Q351.In
one of my loan application, 70% loan has to be approved. 30% loan has
to be rejected irrespective of the number of iterations. How to
achieve this?
Answer:
To
achieve above scenario, I will insert both of the actions into one
block and I will provide the % by choosing random property option.
Q352.I
am recording a business scenario but I failed to record the events.
Answer:
If
you are failed to launch the application, then change the DEP (Data
Execution Prevention) settings in my computer properties.
Step
1 : My Computer
Step
2 :Properties
Step
3 :Advanced System Settings
Step
4 :Advanced Performance Settings
Step
5 :DEP
Step
6 :Choose turn on DEP for all programs.
Q353.How
many places you can find server response?
Answer:
From
the following places we can find the server responses.
Full
mode of replay log.
Generation
log.
Snapshot
view.
Tree
view.
Empty
LB and empty RB function.
Q354.How
to design manual scenario?
Answer:
Follow
the following steps to design manual scenario.
1.
Choose manual scenario.
2.
Push the script into controller.
3.
Choose schedule by scenario (or) schedule by group.
4.
Choose real world (or) basic schedule.
5.
Assign the quantity.
6.
Assign load generators.
7.
Verify connectivity with LG’s.
8.
Configure SLA’s (if required).
9.
Configure runtimes settings for every script.
10.
Set the result path.
11.
Provide ramp up, ramp down, duration.
Q355.How-to
design goal oriented scenario?
Answer:
Follow
the following steps to design goal oriented scenario.
1.
Choose goal oriented scenario.
2.
Push the scripts into controller.
3.
Click on edit scenario goal.
4.
Provide profile name.
5.
Provide goal type and threshold point.
6.
Provide max and min users.
7.
Provide duration once it reaches the goal.
8.
Configure notifications if it is not able to reach goal.
9.
Distribute load in terms of percentage.
10.
Assign LG and check the connectivity.
11.
Configure SLA’s (if required).
12.
Set the result path.
Q356.What
is the differences between request and hit?
Answer:
Request
: User action is a request.
Hit:
Successful request is a hit.
Q357.What
is load balancing?
Answer:
Load
balancer is a URL, which will distribute load in between web
instances.
As
part of performance testing you will receive two kinds of URL.
1.
Direct URL: It will
access web instance directly.
2.
Load balancer URL:
which will distribute the load in between web instances.
Q358.While
running the test how to verify whether load balancing is happening
properly are not?
Answer:
While
running the test we have to monitor resource utilization (C.P.U and
Memory) each and every instance. If all the instances are using same
level of C.P.U and memory, then we can conclude that LB is happening
properly. If any one of the instance reporting less C.P.U memory
utilization then we have to conclude LB is not happening properly.
Q359.What
are the actions you can perform while running the test?
Answer:
The
following actions we can perform while executing the test.
1.
Add the users.
2.
Delete or kill the users.
3.
Add the script.
4.
Disable or delete the script.
5.
Verify the user runtime viewer.
6.
Verify the user log.
7.
Verify how many users running currently.
8.
Add or change the LG for down status users.
9.
Identifying which transactions are passing and failing.
10.
Verify who the users are ramping up, throughput, hits per second etc.
Q360.Is
it possible to transfer RTS from controller to vugen? Why?
Answer:
RTS
will be transferred to controller from vugen script but not vice
versa.
Q361.Where
do you place the think time?
Answer:
We
should not place the think time in between start and end transaction.
Always place the think time after end transaction.
Q362.Where
we can find a screen shot?
Answer:
Go
to the vuser log and click on the camera symbol.
Navigate
to the LG results path and you can find HTML page for every error.
Q363.How
to add multiple load generators for single script?
Answer:
To
add multiple generators we have to follow below steps.
Step
1: Select the group
step
2:Click on vusers
step
3:Add new LGs against vusers
Q364.How
to add multiple scripts against one group?
Answer:
To
add multiple scripts follow below steps
step
1:Select the group
step
2:Click on vusers
step
3: Add new script for existing users or new users
Q365.How
to schedule a test to start at particular time?
Answer:
Using
start time option (under scenario schedule), we can schedule a test
to run at
particular
time. Don't forget to hit start button after scheduling.
Q366.How
to create multiple schedules in one “.lrs” file?
Answer:
Using
new schedule option, we can create multiple schedules for various
kind of test.
Q367.On
what basis you are deciding how many LGs required for test?
Answer:
Based
on below parameters, you can decide how many LGs are required
1.
