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CICS Interview Questions & Answers - Learning Mode
COOLINTERVIEW.COM MAINFRAME INTERVIEW QUESTIONS CICS INTERVIEW QUESTIONS QUESTIONS & ANSWERS - LEARNING MODE

CICS Interview Questions & Answers - Learning Mode

Customer Information Control System (CICS?) is a family of mixed language application servers that provide online transaction management and connectivity for applications on IBM Mainframe systems under z/OS and z/VSE. CICS is middleware designed to support rapid, high-volume online transaction processing. CICS (Customer Information Control System) is an online transaction processing (OLTP) program from IBM that, together with the COBOL programming language, has formed over the past several decades the most common set of tools for building customer transaction applications in the world of large enterprise mainframe.

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CICS Interview Questions & Answers - Learning Mode
Try CICS Interview Questions & Answers - Exam Mode
Question: What is the difference between the XCTL and LINK commands?

Answer: The LINK command anticipates return of control to the calling program, the XCTL command does not. Return to the calling program will be the result of the CICS RETURN command, specifying TRANSID(name of the calling program). Source: CoolInterview.com
Question: What are the Cursor Positioning techniques in CICS?

Answer: Static Cursor Positioning : When defining the map field DFHMDF macro in the attribute parameter IC is coded, the cursor will be positioned in that field. This method of cursor positioning is called static cursor positioning Relative Positioning : Code the CURSOR option with a value relative to zero Symbolic Positioning : Move high values or ?1 to the field length in the symbolic map and code CURSOR on the SEND command. Source: CoolInterview.com
Question: What does the CEDF,CEMT,CEBR,CECI transactions do?

Answer: CEDF :
CICS-supplied Execution Diagnostic Facility transaction. It provides interactive program execution and debugging functions of a CICS programs.
CEMT : CICS-supplied Extended Master Terminal transaction. It displays or manipulates CICS control environment interactively.
CEBR : CICS-supplied Temporary Storage Browse transaction. It displays the content of Temporary Storage Queue ( TSQ ).
CECI : CICS-supplied Command Interpreter transaction. It verifies the syntax of a CICS comm Source: CoolInterview.com
Question: The error code AEIV?

Answer: This is the error code for length, if length of the source data is more than the receiving field, this error will occur. Source: CoolInterview.com
Question: What is Pseudo-conversation?How it is achieved in CICS Programs?

Answer: The programming methodology in which the task will not wait for the terminal users response, but frees and resources after sending the message is call a PSEDUDO Conversational Technique. Terminating the task every time the application needs a response from the user and then starting the next transaction when the user presses a attention key is PSEUDO Conversational Processing. Source: CoolInterview.com
Question: What happens when a CICS command contains the NOHANDLE option?

Answer: No action is going to be taken for any exceptional conditional occurring during the execution of this command. The abnormal condition that occurred will be ignored even if an EXEC CICS HANDLE condition exist. It has the same effect as the EXEC CICS IGNORE condition except that it will not cancel the previous HANDLE CONDITION for any other command. Source: CoolInterview.com
Question: How many ways can we initiate a CICS Transaction? What are they?

Answer: A. Keying in the Transaction-id at the terminal
B. By coding an EXEC CICS START in the application program
C. By coding the transaction id and trigger level in the DCT (Automatic Task Initiation)
D. By coding the transaction id in the EXEC CICS return command
E. By associating the attention key with the PCT
F. By embedding the transaction id in the first four positions of a screen sent to the terminal
G. By using the Program List Table.
Source: CoolInterview.com
Question: The error code AEIV?

Answer: This is the error code for length, if length of the source data is more than the receiving field, This error will occur. Source: CoolInterview.com
Question: LENGERR, NOTAUTH and PGMIDERR are some of the common exception conditions that can occur with LINK and XCTL (True or False). ?

Answer: False Source: CoolInterview.com
Question: How can the fact that EIBCALEN is equal to zeros be of use to an application programmer?

Answer: When working in a pseudo-conversational mode, EIBCALEN can be checked if it is equal to zero. A programmer can use this condition as a way of determining first time usage(of the program). Source: CoolInterview.com
Question: What is EXEC CICS RETRIEVE ?

Answer: Used by STARTed tasks to get the parameters passed to them. Source: CoolInterview.com
Question: What is CEBR?

Answer: CEBR lets you browse the contents of a specific temporary storage queue. Source: CoolInterview.com
Question: What is the maximum number of exceptions that can be specified with a single HANDLE CONDITION command in CICS ?

Answer: SIXTEEN (16) Source: CoolInterview.com
Question: What is the difference between a RETURN with TRANSID and XCTL ?

Answer: For example prog. A is issuing REUTRN with TRANSID to prog B. Prog A. is issuing XCTL to prog B. In RETURN with TRANSID the control goes to the CICS region and the user have to transfer the control to prog. B by pressing any of the AID KEYS. In XCTL the control is directly transfer to prog B. Source: CoolInterview.com
Question: What is the COMMAREA(communications area)?

Answer: An area used to transfer data between different programs or between subsequent executions of the same program. Needs to be defined in the Linkage Section. 1 what happens internally when a trans Id is entered in the CICS region? 2 What are all the ways to position the cursor? 3 how do you dynamically position the cursor? 4 how the attributes of the fields can be changed dynamically? 5 What is MDT?explain in detail? 6 how the VSAM Files will be recognized by the CICS? 7 what is Pseudo conversation Source: CoolInterview.com
Question: The DFHCOMMAREA is used to pass information from one application to another. What are some other ways that this function can be accomplished?

Answer: You can also pass information in the following ways. - By using a temporary storage queue - By using an intrapartition TDQ - By using the Task Work Area - By using TCTUA - Through a file Source: CoolInterview.com
Question: The mode of achieving conversation with the user, by sending him the message and while waiting for his response, freeing the system resources is called?

Answer: Pseudo-conversation Source: CoolInterview.com
Question: What information do you get when an EXEC CICS STARTCODE is issued?

Answer: You will be able to determine if the application was started by (1) a transient data trigger level(QD), (2) a START command (S,SD), (3) user (U) or terminal input (TD), or (4) Distributed Program Link(D,DS). Source: CoolInterview.com
Question: What is the attribute byte?

Answer: Defines the display/transmission of field. most cases is an output field from the program. Source: CoolInterview.com
Question: Which type of TDQ is read destructive?

Answer: Intrapartition TDQ is read destructive. extra partition tdq is not read destructive. Source: CoolInterview.com

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