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 8917

What is a synonym ?

2 5773

What are the four lockable units for DB2?

1 6394

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

IBM,

1 5482

Describe what a storage group(STOGROUP) is?

2 10482

What is SPUFI?

4 17677

What is the difference between SYNONYM and ALIAS?

TCS,

6 29213

What is a data page?

1 4650

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

1 7989

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

IBM,

4 8839

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

1 5585

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

2 9741

How many buffer pools are available in db2?

2 7341

What is the size of a data page?

IBM,

2 5994

What is the difference between CS and RR isolation levels?

1 8655

Un-Answered Questions { IBM MainFrame }

What is the common systems area?

1140

What is database alias db2?

1188

Explain the difference between the into and the set option in the exec cics receive map command?

1184

what is search and searchall?what is the diffrence between them?give an best example?

6954

What does a rollback do in idms?

1045

Explain dd statement in jcl?

1187

What is a configuration management system, give examples?

1090

What are catalog tables in db2?

1113

Are you comfortable in cobol or jcl?

1097

accept ws-date from date will return the current date?

1081

Explain the maximum number of pcbs allowed in a psb?

3671

Explain cemt transaction commands?

1245

When you are working with the project.. once your coding is over what will u do? where u r maintaining your CR(change request) what is the format what are the documents u need to prepare while testing?

2054

What is the difference between version control and debugging tools?

1131

here is my requirement A1 is alphanumeric with value 'A1B2C3D4' as defined below 05 A1 PIC X(8) VALUE IS 'A1B2C3D4' but i need to have A2,A3 as ABCD & 1234 repectively...... A2 = ABCD A3 = 1234 Can you please explain me what are the different ways to do it?

8047

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