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

What's a LDS (Linear Data Set) and what's it used for?

Cap Gemini, Steria,

1 18811

What is IDCAMS ?

2 8399

Can AMS commands be run from the TSO prompt ?

IBM,

1 6219

Syntax of AMS modal commands ?

IBM,

1 7401

Under IDCAMS , multiple functions can be executed, each of which returns a cond code. What will be the condition code returned to the operating system ?

IBM,

1 5754

What is Control Interval, Control Area?

1 5142

What is FREESPACE ?

2 6222

How do you decide on optimum values for CI, FREESPACE etc...?

1 4705

Would you specify FREESPACE for an ESDS?

1 7724

What is SHAREOPTS ?

2 8146

What is the meaning of each of the values in SHAREOPTS(2 ?

1 6197

How do you define a KSDS ?

IBM,

1 6584

How do you define an ALTINDX ? How do you use ALTINDXs in batch, CICS pgm?s ?

IBM,

2 7403

Using Alternate Indexes in Batch pgms: ?

IBM,

2 8351

Using Alternate Indexes in CICS pgms: ?

1 9367

Un-Answered Questions { IBM MainFrame }

Are view updateable?

1100

Explain the data storage?

1067

Write a cobol program making use of the redefine clause.

1231

how do you define an altindx ? How do you use altindxs in batch, cics programs?

1125

What does a cics translator do?

1491

What does the 'cebr:cics' transactions do?

1085

how do you code a null statement?

1389

Can you define aica abend?

1220

What is the use of predicate?

1097

What is an mdt (modified data tag)?

1105

I have mainpgm(abc) this is the only cobol pgm(non-db2).And this pgm calling subpgm name "acd" this also only cobol(non- Db)and this pgm calling some other subpgm this pgm has cobol-db2 pgm. 1) IF you calling static mode how to run and how to compile? 2) IF you calling dynamic mode how to run and how to compile? plz suggestion me.

2679

What is the function of logging in the db2 database?

1180

what are the differences between temporary storage queue (tsq) and transient data quene (tdq)?

1272

What is the place for VSAM KSDS?

1161

Highlight the points of differences between XCTL and START?

1331

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