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

In an EVALUTE statement is the order of the WHEN clauses significant?

4 12386

Give some advantages of REDEFINES clause?

Syntel,

2 20763

How do you do in-line PERFORM?

Accenture,

4 18135

Explain call by context by comparing it to other calls.

1 9079

What does EXIT do ?

Deloitte,

3 13611

what is Pic 9v99 Indicates?

2 13476

What is an explicit scope terminator?

3 20144

COMP?

2 6310

What should be the sorting order for SEARCH ALL?

5 10492

How is sign stored in Packed Decimal fields and Zoned Decimal fields?

ABC, HCL, TCS,

6 37962

How do you define a table/array in COBOL?

Hexaware,

5 31279

When is a scope terminator mandatory?

3 9115

How do you submit JCL via a Cobol program?

IBM,

5 20652

What is the difference between a DYNAMIC and STATIC call in COBOL?

2 13230

Differentiate COBOL and COBOL-II?

2504

Un-Answered Questions { MainFrame }

Explain the difference between null compression and default compression?

888

What are fillers? What is the actual use of fillers? With mall/simple example?

948

Write a CL program which will run a batch job at 1 am every night

1063

Name the command which is used to release a record on which exclusive control is gained?

963

What is the syntax for creating a table in the db2 database?

1072

Explain the difference in data type "x" and "p"?

980

What are the 2 types of parameters in dd statement?

1109

Is it possible to obtain a record from IDMS database without mentioning the record-name itself?

1304

How gdg are concatenated?

1075

State the differences between vsam and non-vsam files?

994

How do you handle exception in PL/1?

1618

When reorg is used?

1083

what would be the effect on the field where reverse image, underline and highlight display attributes were active?

1544

What is perform?

1058

What is explain plan in db2?

947

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