CICS Interview Questions and Answers
Ques 1. What is CICS?
Customer Information Control System (CICS) is a transaction processing system designed for online processing.
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Ques 2. Explain the difference between XCTL and LINK commands in CICS.
XCTL transfers control to another program and does not return, while LINK transfers control and returns after execution.
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Ques 3. What is a BMS map in CICS?
Basic Mapping Support (BMS) map is used to define the layout of screens and messages in CICS applications.
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Ques 4. How do you define a transaction in CICS?
A CICS transaction is defined using a PCT (Program Control Table) entry, specifying program and transaction ID.
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Ques 5. What is a CICS pseudo-conversational program?
Pseudo-conversational programs simulate a conversational style by using the XCTL command to transfer control between transactions.
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