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

COBOL (1072)
JCL (1031)
CICS (755)
DB2 (1122)

IMS (143)
IDMS (107)
Natural (81)
ADABAS (26)

REXX (60)
Assembler (68)
CLIST (6)
QMF (32)

MVS (25)
OS390 (10)
OS 2 (7)
VSAM (319)

IBM 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 23891

How are VSAM files Read in CICS pgms?

IBM,

4 14665

Which transient data queue supports ATI?

2 8346

What is a mapset?

2 6774

What is the difference between physical map and symbolic map?

IBM,

3 11653

How do you rollback data written to an ESDS file?

IBM, Infosys,

1 10552

What is meant by a CICS task?

4 9847

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 9700

Un-Answered Questions { IBM MainFrame }

Why do we use cursor?

1166

What is the maximum of key fields and search fields allowed in a segment?

1051

Define predicate?

1204

What is the significance of addrspc parameter in the exec statement?

1138

List the various advantages of using jcl language?

1526

What is inspect?

1060

How errors are handled in CICS programs?

1172

What are the different dataset organizations used in vsam?

1058

What is a page in idms?

920

what is the difference between COBOL2 AND COBOL390?

3119

What is the difference between next sentence and continue in cobol programing language?

1278

What is the use of mdt (modified data tag)?

1105

What are bind parameters in db2?

1102

Explain foreign keys?

1080

how are start and xctl different?

1015

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