Number of users
2.
LG configuration
3.
Script variables and size
4.
Protocol type
5.
Running vuser as a thread or process
Q368.Is
it possible to extend the test duration while running the test?
Answer:
Yes
. possible to extend the test duration using pause and resume
schedule option.
Q369.How
to copy scheduler settings (ramp up, duration and ramp down) from one
script to another script?
Answer:
Using
copy scheduler options, we can copy the scheduler settings from one
script to
multiple
scripts.
Q370.My
script is working fine in vugen but not in controller?
Answer:
-
Verify whether you are able to access the application from the LG
-
Verify LG runtime quota.
-
May be load balancing is not happening properly.
Q371.Tell
me few common errors found in controller?
Answer:
-
web_reg_find failed to find the text
-
User abnormally terminated
-
Authentication failed 403 forbidden error.
-
HTTP 500 error.
-
Memory violation exception error.
-
No match found for the requested parameter
Q372.How
to generate the reports?
Answer:
Step
1:Choose reports
step
2:Navigate to report template
step
3:Click on generate report
step
4:Save on required format.
Q373.How
to create a template?
Answer:
Step
1:Select Tools
step
2:Navigate to templates
step
3:Create new template
step
4:Click on save and close button.
Q374.How
to add existing template to current session?
Answer:
Step
1:Open “.lra” file
step
2:Go to tools
step
3:Choose templates
step
4:Select specific template
step
5:Apply to session.
Q375.What
is the difference between absolute graph and relative graph?
Answer:
Absolute
graph plots the graph based on the system time. Relative graph plots
the graph based on elapsed time.
Q376.
How to measure the response time for file uploading request?
Answer:
For
uploading the file, put the transaction timers across the request and
cross check afterwards by extracting the date/time information from
the repository and load runner transaction.
And
also using text verification function we have to verify whether
successfully uploaded text is present or not.
Q377.
How to measure the response time for file downloading request?
Answer:
For
downloading, put the transaction timers across that request and use
web_get_int_property( HTTP_INFO_DOWNLOAD_SIZE ) function as
controlling mechanism to stop the timer.
Q378.
How to handle dynamic page requests?
Answer:
To
handle dynamic page request , first we have identify the request
which is causing to generate dynamic fields. Then for that particular
request copy the body from the url mode and also identify string
format .
After
that using strcat() ,sprintf(), and for loop we have have to build
the string.
Write
web_custom_request() and substitute that builded string in the body
of web_custom_request() function.
Q379.
In a scenario i have 100 users but i have limited data which was not
reusable. Now which parameter properties i have to use to design a
test?
Answer:
When
ever we don't have sufficient data points at that using when out off
values we can instruct either the user has to come out or continue
in a cyclic manner or continue with the last value.
Q380.
In a scenario i have 100 users but i have limited data which was
reusable. Now which parameter properties i have to use to design a
test?
Answer:
If
the data is reusable then either we can use sequential or random we
can use as a parameter property to design the test.
Q381.
I have 10 scripts. while executing those i wanna target each and
every script with targeted number of users? Then what is your
approach to design such type of scenario?
Answer:
To
design such type of scenario we have to select the scenario as
schedule by group. So that individually we can distribute the load to
the all he scripts.
Q382.
I have 10 scripts. while executing those i wanna execute all in a
single group for that what is your approach to design the scenario?
Answer:
To
design such type of scenario we have to select the scenario as
schedule by scenario. So that controller will consider all the
scripts as a single group.
Q383.
How to know that whether a file is uploaded or not?
Answer:
once
the file is uploaded immediately the text will appear like the file
successfully uploaded . So using the text verification function
web_reg_find() we can verify either the file was uploaded or not.
Q384.
There is any impact will be on the response times? Why?
Answer:
The
impact should be there on the response times because while loading a
page for the first time all the supporting files will be loaded for
this browser took some time this will be includes in the response
time.
Where
as without clearing cache files again the user triggered one more
same request is the response would come too early than previous.
So
we should remove cache and cookie files for each and every iteration.
Q385.
While executing the test with 1K you found that system memory reached
to 95%. The customer asked you to execute test with 1.5K ? Is it
possible to kick off the test ? Why?
Answer:
Already
the memory is reached to 95% so not possible to execute the test with
the same instances. So definitely we have scale up our instances to
kickoff one more test with 1.5K users.
Q386.
For a retail application client asked that suddenly load should
increase How to design such type of scenario?
