again in first operation it is adding 5,5 instead of
division
here one more importent thing is, it is performing division
operation correctly for even numbers
and performing addition instead of division for odd numbers.

so it is clear that it is a arithmetic error:
Bug description: arithmetic error in performing even number
division operation

byeeeeee friendz

rajendra_penumalli@yahoo.com
ring me at :9885162742
hyderabad
a.p

Is This Answer Correct ?    23 Yes 2 No

Question { TCS, 10031 }

WHAT ARE THE DIFFERENT TECHNOOGIES OR SOFTWARE LANGUAGES
THAT SOFTWARE TESTER SHOULD KNOW?


Answer

Hai, i am rajendra

A Tester sholud know following technologies

1.C-language
2.Java/C++ or atleast object oriented language basics
3.Database SQLServer/Oracle or atlease simple SQL querriies
4.Some Networking concepts TCP/IP..etc
5.HTML,VB Script,Java Script....scriting languages
6.Microsoft presentaion tools like
MS PowerPoint,
MS Excel...etc

If you the above you are called as fully armed soldier in
software testing.

C- language is useful for learning Winrunner Automation tool
bcoz Winrunner scripting languageis Test Script language is
very much similar to c -languge.

The QTP uses VbScript or JavaScript for automation script
generation.

SQL queries are useful for database testing manually and
also useful automated Data driven testing.

MS office is useful for test data presentation.

ok
friendz still if have doubt contact me
byeeeeeeeeee
rajendra_penumalli@yahoo.com
mobile:9885162742
Hyderabad

Is This Answer Correct ?    6 Yes 2 No

Question { 5500 }

how to dispaly a particular row details from a given table


Answer

SELECT * FROM TABLE WHERE(rowid=N)

Is This Answer Correct ?    2 Yes 2 No

Question { IBM, 39811 }

What is ACID property?


Answer

ACID property related to transactions
i.e client server communication is called transaction.
A transaction is a sequence of operations performed as a
single unit of work.A logical unit of work must exhibit
four properties called ACID(Atomicity,Consistency,Isolation
and Durability)properties to qualify a transaction.

Atomicity:A transaction must be an atomic unit of work.i.e
either allof its data modificationsare performed ,or none
of them is performed.

Consistancy:when trasaction completed it must leave all data
in a consistant state.

Isolated:Modifications made by current transactions must be
isolated from the modifications made by other trasaction.

Durability: after transaction has completed ,it's effects
are permanently in place in the sytem.

Is This Answer Correct ?    187 Yes 21 No

Question { 10941 }

What are Triggers and Rules?


Answer

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.

Is This Answer Correct ?    12 Yes 2 No

Question { GE, 17462 }

What does VBS file contain...??? what is VBS file.. ???


Answer

Hai sairam i am rajendra

VBS means Visual basic script file

Normally QTP uses VBscript for automation script generation.
You can view this code in expert mode of QTP.

I think you are clear with this answer

if have any doubt regarding testing both manual or
automation you can contact me

rajendra_penumalli@yahoo.com
Mobile;9885162742
Hyderabad

Is This Answer Correct ?    8 Yes 3 No

Question { 10882 }

what operator performs pattern matching?


Answer

'Like' operator is a pattren matching operator.

Eg;
select name from class where name like 'a%'

selecting names starting with letter 'a' and any length

select name from class where name like '_a%'
selecting names starting with second with letter 'a' and
any length.
select name from class where name like '[abc]%'
selecting names starting with first letter 'a'or 'b'
or 'c' and any length.

select name from class where name like '[^abc]%'
selecting names except starting with first letter with
letter 'a'or 'b' or 'c' and any length.

Is This Answer Correct ?    8 Yes 1 No

Question { 28806 }

what are the limitations of testing?explain in detail plz??


Answer

Ideally there is no zero defect product in the software
industry.

Normally it the product reaches to 98% defect revoal procss
then it is called zero defect product.

Limitations:
Exhaustive testing is not possible.
There is no zero defect s/w in the world.

rajendra_penumalli@yahoo.com

Is This Answer Correct ?    11 Yes 4 No

Question { CTS, 70383 }

what is the difference between error,bug and defect?


Answer

Hai friendz i am rajendra,

I would like to give simple and easy answer for this
question,
Error -A Fault in the program leads to error in program
exection.
Defect-If the error caught by tester then it is called
as defect.
Bug - If the defect is accepted by the development people
then it is called as Bug.

Fault---->Error---->Defect---->Bug
Error may be generated due to syntax or symantic fault.

Different types of error are
1.syntax errors
2.symantic errors
3.Logical errors
4.Runtime errors...etc

All athe above errors will be occured during white box
testing of the application/product.

In BlackBox testing main defects are
Requirement missing or
Wrongly interpreted requiremets,
Misoperation of fuctionalities...etc.

ok byeeee
rajendra_penumalli@yahoo.com
09885162742
hyderabad

Is This Answer Correct ?    139 Yes 22 No

Question { Infosys, 8222 }

what do you understand bythe term 'de-mountable volumes'?


Answer

demountable volues are Floppy disk,CD disk and USB memory
devices
these are secondary storage devices,these can be
demountable devices

--understood

Is This Answer Correct ?    8 Yes 0 No

Question { 12685 }

How we test battery back up time using load testing
especially for mobile testing ?


Answer

Battery back test procedure:

1.charge the mobile up to Max capcity voltage.
(i.e untill it should shows all the power
indicating line are displayed).
2.call to a number and continuously use it untill
the battery fully drained out.measure the time of
life for one full cycle.
3.Charge the battery upto 20% of it's capacity
use it untill the battery fully drained out.
4.Charge the battery upto 40% of it's capacity
use it untill the battery fully drained out.
5.similarly check for 60%,80% of battery charge
capacities and measure the battery backup time.
6.verify the battery life by contunously sending
shoty data messages.
7.Verify the (GUI) power indcating lines or levels
correctly displaying or not with respect to
actually charged battery level.
8.test the phone in non signal coverage area and
measure the battery stand by time.
(bcoz in non signal coverage area cell continuosly
searches for signals due to this the power
continuosly dissipated as RF signals and
battery drained very soon)

byeeee
friends
Rajendra
rajendra_penumalli@yahoo.com
9885162742

Is This Answer Correct ?    2 Yes 0 No

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