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 Restart Logic in Cobol?

L&T, Syntel,

1 10753

What is the size of s9(19)comp3? explain

8 13908

Write a query to retrive partial string.

2 5721

hw to create 3 dimensional array & hw to access it?

1 6069

plz any one tell clearly the justify right clause?

1 4952

created cluster using IDCAMS ..that is empty ..when i write a program for read using Input ..wil it open the cluster or gives any error?

HCL,

2 8589

In an array processing what is the thing that can be done by using subscripts but not by using index

JPMorgan Chase,

4 14177

hi. This is Ram.i have one doubt.why can't we display comp-3 variables directly? let me answer quickly plez........

1 5871

program to find the number of objects used in a given program through a display.

IBM,

2 8686

In COBOL CALL-CALLING,if a program A is calling 3 sub- programs, dynamically, then it is said sub-programs will always will always in Initial Mode. My question is : Do we need to code CANCEL or (IS INITIAL) for dynamically called sub-programs or it is the property of Dynamically called pgms so every time sub-pgms are called they will be in initial mode. ***This question is only Dynamic call****, Please reply. Thank you in advance.

Wipro,

4 9756

can alternate index use in ESDS since it does not contain primary index? if yes can you explain?

iGate, Temenos,

2 7300

what is the steps followed in EXPLAIN Process or EXPLAIN command. (Explain is for identifying the optimized access path but how or what is the steps for doing the EXPLAIN)

IBM,

4 8991

how to retrieve particular field records from a physical file,say i have a physical file called 'employee' in it i have to retrieve the records of a field 'admin' present in pf 'employee' using rpg,but i should not use logical file or openquery file.

iGate, Wipro,

3 9616

can alternate index use in ESDS since it does not contain primary index? if yes can you explain?

Temenos,

3 9063

Thanks gagan for your answer,i'm new to as400,i don't know embedded sql in rpg.can you send me the coding for the below mentioned question in embedded sql rpg. how to retrieve particular field records from a physical file,say i have a physical file called 'employee' in it i have to retrieve the records of a field 'admin' present in pf 'employee' using rpg,but i should not use logical file or openquery file.

iGate,

2 6456

Un-Answered Questions { MainFrame }

When it is desirable to describe files Internally?

1714

Does qtp tool support mainframe application testing?

1093

Explain how can you accomplish breakpoint in intertest?

1030

What is comp-1?

963

How to receive data passed through jcl parm parameter in a natural program? How data definition is defined in the program?

1085

Why db2 is called db2?

1047

what is join logical file?

1894

What is meant by deadlock in db2?

1257

which single rpg opcode performs both setll and reade?

1777

What is input procedure?

1004

What are the different rules to perform a Search?

1100

What is an in line perform? When would you use it? Anything else you wish to say about it.

1079

what does the opcode free do?

1960

How to connect to db2 database from windows command line?

1066

What is the function of the dd mgmtclas keyword in sms datasets?

1239

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