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 maximum number of segment types allowed for a single database?

1130

What information does a dbd contain?

1030

What is meant by bmp mode?

1077

What is dbms in ims?

1066

Explain dbdgen process?

1100

Can we use procopt on pcb and segment field (senseg)?

984

What is a segment in ims?

1015

What is the advantage of dynamic generation of acb?

934

What is dl/i?

1131

What are the two types of fields available in ims db?

1023

What is the maximum of key fields and search fields allowed in a segment?

999

What is the maximum number of pcbs allowed in a psb?

972

What are the processing modes available in ims db?

1079

What are the objectives of dbms in ims?

1090

What is the disadvantage of dynamic generation of acb?

1009

Un-Answered Questions { IBM MainFrame }

Name some of the examples of COBOl 11?

3143

Can you explain control variable in online screens?

983

is it required that primary key values have to be unique? Do alternate key values have to be unique?

1054

Why select is not preferred in embedded sql programs?

1299

What is a cursor in programming?

1069

What is ibm db2 client?

939

What is image copy in db2?

1020

What is the main purpose of having user catalog in vsam?

1063

Explain how do you terminate an already issued delay command?

1004

how to do automated restart when a job abends?

1385

Categorize the mainframe manual testing?

987

What is load utility in db2?

1181

Step 1 RC 4 Step 2 Step 3 I want to know the COND parameter which can be coded in step 2 or 3. Step 2 should be executed based on Step 1 RC and Step 3 should not be executed based on step 1's RC

4903

State all the file open modes?

1076

Explain how to find occurrence of mu and pe fields in a file?

931

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