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

how to update asingle record in adabas? by using GET, can we do a single record updation?

Satyam,

1 5133

which are the parameters mandatory in job card ?

Accenture,

4 8098

How to copy VSAM files without using REPRO

ADP,

3 8850

is step name is compulsory in jcl ?

2 7087

I have put two write operations in a single para for two different conditions.Will that lead to an abend or run successfully and write two records?

CTS,

1 6096

Is it possible to access some memory location (Ex: VAR1 DS P) without using Base Displacement?

HCL,

1 3866

What is symbol table in assembler?

HCL,

2 5830

Suppose we have 5 steps in a job.No step should be executed After submitting every step in a job

AVB, IBM,

2 6155

query to just fetch first matching row and stop execution. once one matching row is found ..no more records should be checked.. if the first record is matching.. the query must stop

IBM,

2 5655

What is the maximum Key length of a KSDS dataset

2 5087

What is dummy parameter in JCL??

TCS,

3 7965

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Mphasis,

1 5094

i want new rexx tool which will perform jcl chk without submitting it

2185

How to recover a deleted source physical file from library?

HCL,

1 4125

If we put three reads in COBOL in the same para one after the other, to read a PS file,will it read the same record thrice or it will read three records sequentially? For example : Input File 01 02 03 Para 900 Read infile Display Infile rec Read infile Display infile rec Read infile Display infile rec. What will be the output?

2 5467

Un-Answered Questions { IBM MainFrame }

What are the information stored in ci?

1073

I need to compare 3 variables(dates) and do some processing based on the earliest date. There could be more then 1 date record in any of the 3 fields. What is the best way to code this?

2340

What is the difference between cursor stability and repeatable read isolation levels?

1249

how to get the last record in vsam file in cluster? And how can u get the ksds file records into ur cobol program?

1027

When you are obtaining next within a set and get a end of set return code, on what record are you now current?

1504

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

2554

Explain how many exceptional condition can be given in a handle condition?

1070

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

2376

What is the pic clause for the hhmmss type of data fields?

1011

What is copy pending and check pending in db2?

1062

Explain how do you terminate an already issued delay command?

1054

What is adabas?

1101

How can unused space allocation be returned to the system when a dataset is closed?

1576

define the field with ic in the bms map.

1185

How you can characterize tables in cobol?

1261

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