Answer:
For
this kind of scenario we have to design spike test.
Step
1: inject the script into the controller
step
2: copy the same script as a second script.
Step
3: choose schedule by group and assign targeted number of users to
both the scripts.
Step
4: first run the first script and after some time to apply the load
suddenly on the application run the second script .
Q387.
The users are login to the application . If user is successfully
logged in then only the page is redirect to next page otherwise
again user has to perform same login transaction?
Answer:
I
will insert the text verification function web_reg_find to know
whether the user logged in to the application or not .
After
that using If else and strcmp functions and using user defined
function I will complete this scenario.
Syntax:
web_reg_find(“text=welcome”,”savecount=textcount”,LAST);
if
(strcmp(lr_eval_string(“{textcount}”),==0))
{
lr_output_message(“the
login is failed”);
login();
}
else
{
lr_output_message(“the
login is successful”);
}
Q388.
How to generate random value from an array?
Answer:
Using
correlation function web_reg_save_param capture the dynamic values
and all the values were stored in an array.
Using
lr_paramarr_random () function we can generate a random number from
that array.
Syntax:
int
x;
web_reg_save_param(“cRandom”,”lb=”,”rb=”,”ord=all”,LAST);
x=lr_paramarr_random(lr_eval_string(“{cRandom}”));
Q389.
In a scenario all the boundaries are matching . i wanna capture all
values ? How to do ?
Answer:
Using
ordinal argument we can capture all values whose boundaries are
matching/same.
Q390.
How to edit the script?
Answer:
Once
the script was recorded then we can edit script by parameterization ,
correlation , inserting transactions, inserting validation points ,
inserting rendezvous points and also we can perform enhancements like
using c functions and file operations.
Q391.
Why we need to give think time in between requests?
Answer:
Giving
think time in between the requests is must because if we did not give
the think time the requests will fair back to back this is not
realistic.
So
to create realistic environment and also to give breathing time to
the server we will give think time in between the requests.
Q392.
What is the differences between HTML and URL modes?
Answer:
|
HTML
mode
|
URL
mode
|
|
1.
used for web based applications
2.
for each every reply separate step will be recorded.
3.
generates requests in the form of either web_url or
web_submit_data.
|
1.
used for desktop applications
2.
For each every reply separate step will be recorded along with
the server side responses .
3.
generates requests in the form of web_custom_request.
|
Q393.
What is the differences between socket level and wininet level data?
Answer:
In
general socket level data is used for web based applications and
wininet level is used for client server applications like desktop
applications.
When
ever we found that few action are missed during the recording a
script at the time we will change the capture level.
Q394.
What you will do when the response time is not meeting as required?
Answer:
Once
test got executed we will compare the response times with the
expected if both are meeting that is called exit criteria if not then
we have to drill down for the bottle necks from client side , server
side , application side and also from the configuration side.
Q395.
What is the difference between performance center and controller ?
Answer:
|
Performance
center
|
Controller
|
|
1.
PC is web interface of the controller
2.
we can book the slot to execute the test.
3.
we can download the scripts and also .lrr files where ever we are.
|
1.
controller is stand alone machine.
2.
we can not book the slot to execute the test.
3.
Not possible to download .lrr file.
|
Q396.
How you will convince the client to do performance testing of the
application?
Answer:
Once
the application deployed in the production the total business of the
client depends on that particular client application. If any
unexpected things like suddenly huge amount of load will fall on the
application might be the chance to crash the application at that time
the client business may loss. This issue becomes the major issue to
the client. So we have to tell about the signification and the need
of the performance test and what happens if we didn't conduct the
test to the client.
Q397.
Why we need to create rules?
Answer:
The
clients are identified that few of the dynamic values are common
across the technologies like user id , token id , session id etc. For
each and every time to correlate dynamic values which are having
common boundaries take some time. To avoid this we are going to
create rules.
If
we created a rules , when ever the boundaries were matched
automatically the dynamic value will be correlated.
Q398.
Is it possible to exchange the rules?
Answer:
Yeah
, possible. Once we crated a rule , the rule will be saved with
extension as “.cor”.
So
we can share this “.cor” file either in between the scripts or
in between the peers.
Q399.
How to generate the auto text verification functions for all the
requests?
Answer:
To
generate auto text verification functions enable the option auto text
verification under advanced option in the recording options.
Q400.
How to regenerate the script once the the script was recorded?
Answer:
To
regenerate the script hit on recording option and choose regenerate .
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