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

Which COND paramter will u use to execute the step only if the previous step does not execute

BoA, HSBC,

3 7750

How to delete AIX ? i) IEBGENER ii) IDCAMS iii) PURGE iv) All of the above

HSBC,

3 9981

what will be the error code if duplicate key of VSAM file is found?

HSBC, Kings,

1 7415

how many bytes timestamp token occupies?

Boss Global, Cap Gemini, TCS,

6 15653

01 var1 pic x(10) 01 var2 redefines var1 pic 9(10). then in procedure division move 'abcde' to var1 then waht is the value of var1 and var2

HSBC,

9 14672

what are the steps to sort in a cobol program?

Patni,

2 5576

how will you define vsam file in select clause?

Patni,

3 8524

whats the difference between search and search all?

Patni,

4 7261

can you declare redefine in level 01?

Patni,

8 18843

using redefine can you redefine lower variable size to higher variable size?

Patni,

3 8037

if you code move high-values to variable,can you move it into numeric variable or alphanumeric variable?

Patni,

1 7537

when COMP-3 is preferrable?

Patni,

3 8290

whats the disadvantage of search all over search?

Patni, TCS,

4 9173

why do u need inspect verb?

Patni,

3 7859

whats the difference between empty and noempty of GDG?

Patni,

4 13532

Un-Answered Questions { IBM MainFrame }

What is the difference between comp and comp-3?

1183

What are the types of processes to create a map in cics?

1046

Explain the difference between lds and esds?

1030

write a jcl to execute a job by 7:00 am on jan 20,1986?

1112

What is the purpose of relative record data set used in vsam?

1093

Explain the difference between a package and a plan. How does one bind 2 versions of a cics transaction with the same module name in two different cics regions that share the same db2 subsystem?

1030

what is the meaning of a (new, catlg, keep) disposition mean?

1017

How to create backup table in db2?

1089

What is the use of commit in db2?

1073

how do we prepare test data using file-aid tool?

2544

Tell me what type of files we can process thru file-aid?

936

Write in brief about clusters?

977

What is frset?

1027

What are types of indexes?

1068

How to find occurrence of mu and pe fields in a file?

890

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