Interview Questions Answers in Unix General, Informatica

Question { Accenture, 8560 }

how to find multiple string?

Answer

fgrep 'searchstr1 | searchchstr2' file.txt

Is This Answer Correct ?

9 Yes

6 No

Question { Accenture, 23752 }

how do display only hidden files in unix?

Answer

ls -a|grep "^\."

Is This Answer Correct ?

63 Yes

6 No

Question { Accenture, 23752 }

how do display only hidden files in unix?

Answer

He wrote correct answer(2).who stupid given "NO".
Before giving "no' u should check correct or not .

simply don't tell 'NO'

Is This Answer Correct ?

6 Yes

12 No

Question { Patni, 7169 }

in realtime which situations u can use unconnected lookup
transformation

Answer

When we want to get single return port and also we can call
this any where in the mapping.

Is This Answer Correct ?

11 Yes

1 No

Question { TCS, 20100 }

Can we run session without using workflows?

Answer

Ya, Its Possible using pmcmd Command without using the
workflow Manager run the group of sessions.

It is possible to run two sessions only (by pre-session,
post session) using pmcmd without using workflow. Not more
than two.

Is This Answer Correct ?

2 Yes

4 No

Question { HCL, 6797 }

i want to convert below src into target

src is as follows
maths 30
science 20
social 81

i want data in trg like below

maths science social
30 20 81

Answer

Use Normalizer t/r, it convert column into rows,row into
columns.

Is This Answer Correct ?

2 Yes

11 No

Question { TCS, 10109 }

which is better perfomancewise lookup or joiner and why?can anyone give example?

Answer

Give the perfect solution.Every knows what told.

Is This Answer Correct ?

0 Yes

0 No

Question { iNautix, 19593 }

How do we eliminate duplicate records in a flat file without using Sorter and Aggregator?

Answer

we can achieve this by using first value or last value in lkp properties.

Is This Answer Correct ?

0 Yes

0 No

Question { TCS, 13582 }

Can we create out put ports in source qualifier t/r?

Answer

We can't create any output ports in source qualifier transformation.If you create any o/p port then you willget error message like...mapping is invalid.

Is This Answer Correct ?

19 Yes

9 No

Question { Cap Gemini, 7814 }

i have source file data empno,ename,sal 100,ram,1000
200,tyu,2000 300,gh,3000 out put as e
empno,ename,sal 100,ram,null 200,tyu,1000 300,gh,2000 how to load it?

Answer

question is not clear

Is This Answer Correct ?

2 Yes

0 No

Question { Cap Gemini, 11996 }

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how to load records between two stars(*),

Answer

By using filter transformation we can achieve this scenario.

Filter condition :column>=4 and column name<=6

Is This Answer Correct ?

4 Yes

14 No

Question { 6100 }

Can we make worklet inside worklet?

Answer

Yes

Is This Answer Correct ?

3 Yes

1 No

chandra sekhar