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

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 13874

What is the difference between External subroutine and subprogram?

3 29700

What is full form of SPOOL

IBM, Wipro,

15 40302

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 16383

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 12340

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 18762

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

2586

How to resolve SOC4 & SOC7 errors?

3 7467

what is the difference between FB & FBA?

2 16729

how to invoke subprogram in jcl?

2 6139

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 7367

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' ?

2085

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

IBM,

2669

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,

2743

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

IBM,

4 22544

Un-Answered Questions { IBM MainFrame }

Name some of the examples of COBOl 11?

3201

how do you access an uncataloged dataset in a jcl?

1831

Define a page in idms?

888

What is a junction record?

1410

cics command level is?

1255

Explain how can the submitting users racf authority be overridden in a job stream?

1198

What do you understand by the term “keyword” with respect to jcl and what is the opposite of the term?

1203

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

1081

Can you define ppt and what are its uses?

1128

What is the need of base registers in IBM 360/370?

2707

Explain the difference between cics program control table (pct) and cics processing program table (ppt)?

1119

Can I redefine an x(100) field with a field of x(200)?

1016

Are there any set of rules for the names of the steps used in a job?

1186

What are the steps involved in access method services?

1011

Can ESDS files be accessed from CICS?

1264

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