Atos Mainframe Storage Administrator Interview Questions and Answers

Q1. Job statement in JCL
Ans. 
Job Control Language (JCL) is used to define and execute jobs on mainframe systems.
• JCL statements are used to specify the job to be executed, including input/output files, program to be run, and other job control parameters.

• Example: //JOBNAME JOB (ACCOUNT), 'DESCRIPTION',CLASS=A,MSGCLASS=X

• JCL statements are written in a specific format with keywords and parameters to define the job steps and execution flow.

• Example: //S
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Q2. Utility used to create a GDG.
Ans. 
IDCAMS is the utility used to create a GDG.
• IDCAMS is a utility program used in z/OS to define and manage VSAM datasets, including GDGs (Generation Data Groups).

• To create a GDG using IDCAMS, you would typically write a JCL job that includes IDCAMS statements to define the GDG base and generations.

• Example: //STEP1 EXEC PGM=IDCAMS //SYSIN DD * DEFINE GDG(NAME(TEST.GDG) LIMIT(10) SCRATCH)
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Q3. Difference b/w COMP & COMP 3 along with scenario-based questions on this topic
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Q4. CICS related question regarding CICS transactions and its life cycle.
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Q1. Explain Precompilation process
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Q2. How do you do Load and Unload Process
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Q1. Jobs / jcls/proc
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Q2. Jobs/jcls/proc/cobol/db2/cics/mainframe technical questions
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Q1. 1. Asked about my current project and asked to explain the Cobol program written for that 2. Difference between Call by reference and Call by Content 3. Difference between Primary Key, Unique key and forei...read more
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What is subsrcipt and index , When will use subscript n index

Coding for condition parameters

Q1. What is join key
Ans. 
Join key is a field used to match records from two different data sets in a database or data processing system.
• Join key is used in JOIN operations to combine data from multiple tables based on a common field.

• It is typically used in SQL queries to specify the columns that should be used to match records between tables.

• For example, in a customer and order database, the customer ID could be the join key to link customer i
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Q1. Interview: Self Introduction, overflow of project, role, catlg proc instream proc difference, Gdg and syntax to create Gdg, parameters of Gdg, Restart parameter, condition parameters, Ibm utilities, to re...read more
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Q1. Basic Ingenium related questions
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Q2. Life insurance concepts
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