MainFrame Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

IBM MainFrame (5234)
IBM AS400 (1355)
IBM PL/1 (31)

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 29221

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 8846

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 9746

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 { MainFrame }

What is the use of the program list table?

1141

How to detect record is locked in cobol/400?

1036

What is dl/i?

1219

What is the physical storage length of time data type?

1193

How do I add a column to an existing table in db2?

1091

Explain the cics command that is used for reading a record from the tdq?

1061

How do I import a csv file into db2?

1048

How to run my rexx exec?

980

Write the code to count the sum of n natural numbers.

1264

how do you reference the esds vsam file formats from cobol programs

1281

What is the maximum number of columns in a db2 table?

1361

What is Pic 9v99 Indicates in COBOL?

1356

What is jcl in mainframe?

1269

What are union and union all?

1048

if we want to use a gdg which is already created by some job, then how to use the reference of the last generation in a jcl?

2360

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