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 meaning of VSAM RETURN-CODE 28?

3 21892

On which datasets You can have ALT INDEX?

2 6304

How many Alternate Indexes you can have on a dataset?

AB Inc,

2 10057

Is it slower if you access a record through ALT INDEX as compared to Primary INDEX? Why?

1 6053

Yes. Because the alternate key would first locate the primary key, which in turn locates the actual record. Needs twice the number of I/Os.

2506

What is RECOVERY and SPEED parameters in DEFINE CLUSTER command?

1 14449

Describe SHAREOPTIONS parameter (SHR) in Define Cluster command.?

1 17840

What does the KEYRANGES parameter in Define Cluster commend do?

1 7560

What are the optional parameters to the input dataset While loading the empty cluster with the data records?

IBM,

1 6322

What is IDCAMS? and what is the purpose of it?

4 19218

How to delete a member using JCL.?

5 15649

What is the Difference between LDS & ESDS ?

3 15503

Is a delete operation possible in an ESDS?B. Is rewrite operation possible in ESDS ?

3 10554

What is an alternate index and path ?

Infosys, TCS,

2 26896

How many buffers are allotted to VSAM KSDS and ESDS?

1 8340

Un-Answered Questions { IBM MainFrame }

How to code these statements in JCL: CLEANUP INITIAL(NO) RESTART(NO) DYNALLOC(NO) job definition..?

2327

what is s000 u4087 error? please give the all error codes in cobol,jcl.

17940

Whats the difference between search & search ALL?

6694

Tell about the ams used in vsam?

1235

What are bind parameters in db2?

1104

what sorting order does search all have?

1073

What is db2 bind?

1133

Explain the usage of language in the ppt entry?

1054

How is the value function used?

1221

What are the different types of table spaces?

1075

How to code the db2 queries using rexx?

1056

Explain the significance of dbid used in adabs?

1057

What is the role of schema in the db2 database?

1376

what is the differences between getting the system time with eibtime and asktime command?

1198

how do you execute a background cics txn ?

1367

For More Un-Answered { IBM MainFrame } Questions Click Here