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

Define gdg?

990

Explain the difference between lds and esds?

1034

What are the different versions of gdg named?

991

Explain the device independent method to indicate where a record is stored?

921

How do you calculate record size of an alternate cluster?

1138

Explain the biggest disadvantage of using a vsam dataset?

1045

Explain how can return codes be tested before execution of a job step?

1329

Explain how can values be passed from the job stream to an executable program?

1230

Explain how can the attributes of one sms dataset be copied to another dataset?

1215

What are the 4 fields in dd statement?

1272

Explain the purpose of the dd keylen parameter?

1169

Name the parameters which can be used to limit the number of records written to a sysout dataset?

1155

Name the statement which can be used to send data to another mvs jes3 node?

1177

Explain the function of the steplib dd statement?

1135

Explain how can a jobs execution priority be modified?

1204

Un-Answered Questions { IBM MainFrame }

what are the six different type of argument values in cobol that can be placed in various options of a cics command?

1279

how could you write a program in a structured format?

994

What are literals?

1136

How is the record format of an output dataset specified?

1160

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

999

How can you do the explain of a dynamic sql statement?

1069

What is a page in idms?

866

I HAVE A VB BLOCK WHICH IS USED AS INPUT IN COBOL CONATINING SOME RECORDS CAN I CHANGE THE FILE FROM VB TO FB?

2562

Mention the guidelines to write a structured cobol program?

1095

please..could u give an example about USAGE IS POINTER ..and explain why and when we use it ?

2472

What is meant by mpp mode?

1105

in order to execute step2 a job after a return code of 8 in step1, what condition you will code in step2?

2708

How to resolve deadlock issue

20133

How do you submit a job for execution?

1111

What is the default page size of buffer pools?

1122

For More Un-Answered { IBM MainFrame } Questions Click Here