12. Using the following table list several activities performed by each of the following mainframe roles.

Typical Roles in System z Careers
Role	Activities Performed
System Programmer
System Administrator
Application Programmer
System Operator
Production Control Analyst
Customer Engineer
FTSS (Field Technical Sale Support)
SE (Systems Engineer)
SPOC (Single Point of Contact)

13. Using examples from the previous table titled "z/Enterprise Roles", explain the concept of "Separation of Duties". Answer:

14. The web URL document "Separation of Duties and IT Security" provides an easy test to determine if principles of the "Separation of Duties" have been violated. Explain this test of "Separation of Duties". Search the document for the keyword "test". Answer:

15. Using examples from the previous table listing "Typical z/Enterprise" roles. Select any two System z roles explain why these roles are based of the security concept "Separation of Duties". Answer:

20. What is the function of a zEnterprise LPAR (Logical Partition)? Answer:

21. What are the technical differences between zEnterprise LPAR and z/VM? Answer:

1. IBM System/360 architecture and mainframe operating system OS360 were the origins of the current IBM Z Architecture. Use the following table and answer the following questions

Features of the IBM System/360 Architecture
	Answer
Was the original System/360 designed for 32-bit or 64-bit processors?
Was the original System/360 primarily designed for designed for batch or OLTP?
Which types of User Interfaces, e.g., terminal, online, web, etc. were the original System/360 designed for?
Was the original System/360 designed for UNIX or Linux Operating systems?
Was the original System/360 designed for TCP/IP and Internet Services?
Was the original System/360 designed for COBOL applications?
Was the original System/360 designed for Java Applications?

2. What z/OS subsystem manages the execution of batch program, i.e., batch processing? Answer:

3. Historically, the popular to enter commands, i.e., JCL, and to manage and execute jobs on an IBM operating system was keypunch cards. Later, IBM provided a system that a user could enter and execute commands using a command line interface, What is the name of this popular command line interface which can be used to access IBM operating systems, manage jobs, perform system program tasks? Answer: