Exam Prep Tasks
Review All Key Topics
Review the most important topics in the chapter, noted with the Key Topic icon in the outer margin of the page. Table 18.4 lists a reference of these key topics and the page numbers on which each is found.
Table 18.4 Key Topics for Chapter 18
Key Topic Element |
Description |
Page Number |
Listing 18.1 |
Unit types in systemd |
408 |
List |
Three sections of a systemd unit file |
409 |
Paragraph |
Understanding Target Units |
412 |
Exercise 18.1 |
Managing units with systemctl |
414 |
Table 18.3 |
Systemctl unit overview commands |
415 |
Section |
Managing systemd targets |
418 |
Exercise 18.2 |
Isolating targets |
420 |
Bullet list |
Explanation of the role of kernel and initramfs |
420 |
Listing 18.9 |
Contents of the /etc/default/grub file |
421 |
Exercise 18.3 |
Applying modifications to GRUB 2 |
424 |
Complete Tables and Lists from Memory
Print a copy of Appendix B, “Memory Tables” (found on the disc), or at least the section for this chapter, and complete the tables and lists from memory. Appendix C, “Memory Tables Answer Key,” also on the disc, includes completed tables and lists to check your work.
Define Key Terms
Define the following key terms from this chapter and check your answers in the glossary:
- unit
- wants
- target
- systemd
- dependencies
- initramfs
- kernel
- boot loader
- GRUB