MainFrame Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

IBM MainFrame (5234)
IBM AS400 (1355)
IBM PL/1 (31)

MainFrame Interview Questions

Questions Answers Views Company eMail

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

IBM,

1151

what is the purpose of the verify function of idcams?

IBM,

1054

how do you create an alternate index ?

IBM,

1066

what is meant by dirty read in vsam?

IBM,

1337

name a few common vsam status codes?

IBM,

1054

explain the differences between vsam and non-vsam files

IBM,

1153

how do you define an altindx ? How do you use altindxs in batch, cics programs?

IBM,

1067

what parameter in the define aix option is used to determine the maximum number of duplicate keys allowable ?

IBM,

1003

explain the information contained in ci

IBM,

1011

difference between vsam and database tables

IBM,

1127

what is the meaning of each of the values in shareopts(2 3)?

IBM,

1021

what are the idcams commands that can be used for vsam and explain each of them.

IBM,

984

what is buffering and how does it apply to vsam files ?

IBM,

1170

we can define the ksds cluster by two ways by using the file-aid or by using the idcams utility. Explain them.

IBM,

1318

explain icm instruction?

IBM,

1071

Un-Answered Questions { MainFrame }

What is buffer pool and list some of them?

1024

what is the probability of a complete system distortion under high end low performing multiprocessor job?

2465

different type of cursor?

1042

maximum number of subfiles that can defined in a rpg program for one display file is?

1986

In an sql table that is embedded, what is the procedure to retrieve rows that are part of a db2 table?

1101

How does db2 sample database connect?

1024

What is the difference between access path and open data path?

1104

What is the need for a secondary index in ims?

1075

What is a lds (linear data set)?

1007

A chkpt is the parameter coded for multi-volume qsam datasets in a dd statement. When a chkpt is coded as chkpt=eov, a checkpoint is written to the dataset specified in the sysckeov statement at the end of each volume of the input/output multi-volume dataset. State whether true or false?

1287

Explain package in db2 and its advantages?

1207

what sort card you will use to copy the data from one dataset to another dataset?

1218

give three main purposes of file specification ?

1733

What is binder language ?

1893

How to select highest score of each subject or how to select highest income of every month?

1761

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