... examined.■Infrastructure Security: Media This section reviews the types of physical media over whichnetwork communications can take place, including coaxial cable, unshielded and shieldedtwisted ... the print Study Guide. A Practice Exam contain 60 questions, with detail answer explanations. Fast Tracks for quick topicreview, provided in both HTML and PowerPoint format.■Web-based practice ... the Security+ exam, two specific abbreviations need to beexplained to avoid confusion. For general security study and the Security+ exam, AAA is defined as “Access Control, Authentication, andAuditing.”...