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Preface > How this text is organized - Pg. xii

functions. Hands-on exercises are provided throughout the course to help students explore the mainframe style of computing. At the end of this course, you will have learned: Concepts of mainframe-based data communications Methods for implementing TCP/IP on the z/OS operating system Methods for implementing SNA on the z/OS operating system Basic skills in network operations, security, and problem determination How this text is organized This text is organized in four parts, as follows: Part 1, "Introduction to networking on the mainframe" on page 1, provides an overview of the importance of the mainframe environment and some of the functions and roles of networking professionals. It also introduces you to several typical applications and environments that are used throughout the text as examples when discussing specific networking scenarios.