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 DIFFEENCE BETWEEN PDS AND PDES? STEPS BEFORE MERGING? DUMMY DATASET USES? DIFFERENCES BETWEEN IDCAMS AND ICETOOLS? DIFFERENCE BETWEEN ALL JCL UTILITY TOOLS?

HCL, IBM,

4 12796

how i can enter into cics region in real time.

Cap Gemini,

2 10318

After execute the map, What will happen ? Give breif Description

HCL, IBM,

4 9848

How do find length of the cursor in cics map ?

HCL,

3 9577

can we declare s9(9)v9(9) in cobol ? if yes how many bytes it will occupy ?(urgent plz answer it)

CTS,

13 37143

can any one tell "in esds in what structure records will stored?"

1 4276

how can we convert esds to lds?

2 6115

How many maps are create in a single mapset?

5 13747

what is the use of reuse in vsam?

3 14554

What is difference between copy and include?

6 18359

01 xxx pic 9(4). 01 yyy pic 9(6). move 123456 into yyy. move yyy to xxx. display yyy. what would be the value of yyy

HSBC,

13 37137

can you please let me know if there is any walkins for COBOL/PLI/DB2/IMS/JCL in pune other than IBM and ITC infotech

2499

how GDGs are concatinated?

HSBC,

4 9532

Using DELETE what type of file can you delete? a)SEQUENTIAL FILE B)INDEXED FILE C) D) Some options were there..i cant remember

HSBC,

3 9056

in step1 of a jcl,disp=(mod,delete,delete) step02 exec pgm=ccc,cond=(0,le) will step02 be executed? i)never ii)always iii) iv)... i dont remember options

HSBC,

4 10483

Un-Answered Questions { IBM MainFrame }

How many maximum base registers we can have in a single program?

1180

What is a Foreign Key?

1145

Can we delete records from view?

1026

What is the main function of linear dataset?

1150

When The Define Jcl Is Not Available, How Can You Get Information About A Vsam File's Organisation ?

1267

In sms datasets, what is the function of the dd avgrec keyword?

1164

How dummy is used in jcl?

1207

Write the code to count the sum of n natural numbers.

1259

How to create 1 ddm that fetches 3 adabas files simultaneously?

991

How do you select a row using indexes in db2?

1178

How to receive data passed through jcl parm parameter in a natural program?

1046

before altering a table is it necessary to lock ? if lock what is it ? how to do ? ifi want to lock a table what is that command ?

2230

What is the maximum number of pcbs allowed in a psb?

1024

Define communication area?

1053

How can unused space allocation be returned to the system when a dataset is closed?

1571

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