Answer / santosh kumar

Hi preeti, the given scenario is not a valid scenario.I am
explaining you in deatil.The Grade respective to the score
will not valiadte.It will be like this

1)90-100---A
2)80-89----B
3)70-79----C
4)Else-----F

OR it can be 91-100----A
81-90-----B
70-80-----C
Else---F
And the boundary value analysis for this Object(0-100)
1)Min(0)-----Pass(0)F Grade
2)Max(100)---Pass(100)A Grade
3)min(+1)----Pass(1)F Grade
4)Max(-1)----Pass(99)A Grade
5)Min(-1)----Fail(-1)F Grade
6)Max(+1)----Fail(101)F Grade

for each validation user should have to write 6 test cases
Total validation above mentined 4 condtions so, (4*6)=24
test cases will occur.
For example considering first case:90-100(for grade A)

1)Min(90)-----Pass(90)A Grade
2)Max(100)--- Pass(100)A Grade
3)min(+1)---- Pass(91)A Grade
4)Max(+1)---- Fail(101)F Grade
5)Min(-1)---- Fail(89)B Grade
6)Max(-1)---- Pass(99)A Grade

Answer / abdul sameer

Hi Preeti whenever you come across such questions in
interview we need to draw a flowchat for the asked scenario
and then decide how many High level test cases can we come
across, we have some topics which covers how many test cases
can be written for each and every flow , this is not an
ordinary question this is the question which they ask for
certification level.

Here is the flow for your answer


_________
| start |
|_______|
|
_________
| Score |
|_______|
|
/ \
/ \ Yes ________
/ 90- \ _____________ | "A" |___
\100 / |_______| |
\ / |
\ / |
| |
| No |
| |
/ \ |
/ \ Yes ________ |
/ 80- \ _____________ | "B" |___|
\ 90 / |_______| |
\ / |
\ / |
| |
|No |
| |
/ \ |
/ \ ________ |
/ 70- \ Yes__________ | "C" |___|
\ 80 / |_______| |
\ / |
\ / |
| |
|No |
____|____ |
| "F" | |
|________| |
| |
____|____ |
| End |___________________________|
|________|

The above flowgraph explains the scenario which you have said
Now obverse that from this scenario we can see that if
90-100 condition pass we get Grade "A"
if 80-90 condition pass we get Grade "B"
if 70-80 condition pass we get Grade "C"
else we can see "F".

So if we check then there wil be exactly "4" High level test
cases. I need to leave now I will explain in other time
continuine this answer.

Answer / ni

The answer given by Santosh Kumar is correct.
PLease include that for each and every case u need to check
the go button action also.

Answer / saff

i would answer such question
like

i will first test teh gui of the screenn that score and
grade and go button are in right place and there are
correctly named
then i will go for the functionality by giving various
values in the score filed (using bvt technique i will
minimize the input to be given in the filed score ) and
clicking on go and checking grade (accordning to the req
docment) field then i

Answer / madhu

Higher level scenerios :

If the score is 90 to 100 - grade A
If the score is 80 to 89 - grade B
If the score is 70 to 79 - grade C
If the score is 0 to 69 - grade F

your answer was correct only.

Answer / chandu

Hi Preethi,

checking BVA is secondary, first we need to find out the
High Level Test case. what he is asking..

So here we can say one test case. which is functionality
test case,
when user clicks on the Go button, weather it is giving
write message(grade) or not,
and i want to say one more thing for all, for checking BVA
we need Low Level Document(mandatory), then only we will go
for BVA. without having LLD, don't even think about the BVA.

Answer / mayur k

Answer given is right. Only thing is approach. Now What does
High level test cases means. If U clerify and is High
priority then u should go with Boundary value.
Again different approaches are there. If Interviewer wants
-ve test cases (As for tester high level means test cases
which will cause system unfunctional).

Answer / alpr95

so it means the q was tricky, he was looking that I will
point out these things or not as a tester.
But these are all BVA right.We can check functionality
also. Is it correct or not?

Answer / santosh kumar

yaa qestion was tricky,as u r saying we can check
functionality its fine we can apply BVA for Text box but
here system will fail at the value 80 and 90.For this
scenario atleast two bug will definetly occure at the value
80 and 90.

Answer / less than you

Good explanation !! almost the same question was asked to
me but it was about three combo fields "country","state"
& "city" and I was asked to create the scenarios. I replied
but without folllowing any methodology. Can you help me to
explain those scenario?

1. Write configuration tests for a web based application. 2. How does a plane turn on ground? Explain with logic. 3. How would you test the volume control for a music system? 4. You have been given an application and you have only 15 mins to test the application. How would you do the testing? 5. Your machine, which is on a network has been disconnected. How you debug the problem? 6. What is the sum of numbers from 1 to 1000? 7. What is the probability that on rolling four dices same number appears on all dices? 8. You have been given 8 identical balls out of which one of them is heavier. How would find the heavier ball in the least number of tries with the help of a balance? Explain 9. There is a disc which has been painted half black and half white. You have been given sensors which could detect white or black colors. The disc is revolving in either clockwise or anticlockwise direction with variable angular speed. Find the minimum number of sensors required to determine the direction of rotation of the disc. 10. 64,54,42,31,20 which number does not fit in the series?

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