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

what is the cics command used to access current date and time?

IBM,

1235

when an xctl is done, does the tranid change ? Is a new task created ? Does it cause an implicit syncpoint to be issued ?

IBM,

1270

what is the most common way of building queue-id of a tsq?

IBM,

1133

which transient data queue support ati?

IBM,

1193

which cics service transaction is used to gain accessibility to cics control tables? Mention the one that has the highest priority.?

IBM,

1234

what is the difference between a return with transid and xctl? For example program. A is issuing return with transid to program b. Program a. Is isssuing xctl to program b?

IBM,

1236

Which are the db2 tools to protect integrity of the database?

IBM,

1170

define cond parameter in jcl?

IBM,

1335

what do you mean by include statement in jcl?

IBM,

1 2327

write a jcl to execute a job by 7:00 am on jan 20,1986?

IBM,

1167

what do you mean by a vsam slot?

IBM,

1050

what do you mean by the cobol record key clause in vsam?

IBM,

1072

explain how many ways you can load data in a vsam cluster?

IBM,

1098

what is the meaning of dynamic processing in vsam?

IBM,

1113

what do you mean by a vsam split?

IBM,

1153

Un-Answered Questions { IBM MainFrame }

Whats the difference between search & search ALL?

6675

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

1194

Explain the use of DCT ?

1124

what are the commands used to gain exclusive control over a resource?

1274

For what purpose steplib and joblib are used ?

1192

how do you intitiate another transaction?

1239

What is phantom read in db2?

1228

what is diffrence b/w file-aid tool and file-aid utility???

4971

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

1393

what is need of start 0? In steed of

1153

What is the maximum number of segment types allowed for a single database?

1181

What is the difference between next sentence and continue in cobol programing language?

1279

How jcl is used for testing batch programs?

1359

What is an ook-rec in idms?

938

What are IDMS set of occurances?

1429

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