Mainframe Operator Interview Questions and Answers

I have faced JCL abends related to syntax errors, data set errors, and system errors.

• Syntax errors such as missing or incorrect parameters in JCL statements

• Data set errors such as incorrect allocation or access permissions

• System errors such as resource unavailability or system crashes

• Examples include S0C7, S322, and U4038 abends

Procedures in Mainframe are sets of instructions that automate tasks and ensure consistency.

• Procedures are written in JCL (Job Control Language) and can be executed manually or scheduled to run automatically.

• They can be used for tasks such as backups, file transfers, and system maintenance.

• Procedures can include condition codes to handle errors and exceptions.

• They can also be nested within other procedures for more complex tasks.

• Examples of procedures include IBM's DFSMSrmm f...read more