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?

1140

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?

1231

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

1217

What are the 4 fields in dd statement?

1275

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?

1156

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

1179

Explain the function of the steplib dd statement?

1137

Explain how can a jobs execution priority be modified?

1204

Un-Answered Questions { IBM MainFrame }

What is a configuration management system, give examples?

1026

What is the reason behind not using select * in embedded sql programs?

1115

Is it slower if you access a record through alt index as compared to primary index?

1022

What is the comaera?

1259

Can we delete records from view?

967

Which Search verb is equivalent to PERFORM…VARYING?

1043

What is a set in idms? What pointers are required, what are possible? How may sets be ordered?

864

What is sqlca’s maximum length?

1192

How many registers we are using in mvs?

1201

What are the parameters that are used in creating a gdg?

1221

How To Compile The COBOL-BD2-CI CS Programs In Real TIme? Please Give Me the Detailed Description?

6755

how do you code a null statement?

1345

What is meant by deadlock in db2?

1255

what JCL Procedures?

1254

Tell me abt any another framework which is challening for Ibm framework

2104

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