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,

2952

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

Steria, Wipro,

1 5140

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,

2760

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

IBM, TCL,

1 13145

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,

4067

What is the diff between abinitiorc and .abinitiorc files ?

IBM, Infosys, TCL,

1 17037

11. What is the use of allocate()?

TCL,

1 2907

. What is dynamic lookup ?

CTS,

1 3794

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

HCL,

3 10725

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

HCL,

1 3305

What is dependent parameter ?

HCL,

1 3998

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

HCL,

1 5695

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

HCL,

1 4735

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

HCL,

1 5972

Layout - L1*, L1 - What is the difference

3 9274


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Un-Answered Questions { Ab Initio }

What are the different types of partition components in abinitio?

133


What dedup-component and replicate component does?

146


What is the difference between formal and export parameter? Export at what secenario we are going to use?

1622


Explain what is de-partition in abinitio?

142


What the difference between “look-up” file and “look is up” in abinitio?

185






Have you ever encountered an error called “depth not equal”?

126


Have you worked with packages?

142


What is publickey and private key?what is the use of this two keys?

1769


Describe the process steps you would perform when defragmenting a data table. This table contains mission critical data?

126


What is the difference between look-up file and look-up, with a relevant example?

150


can we perform checkin and checkout through sandbox?

143


What are the different forms of output that can be obtained after processing of data?

158


What are the six data process products of ab initio (architecture of ab initio)?

123


Suppose we assign you a new project. What would be your initial point and the key steps that you follow?

135


Describe the grant/revoke ddl facility and how it is implemented?

139