MainFrame Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

IBM MainFrame (5234)
IBM AS400 (1355)
IBM PL/1 (31)

MainFrame Interview Questions

Questions Answers Views Company eMail

In SYMBOLIC Cursor Positioning after moving -1 to the length field also the cursor is not positioned in that particular field. Give reasons?

IBM,

2 6313

What is the command used for receiving a map from a terminal?

1 4492

What are the commands used to gain exclusive control over a resource (for Ex a Temporary storage queue.)?

3 8025

Why must all CICS programs have a Linkage Section ?

4 17052

What are the attribute values of Skipper and Stopper fields?

1 18839

What are the two ways of breaking a CPU bound process to allow other tasks to gain access to CPU.

Patni,

3 8914

What is a two Phase commit in CICS?

IBM,

2 23892

How are VSAM files Read in CICS pgms?

IBM,

4 14665

Which transient data queue supports ATI?

2 8346

What is a mapset?

2 6775

What is the difference between physical map and symbolic map?

IBM,

3 11654

How do you rollback data written to an ESDS file?

IBM, Infosys,

1 10552

What is meant by a CICS task?

4 9848

Explain the means of supporting pseudo conversation programming. (E.g. Storing and restoring of states)

2 6437

What is the significance of RDO?

IBM,

1 9701

Un-Answered Questions { MainFrame }

what happens in conversion stage in job processing?

1279

Explain how can return codes be tested before execution of a job step?

1381

What is cobol db2?

1052

What is the purpose of disp parameter?

1180

What are fillers?

1105

What are union and union all?

1042

How to remove the spaces at end of each record in the output file Via COBOL program? note: The file has a VB length ----TRY

1441

Explain how can a stopped job be started again?

1185

How vsam files are read in cics pgms?

1363

Why do we bind in db2?

1282

What are steplib and joblib?

1229

What is rmode(24)

1199

what is pdes?

1169

how can the same proc be re-used and called by many jobs?

1570

Can you explain dfheiblk?

1150

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