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

Can we change a FB file to VB file in JCL? Please help

1 1837

write a cobol logic. i have file that has 10 records .1 record go to first output file and second record goes to 2 output and etc

1225

Which is not true about evaluate statement

2451

i have 10steps and i want run step3 and based on step3 i want execute step7,8,9,10?in jcl

1 2351

How to empty the records in jcl

1 1495

INREC AND OUTREC? HOW TO SPLIT 5K RECORDS TO DIFFERENT FILES IN A FILE IN COBOL? RESTART IN COBOL-DB2? ISOLATION LEVELS?

863

What is DYNSLT keyword? How do you perform selection using DYNSLT

1 1601

How can we read records for specific member in CL? AND rpg?

694

How can we retrieve the total number of records in RPG & CLLE?

651

2 input fles: 2 flat files, with different number of records. both are having unique key for each record and already sorted in ascending order . match these files using unique key and in output only matching key value has to be written. please procide cobol logic

2590

How to fetch 1000 error records from VSAM file(Eg: 1000000 records present) while getting SOC7 abend ?

2466

How to traceback if I am getting SOC7 or SOC4 abend? List down the steps

5371

Step 1 RC 4 Step 2 Step 3 I want to know the COND parameter which can be coded in step 2 or 3. Step 2 should be executed based on Step 1 RC and Step 3 should not be executed based on step 1's RC

4898

What is one line to pass PARM from JCL to COBOL?

4953

Un-Answered Questions { IBM MainFrame }

How are the next sentence and continue different from each other?

1291

What is the function of linear dataset in vsam?

1069

What are the common cics service programs and explain their usage?

1026

Explain the function of job statement in jcl?

1208

Explain the biggest disadvantage of using a vsam dataset?

1036

How does a cursor work?

982

For a db2 column that is being defined as decimal (11, 2), discuss the cobol picture clause.

1100

What is the mainframe testing? Categorize the mainframe manual testing?

955

Explain associator in adabas?

856

What are the different data types in cobol?

1432

How to override a dsn that is contained in a proc called by another proc? I need to do the override in the calling jcl?

1154

Can you explain common systems area?

1098

Differentiate between hdam and the hidam databases?

1028

What is defragmentation and what is its advantage?

1279

What is explain plan in db2?

983

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