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 is the difference between COMP & COMP-3 ?

2 30927

What was removed from COBOL in the COBOL II implementation?

2127

What will happen if you code GO BACK instead of STOP RUN in a stand-alone COBOL program i.e. a program which is not calling any other program ?

3 15643

How many sections are there in data division?.

Amdocs, TCS,

10 28352

What is the difference between NEXT SENTENCE and CONTINUE?

Mphasis,

2 14243

Can you REWRITE a record in an ESDS file? Can you DELETE a record from it?

ABC, IBM, Mphasis, Wipro,

6 26953

What is the maximum length of a field you can define using COMP-3?

Complex System, Infosys,

4 37465

How do you define a variable of COMP-1? COMP-2?

3 18122

What is the difference between comp and comp-3 usage? Explain other COBOL usage?s.

IBM, Xansa,

3 37270

Explain the difference between an internal and an external sort, the pros and cons, internal sort syntax etc.

3 13483

What do you feel makes a good program?

2 6301

What are the different data types available in COBOL?

4 11375

Can JUSTIFIED be used for all the data types?

3 10814

What is the linkage section?

4 9920

What is Static and Dynamic linking ?

3 11325

Un-Answered Questions { IBM MainFrame }

Differentiate between addressing mode and run mode.

1070

Explain how can the submitting users racf authority be overridden in a job stream?

1124

Explain the difference between dfhcommarea and tsq?

1086

which cics service transaction is used to gain accessibility to cics control tables? Mention the one that has the highest priority.?

1180

What is dbrm library?

1044

Explain difference between read work file 1 and read work file once? Why we are using work file once?

954

what are the secirity tools in mainframe? and let me know about the other tools and the uses of thst immediatly................

2325

How can tablespace be moved to another dasd volume that is allocated for that tablespace?

1231

what is the purpose of coding notify parameter in job statement?

1157

What are storage attributes of records?

895

difference between tsq and tdq?

1204

what methods are available for persisting records in an idms database?

828

What is db2 command?

1028

What's The Percentage Free Space ?

1222

i want to maintain uniqueness on pdf without make lf??????????

2151

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