FIS Mainframe Operator 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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This good experience to attend interview and if we have good knowledge will trackit

Q1. Personal questions for location and salary discussion and shift
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Q2. Reallocate is possible if it's required
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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. 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. Sort condition, null indicator, curser,db2 errors,
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Q1. Technical interview
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Q2. Technical core questions
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Q1. Technical interview
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Q1. Regarding salary discussion
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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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