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Q:

Which CICS service transaction is used to gain accessibility to CICS control tables? Mention the one that has the highest priority?

Answer

CEDA 

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Q:

What is the difference between the enter key, the PF keys and the PA keys?

Answer

The enter and PF keys transmit data from the screen; the PA keys tell CICS that a terminal action took place, but data is not transmitted.

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Q:

Explain the difference among the EXEC LINK, EXEC XCTL and Cobol II static call statements in CICS?

Answer

- Use a COBOL II CALL statement to invoke a subprogram. This method is transparent to CICS, which sees only the one load module. 


- EXEC LINK is similar to a call; it invokes a separate CICS program and ends with a RETURN to the invoking program


- EXEC XCTL which transfers control to another CICS program and does not get control 


back. 


COBOL II allows for static calls which are more efficient than the LINK instruction which establishes a new run-unit. 

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Subject: Mainframe Interview

Q:

What is the function of the CICS translator?

Answer

The CICS translator converts the EXEC CICS commands into call statements for a specific programming language. There are CICS translators for Assembler, COBOL, and PL/1.

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Q:

What is the difference between the INTO and the SET option in the EXEC CICS RECEIVE MAP command?

Answer

The INTO option moves the information in the TIOA into the reserved specified area, while the SET option simply returns the address of the TIOA to the specified BLL cell or address of a linkage-section.


 

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Q:

What are the CICS commands available for program control?

Answer

The following commands are available for the Program Control services:


LINK: To pass control to another program at the lower level, expecting to be returned. XCTL: To pass control to another program at the same level, not expecting to be returned.


RETURN:  To return to the next higher-level program or CICS. 


LOAD: To load a program. 


RELEASE: To release a program.

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Q:

What are different ways of Initiating Transaction in CICS?

Answer

The following are the ways of initiating a CICS transaction.


1. By entering Transaction Id


2. By Start command


3. By Return Trans Id (as in pseudo - conversation)


4. By Registering Tran ID in plt so that it will be automaticaly dusring CICS start


5. By ATI (Automatic task initiation)


6.PF & PA keys as defined in PCT

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Q:

What happens when a CICS command contains the NOHANDLE option?

Answer

- NOHANDLE is an option that can be specified along with abnormal condition during program execution.


- When the exception occurs, no action is performed during execution of NOHANDLE command.


- The abnormal condition is ignored, even the EXEC CICS HANDLE condition exist.


- The abnormal condition is also ignored when EXEC CICS IGNORE condition is tested.


- The previous HANDLE CONDITION for other commands will not be effected with NOHANDLE option.

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