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

Explain the system transid cemt?

1054

Explain the function of the load command?

1077

Explain what is the massinsert option?

1039

Define an asra?

982

How can you use dynamic calls in cics?

1021

What are the some important fields in the eib block?

1101

What is task control?

1099

Explain how do you access the records randomly in tsq?

1061

Explain the thress bms options?

970

Define an aica abend?

1056

What is the meaning of the deq command?

1101

Explain the difference between exec cics handle condtion and an exec cics ignore command?

1000

Name the cics command used to access current date and time?

1080

Explain the difference between a physical bms mapset and a logical bms mapset?

958

Explain the difference between intra partition tdq and extra partition tdq?

963

Un-Answered Questions { IBM MainFrame }

Following a db2 update statement, what is the quickest way to compute the total number of updated rows?

1028

What is the default value(s) for an initialize? What keyword will allow for an override of the default?

1083

Explain the difference between a symbolic map and physical map?

1003

Explain how many work file we can code in jcl?

939

Mention one alternative aspect of CICS?

1039

Explain dclgen.

1157

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

1297

What is the difference between hidam and hdam databases?

926

How are you going to remove duplicates from the file that is being read?

945

What is a vsam dataset?

985

Explain how can a stopped job be started again?

1098

What is deadlock in db2?

1037

Name and explain the three location modes?

1323

What is buffer pool?

1050

how can you copy to a vsam cluster?

1086

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