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

How much space OS allocates when you create a PS or PDS?

4 12926

Min no of member?s (PDS) in one directory block?

10 31583

The maximum number of steps in a job?

4 22209

How much is memory space involved, when we code BLOCKSIZE,TRK & CYL ?

1 14371

What is DSNDB06 ?

1 8723

What is the use of DSNDB07 ?

1 8125

How do you override a specific DDNAME/SYSIN in PROC from a JCL?

CTS,

6 47583

What is NOTCAT 2

IBM,

2 16512

What is 'S0C7' abend?

9 85321

What is a S0C4 error ?

2 8765

What are SD37, SB37, SE37 abends?

4 63097

What is S322 abend ?

5 32937

Why do you want to specify the REGION parameter in a JCL step?

Kekran Mekran, TCS,

4 36360

What does the TIME parameter signify ? What does TIME=1440 mean ?

Accenture, TCS,

6 42713

What is COND=EVEN ?

IBM,

9 36323

Un-Answered Questions { IBM MainFrame }

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

1378

how long does the install of oorexx take?

1001

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

1015

How can you classify the locks in db2?

1087

Define task work area?

1312

What is the kcp in the cics?

1162

How to get the last record in vsam file in cluster?

1009

What is perform what is varying?

1161

What are union and union all?

976

what sorting order does search all have?

1008

What is the comaera?

1254

Which is the difference between delimited by size and delimited by space?

1087

Explain the data storage?

992

What is query_cache_limit?

967

how will you find a particular line in debugging if its a infinite loop

1759

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