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ccna 200-301 book reddit.Table 21-2 Selected Cisco Technology Package LicensesFigure 21-6 Three Steps for Manually Adding a Software License to a Cisco Router21.3.2 Complete the tables and lists from memory Print Appendix D (found on the accompanying CD) or the relevant parts of the chapter and complete the tables and lists from memory. Appendix E includes all436 Chapter 21 Managing IOS Licensestables and lists that can be used to check your answers.21.3.3 Explain key termsAfter studying this chapter, try to explain the key terms, but you do not have to answer all of them correctly during the explanation. Chapter 22 will guide you on how to use these terms for your final exam preparation.IOS feature set, universal image, product activation key, universal device identifier (UDI)21.3.4 Command Reference to Check Your MemoryThe two tables in this section provide a reference list of configuration commands (as shown in Table 21-4) and EXEC commands (as shown in Table 21-5) that appear in this chapter. Although it is not necessary to memorize the contents of the tables, you should, in fact, be able to remember these commands after reading this chapter and completing all the exercises in the Exam Preparation section of this chapter. To verify your learning, you can test whether you remember the commands by covering the left side of the table with a piece of paper and then reading the instructions on the right side of the table to see if you can write the corresponding commands.