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

s9(18) comp-3:: What is the size of memory it takes internally?

4 9794

How to define variable 9(20) in COBOL, because compiler does not allow us to declare variables with Pic 9(18). Can anyone please let me know the answer... I know one answer to this question which is to use Compiler option Arith (Extend) during Compilation. It extends the maximum limit to 9(32)..Just wanted to know if there is any other way to extend this?

CSC, TCS,

4 18284

wht r different types of sorts ?

L&T,

1 6518

wht is step lib n job lib ? where can we code joblib n steplib ?

L&T,

3 8697

wht is sysudump n sysout,sysprint ?

L&T,

1 7308

what is srange and nosrange pls reply to ths question ?

L&T,

2 7171

what is difference between repro and export? if any one know this plz tell me

Cap Gemini,

7 18978

what is static sql? what is dynamic sql? Give me details

3 8179

Can we dynamically increase the size of occurs clause? i.e In case I an not sure of the size of array and want to increase the size at run time.If yes , how?

1 6209

I have a variable account-number declared as comp-3, s9(10) comp-3 in a file. How do i find a particular account number say 123456 in that file?

3 8219

i) Difference between ps, esds, ii) Difference between lrecl, blksize among PS, PDS issues? i.e in jcl at dcb

2 11038

how can i code cond parameter in procedures ? i have a jclk calling a proc which has 10 steps i want to execute from step 5 to step 10 where can i code restrat parameter or cond parameter for ths

IBM,

4 8158

wht do u mean by inrec and outrec ?

IBM,

1 8594

jcl is like a complier....?

6 8976

wht do u mean by notify parameter, how can u give acess to multiple users ?

L&T,

4 10431

Un-Answered Questions { IBM MainFrame }

What is schema in db2?

1019

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

1327

Explain the difference between link xctl?

1003

What are steplib and joblib?

1169

What is rebind in db2?

1053

How is a typical db2 batch pgm executed?

1174

What are the cobol coding sheets?

1265

Suppose if I have updated few fields of adabas file using update command, and after that I used display to see that field get updated or not. If in display it showing nothing or record did not get updated then what can be the possible reasons?

945

List the various advantages of using jcl language?

1451

input 1 input2 ouput1 output2 output 3 1 re 300 1 re 200 1 re 300 3 rc 500 1 re 200 2 rr 400 1 re 300 2 rr 400 1 rc 400 3 rc 500 1 rc 400 2 rr 700 2 rr 700 5 tt 900 5 tt 900 2 inputs r in flat file and output 1 is matched records,ouptput2 is unmatched of input1,output3 is unmatched of input2! how vl u get the output files using sequential order and to check with each and every records! let me know the procedure division ?

2294

Highlight the points of differences between XCTL and START?

1234

Can you name a few software running under the mainframe?

948

What is an mdt (modified data tag)?

1026

What is temporal table in db2?

1038

What are the cics tables?

1084

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