IBM MainFrame Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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IBM MainFrame Interview Questions

Questions Answers Views Company eMail

Define gdg?

1034

Explain the difference between lds and esds?

1094

What are the different versions of gdg named?

1054

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

974

How do you calculate record size of an alternate cluster?

1207

Explain the biggest disadvantage of using a vsam dataset?

1101

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

1383

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

1324

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

1267

What are the 4 fields in dd statement?

1339

Explain the purpose of the dd keylen parameter?

1216

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

1207

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

1223

Explain the function of the steplib dd statement?

1187

Explain how can a jobs execution priority be modified?

1268

Un-Answered Questions { IBM MainFrame }

What happens if both JOBLIB & STEPLIB is specified ?

1209

How to find the UNIT and VOLUME of a (a) KEPT (b) UNCATALOGED and (c) CATALOGED dataset - using (i) JCL and using (ii) ISPF ?

2741

How is record management performed in vsam?

1225

How do you get the data to code the BMS macro?

2016

Suppose I have five jobs to do. But I want to hold one?

1184

What are the error (ONCODES) codes did you encounter in PL/1 programme?

2976

What is innodb buffer pool?

1145

What is the pcp in the cics?

986

What is drop table?

1073

I have File 1 occurs 5 times with Employee-ID,Employee-Name,Employee-Dept (EEE and MECH). I have File 2 occurs 10 times with Employee-ID,Employee-Name,Employee-Dept (EEE,CIVIL,CHEMICAL and MECH). In FIle 1 and FIle 2 , for matching Employee-DEPT (Only MECH) , we need to move entire records from file1 to file 2. We should not use 2D array. Your help is needed here.

1637

Explain about different table spaces.

1157

Define check constraint.

1135

how can we repair a soc-7 error?

1089

How to Get Information About the Tables?

1752

What are different data types in cobol?

1399

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