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

where we can declare the files in fct and pct and ppt and rct pls give clear structure

IBM,

1 8594

abt ssa.purpose of ssa

IBM,

3 8729

If i have updated few fields of Adabas file using UPDATE command, and after that i used display to see that field get updted or not. If in Display it showing nothng or record did not get updated then what can be the possible reasons?

Satyam, TCS,

2 11114

What is the significance of DBID used in Adabs?

1 11204

i want to learn mainframes. i completed MCA ,whats the future of mainframes

5 9056

How to get Top 10 Salaries from a Table

Accenture, HTC,

11 28496

Re: 01 NAME1 PIC X(13) VALUE "COBOL PROGRAMMING". 01 NAME2 PIC X(13). now I want to display the value of NAME1 in reverse order i.e value should be displayed as "GNIMMARGORP LOBOC" HOW can I do that ??? please let me know if any one knows it.

IBM,

2 9648

How to read records which is in sequential file in reverse order ? Exp. 1 2 3 4 5 . i want 5 4 3 2 1?please clear my doubt any one

IBM,

10 26853

What is "Call by content" and "call by reference"?

ADP, Syntel,

4 21858

How can I create 1 DDM that fetches 3 ADABAS files simultaneously?

5 14079

How are data passed from JCL parm to assembler program. And how is data passed from a calling program to an assembler called program.

HCL, IBM,

3 14770

Why can only 256 bytes be moved from one address to another in a MVC?

CSC, HCL, IBM,

6 16088

What is base register?

IBM, Infosys,

23 95272

What is house keeping in assembler? And explain the following code HELLOTSO START 0 * PRINT NOGEN BEGIN SAVE (14,12) LR 12,15 USING TYPE,12 ST 13,SAVE+4 LA 11,SAVE ST 11,8(13) LR 13,11

Mind Tree,

6 21892

How do you initialize a register to 0000?

HCL,

10 21913

Un-Answered Questions { IBM MainFrame }

if you wish to use the rewrite command how must the vsam file be opened?

1211

Explain how to access vsam file?

1142

Is it possible to combine uni-rexx with a compiled language in any application? What applications interfaces are there?

990

Explain the function of the load command?

1193

What is explain plan in db2?

1053

Can you define mapset?

1106

write a cobol logic. i have file that has 10 records .1 record go to first output file and second record goes to 2 output and etc

1304

What is the difference between a binary search and a sequential search? What are the pertinent cobol commands?

1156

What is a db2 collection?

1114

when can a job time-out occur? How to overcome that?

1354

Explain how can values be passed from the job stream to an executable program?

1318

I have a subprogram B calling from mainprogram A.I have opened a cursor in A ,Can i fetch the same cursor in subprogram B , If yes , Please explain the reason?

2444

I had Records in file Like this Company Code IBM 2 IBM 1 IBM 4 WIPRO 3 WIPRO 2 WIPRO 9 TCS 4 TCS 6 TCS 3 i want the record of every company with highest code How can i do that?

10298

Explain in brief how does db2 determine what lock-size to use?

1098

What are the common tables in cics and their usage?

1070

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