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

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DB2 (1122)

IMS (143)
IDMS (107)
Natural (81)
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REXX (60)
Assembler (68)
CLIST (6)
QMF (32)

MVS (25)
OS390 (10)
OS 2 (7)
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IBM MainFrame Interview Questions

Questions Answers Views Company eMail

How can we initialize a variable which is a constant in a LDA. Suppose I want to declare a variable #a N1(1:7) having constant values as 1,2,3,4,5,6, and 7 for respective occurance then how can we do that?

TCS,

5 13844

What is the difference between External subroutine and subprogram?

3 29673

What is full form of SPOOL

IBM, Wipro,

15 40239

what is main use of table space and index object? please its urgent

CA, Cap Gemini, CGI, CTS, EDS, HTC, IBM, Satyam, Syntel, TCS, Wipro,

5 16363

I HAVE FOLLOWING DECLARATION. 02. A PIC X(10) VALUE 'XXXXXXXXXX'. 02. B REDEFINES A. 05. C PIC X(3). 05. D PIC X(3). 05. E PIC 9(3). IN MY PROG, I HAVE MOVE 1 TO E. DISPLAY A. WHAT WILL BE DISPLAYED AS A RESULT OF THIS? PLEASE EXPLAIN THE ANSWER. THANKS.

Amdocs,

7 12312

What is an EXPLAIN in DB2. How and what is the steps followed in EXPLAIN command. Can all the queries be used in EXPLAIN command to check the performance.

IBM,

3 18749

what about F1 & F2 keys in xpeditor? And their functionalities?

2581

How to resolve SOC4 & SOC7 errors?

3 7462

what is the difference between FB & FBA?

2 16712

how to invoke subprogram in jcl?

2 6127

Hi Please try to be to-the-point. 1) How to INCLUDE a JCL segment in a JOB ? (A Small example) 2) What is SPOOL and what is SPOOL FULL ? and how to direct the output of a Jobstep to SPOOL ?

IBM,

3 7355

What do we mean by 'Virtual storage' for a dataset and for a JOBSTEP ? What is the significance of the following statement for a programmer 'Virtual storage results in program addresses being independent of the addresses that actually exist in a computer' ?

2082

What is 'mounting' of volumes ? Is there anything that a programmer can do in it ? How to find currently mounted volume ?

IBM,

2660

How to find the UNIT and VOLUME of a (a) KEPT (b) UNCATALOGED and (c) CATALOGED dataset - using (i) JCL and using (ii) ISPF ?

IBM,

2740

What is TimeStamp, What is TimeStamp error and What is the Abend Code for TimeStamp Error ?

IBM,

4 22524

Un-Answered Questions { IBM MainFrame }

In job processing, what happens in execution stage?

1293

What is meant by PPT and what are its uses?

1160

When would you use abend command?

1244

Explain the benefits you can get from mainframe connect?

1024

What is the result of open cursor statement?

1131

I want to JCL sort for Non-COMP and COMP-3 fields SORT FIELDS=(1,5,A,6,11,A,12,11,A,19,1,A,20,1,A),FORMAT=BI,EQUALS Length of comp bytes is 11 bytes which start at 6byte and 12 byte considering 11 bytes in comp-3 is 6 bytes. Can anyone tell if the above sort work SORT FIELDS=(1,5,A,6,6,A,12,6,A,19,1,A,20,1,A),FORMAT=BI,EQUALS does not works OK

1998

What is db2 and what is the use of db2 optimizer?

1118

What is difference between isnull and coalesce?

1117

In a KSDS file, key is missing for one record. How to insert the key for that particular record from back up file. Is there any sorting needed for the back up file before the key insertion?

1517

How do you pull up a query which was previously saved in qmf?

1208

1.give the details about WHEN OTHER. 2. how many form are available in evaluate.

2170

Explain what is the massinsert option?

1114

What is the usage of comp fields in cobol?

1225

What is view db2?

1133

Tell me abt any another framework which is challening for Ibm framework

2165

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