Mainframe Interview Questions 2022

Mainframe Interview Questions 2022

Most Mainframe interviews comprises of questions around the real time projects you worked in the past, the challenges you faced and how you offered solutions for critical problems. In this article I would like to share some of the important Mainframe interview questions. Mainframe Interview Questions and Answers 1. Explain DRDA ? DRDA represents Distributed … Read more

How to Backup For Wordpress Site
How to Backup For Wordpress Site

Advanced MQSeries Techniques

Advanced MQSeries Techniques

MQSeries Techniques Queue Choice Message Class Waiting for Messages Automatically starting MQSeries programs Unit Of Work Size Example programs Queue choice For any MQSeries application you need to decide what MQSeries queues to use, and which classes of message you require. It is recommended that applications are not written with hard coded queue or queue … Read more

MQSeries API Basics

Mainframe Interview Questions 2022

The API supported by MQSeries is known as the Message Queue Interface (MQI). There are only 11MQI function calls in total, these allow programs to: Connect to, and disconnect from, queue managers Open and close queues Open, put a message on a queue, and close the queue Put messages on queues Get messages from a … Read more

MQ Series Basics and Tutorials

MQ Series Basics and Tutorials

A brief introduction to MQ Series As a whole MQ Series enables messages to be exchanged, either synchronously or asynchronously, between application programs running on one or more target systems. Messages travelling between programs are stored on message queues, which are under the control of a service provider called a queue manager. In general, a … Read more

How to Use JCL Cond Parameters

How to Use JCL Cond Parameters

How to use JCL Cond Parameters to skip a step in a Job Cond Parameters are used in Job steps to route the job execution of each steps or a particular step. For example if you want to skip a particular step based on previous steps outcome, using a COND parameter is a good solution. … Read more

Useful CICS Commands with Screens

How to Use JCL Cond Parameters

CICS Commands If you have already compiled your BMS Macro by running JCL and it has created the physical and symbolic map, following screen shows how to perform other steps needed for a CICS transaction. Below are some of the hands on screen shots to learn CICS basic screens and commands. Define CICS MAP in … Read more

How COBOL-DB2 Compilation Process Works

How COBOL-DB2 Compilation Process Works

In Mainframe Programming, it is very important to understand how a COBOL DB2 program is compiled and to be aware of all the important steps in the compilation process. What is DB2 Pre-Compilation Process in Mainframe DB2 pre-compilation is one of an important step to prepare a COBOL- DB2 module for execution. COBOL-DB2 module includes … Read more

Procedures and Sub-routines in PL/1 Programming

Procedures and Sub-routines in PL/1 Programming

PROCEDURES in PL/I There are three types of PL/I procedures. MAIN procedure, Subroutine Procedure and Function Procedure. The main procedures are having separate compilations and may or may not have subroutine and functions. Subroutine and functions may also be compiled separately and called as Subprogram. Four main advantages of using Subprograms        Saves coding efforts … Read more

File Handling and Structures in PL/I Programming

Is Mainframe Programming good to Learn in 2022

FILE HANDLING in PL/I File handling process in PL/I is similar to the FILE handling process in FORTRAN. There are four major steps involved in it.             * Define the file                                 –  DECLARE             * Open the file                                  – OPEN FILE             * Process information in the file       – READ or WRITE or REWRITE                                                                           … Read more