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

what is address space in mvs?

IBM,

1 3054

how to send a sms to a mobile through mainframe mvs?

IBM,

1241

How many register we are using in mvs?

IBM,

1095

what is pdes?

IBM,

1169

what is the facility that allows mainframes to be partitioned into lapars? A.z/os b.pr/sm c.vitual storaged.coupling facility

IBM,

1260

what is swap-in and swap-out?

IBM,

1162

what is the size of the address space in kbs for 16 bit address space?

IBM,

1166

how to define a directory and what is the structure and definition for the same?

IBM,

1133

what is the panel name of ispf primary option menu?

IBM,

1216

what is the syntax of ams modal commands?

IBM,

1339

what how do you initialize a vsam file before any operation? A vsam with alternate index?

IBM,

1072

what are the different types of vsam files available? Explain them

IBM,

1 1932

if you wish to use the rewrite command how must the vsam file be opened?

IBM,

1215

what is the purpose of the verify function of idcams?

IBM,

1108

how do you create an alternate index ?

IBM,

1129

Un-Answered Questions { IBM MainFrame }

Can you explain control variable in online screens?

1037

What is the use of dclgen in db2?

1142

What is the eib?

1084

How many module come in Ibm framework?

2042

What is the difference between nvl and coalesce?

1116

What is the difference between ooRexx and IBM's Object REXX for Windows?

1149

How to compare data between two tables in db2?

1147

What is a cics task?

1125

What is bind in db2?

1107

Can you define an alias?

1013

Explain the benefits you can get from mainframe connect?

1026

We can allocate memory dynamically by using GET MAIN command my question is at what scenario we can't release this memory and reuse this same memory??

3324

Give certain situations where NEWCOPY is obligatory?

1162

how do you reference the fixed unblock file formats from cobol programs

1316

What is linkage section?

1030

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