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

Explain what a plan is?

CTS,

3 8927

What is a synonym ?

2 5776

What are the four lockable units for DB2?

1 6395

In a DB2-CICS program which is acts as co-ordinator and which is participant?

IBM,

1 5484

Describe what a storage group(STOGROUP) is?

2 10484

What is SPUFI?

4 17685

What is the difference between SYNONYM and ALIAS?

TCS,

6 29222

What is a data page?

1 4652

What is a subselect? Is it different from a nested select?

1 7993

When Can you be sure that a query will return only one row?

IBM,

4 8847

What is the SQL Communications Area and what are some of its key fields?

1 5587

How do you leave the cursor open after issuing a COMMIT? (for DB2 2.3 or above only)

2 9747

How many buffer pools are available in db2?

2 7347

What is the size of a data page?

IBM,

2 5997

What is the difference between CS and RR isolation levels?

1 8658

Un-Answered Questions { IBM MainFrame }

Give some examples of command terminators?

1329

What is the difference between hdam and hidam databases?

1220

How are data passed from jcl parm to assembler program?

1081

What is the meaning of the deq command?

1206

When output dataset space is required, what quantity categories are used?

1431

What is NOTCAT ?

1384

Explain the significance of the shareoptions parameter?

1081

How do we get current date from system with century in COBOL?

1438

How to find the maximum value in a column in the db2 database?

1139

File not opened because library is *PROD and debug is UPDPROD(*NO). ? what may be the reason? how to solve it..?

3016

What methodology can be adapted to transfer data to a program that is coded using the exec statement?

1279

What are Naming Standards in QMF?

1754

Mention the types of job control statements?

1236

What is condition checking in jcl? Is this possible?

1166

Explain how can a jobs execution priority be modified?

1271

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