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Ab Initio Interview Questions
Questions Answers Views Company eMail

How can you SORT an already partitioned (round-robin) data ? How to use in abinitio graph? 3. How internally partition by key decides which key to send in which partition ? How to use in abinitio graph? 4. What is PDL ? Give him a shell type parameter and ask him to convert it to PDL. How to use in abinitio graph? 5. As shell type parameters are not supported by EME, then how you can use shell type parameter (If you don't want to use PDL) without hampering lineage diagram ? How to use in abinitio graph? 6.How you can generate dml from a COBOL copy book ? How to use in abinitio graph? 7. How you can convert from ebcdic to packed decimal ? How to use in abinitio graph?

HP,

3279

What is regex (lookup)? When you should use it? How to use in abinitio graph?

Steria, Wipro,

1 5914

Why creation of temporary files depends on the value of MAX CORE ? How to use in abinitio graph? 10. What is the diff between abinitiorc and .abinitiorc files ? How to use in abinitio graph? 11. What is the use of allocate()? How to use in abinitio graph? 12. What is use of branch in EME ? 13. How you can break a lock in EME ? How can you lock a file so that only no one other than EME admin can break it ? How to use in abinitio graph? 14. When you should be using ablocal() ? How you can use ablocal_expr? How to use in abinitio graph? 15. Why you should not keep the layout as 'default' for input table component ? How to use in abinitio graph? 16. What is dynamic lookup ? How to use in abinitio graph? 17. What is dependent parameter ? How to use in abinitio graph? 18. What is BRE ? (Business Rule Environment - This is a recent addition in abinitio package) How to use in abinitio graph? 19.What is output index ? How to use in abinitio graph? 20. How you can track the records those are not getting selected from ‘select’ in reformat component ? How to use in abinitio graph? 21. Can we have more than one launcher process for a particular graph ? How about agent ? How to use in abinitio graph? 22. There are lot of new fuctions added in 2.15 , you can ask about them ? How to use in abinitio graph? 23. How can you run multiple instances of a graph in parallel? How to use

Wipro,

3046

In which scenario, .rec files will not get created even if graph fails ? How to use in abinitio graph?

IBM, TCL,

2 14158

46.How you can create cross joined output using join component ? 47.What is the default layout of watcher files ? How to use in abinitio graph? 48.Why you get 'too many open files' error ? How to use in abinitio graph? 49.What is the significance of vnode folder under AB_WORK_DIR ? How to use in abinitio graph? 50, What is the significance AB_AIR_BRANCH? How to use in abinitio graph? 51. How can you select only unique records from a set of records ? How to use in abinitio graph? 52. How next_in_sequence work in parallel layout ? How to use in abinitio graph? 53. Why you want to set a modest number in limit ? How to use in abinitio graph? 54. How you can encrypt a password and use it in dbc file? How to use in abinitio graph? 55. Which function you should be using if you do not want to process non printable char from a feed file ? How to use in abinitio graph? 56. How you can run a component for certain conditions ? How to use in abinitio graph? 56. What is catalog and when you should use it ? How to use in abinitio graph? 57. How you can use reformat as a router ? How to use in abinitio graph? 58. How many process gets created for a n-way parallel component ? How to use in abinitio graph? 59. Why delimited DMLs take more time to process than fixed length DMLs? How to use in abinitio graph? 60. How can you select only first and last record from a file without using next_in_sequence? How to use in abinitio graph? 61.Why you should always keep largest input as driving input for Join ? How to use in abinitio graph? 62. What a catalog file contains ? How to use in abinitio graph? 63. What Is private project and public project ? How to use in abinitio graph? 64. Why you should not use checkpoint after replicate ? How

Accenture, Mind Tree,

4416

What is the diff between abinitiorc and .abinitiorc files ?

IBM, Infosys, TCL,

1 19398

11. What is the use of allocate()?

TCL,

1 3441

. What is dynamic lookup ?

CTS,

1 5956

What is regex (lookup)? When you should use it?

HCL,

3 11785

Why creation of temporary files depends on the value of MAX CORE

HCL,

1 3780

What is dependent parameter ?

HCL,

1 4521

What is the significance of record required indicator of Join component ?

HCL,

1 6194

. What is flow buffering ? How it reduces the chances of having deadlock ?

HCL,

1 5455

When we should use 'jobid' for commit table (Output table component??

HCL,

1 6474

Layout - L1*, L1 - What is the difference

3 9958


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Un-Answered Questions { Ab Initio }

List out the file extensions used in abinitio?

300


Have you worked with packages?

296


Input Data: AAABBBCC CCAAABB expected output A3B3C2 A3B2C2 How can I achieve this in Ab initio? where In output count of occurrences should be sorted from high to low

224


What are the different types of parallelism in ab initio?

297


What will be the output when a file with 0 records is connected as input to a reformat and an output file? Note that in reformat we have assigned hardcoded values to output columns.

27






What are the different types of parallelism used in abinitio?

286


What are the reasons for which business can trust the approach of data processing?

275


How to find the project(pub,priv,common,client) in between public, Private,common?Any identification?

1277


Mention what are the different types of parallelism used in abinitio?

281


What are the benefits of data processing according to you?

309


Explain what is the architecture of abinitio?

302


Suppose you find the term validation mentioned with a set of data, what does that simply represent?

291


How do you improve the performance of a graph?

315


Give one reason when you need to consider multiple data processing?

276


How transaction file different from that of a sort file?

441