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Mainframe Testing Interview Questions | Software Testing interview Questions
1. May I know if you will be able to access both mainframe (z/os) and quality center simultaneously or do we log off from mainframe each time we try to submit a job or do a test with it and return to QC to write test cases?
Yes, you will be able to access both mainframe and quality center simultaneously. The terminal emulator is the only software that needs to sit on the client machine. Changes to the software (COBOL, JCL, etc) are made on the mainframe and as a mainframe tester you don't need to worry about migrating them to the client. If it works through one terminal emulator it should work on them all. The result just needs to be documented on Quality center.
2. How would the SRS Or BRD's be for the mainframe testing. I mean I know how it works with opening a browser and check for login which we generally studied in H2K classes but in reality how a mainframe tester does faces a BRD given?
You will be provided with all the documentation related to the projects.Not sure if they use BRD. Once you join, spend decent time to learn your application and use your skill to write the test cases. You might have to take help from your colleague or lead in the beginning but later you will get it
3. Also I hope you have experiences on CICS environment in testing. If so please guide me through with testing in CICS environment as well.
Please go through our documentation on CICS. CICS is generally used by expereinced mainframe developer. But still you can get lots of info @ IBM website as well. If you need specific command please let me know.
4. May I also know what else a mainframe tester would do apart from submitting a job and checking results in spool. Please impart your knowledge and experiences that you faced.
As I have mentioned in the class, Mainframe Testing is similar to client-server applications testing, but you have to know how to operate basic TSO and ISPF commands and menus, view mainframe files, look at and use SDSF or other output tool, log on CICS and transactions, use FTP or another transfer protocol, submit the batch job - it's for QA testing of mainframe applications.
And plus, QA testing for another platform, like WEB and/or client-service, since the mainframe is usually back-end.
It can be learned pretty quickly once you have access to mainframe system.
You need to know the expected results, discuss with business analysts, with system team, with Capacity team, ….
And you will have to know a lot of tools or technique: Strobe, File Aid, Ecomp, and CA7, report Excel, Word, DB2, CICS, zOS, Sort, backup, recovery, etc.