OpenCyber Academy
Rapid course · Lesson 11 · English
Course code: OCA-008Lesson 11: OCA-008-A011

Two laptop checks have no on/off print

Open, free learning for anyone who wants to protect people and technology. No account is required to read this text or its worked answers.

Lesson map

Lesson 11. Map, example, EX057.

flowchart TD
  A["Two staff laptops"] --> B["Leo checks disk encryption on both"]
  B --> C{"Does the file print on or off?"}
  C -->|No| D["Keep the purpose, not a result"]
  C -->|Yes| E["That print is not in the chapter"]

The reason for disk encryption is not a reading of the two machines.

Logical drawing

library
    two staff laptops
purpose
    a stolen laptop should not expose its files
worked example
    Leo checks two laptops
    no on/off line
    no serial number

Learning outcomes

After this chapter, you should be able to:

  1. Keep the count at two staff laptops.
  2. Keep the purpose of disk encryption.
  3. Leave each machine without an on/off result.

11.1 A check can be real and still unpublished.

Chapter 1 gives the library two staff laptops. Chapter 3 says built-in disk encryption means a stolen laptop does not expose its files. The worked example says Leo checks two laptops for disk encryption, inside the signed note. It stops there. No line says both were on. No line says one was off. No serial number, asset tag, or staff name is attached to either machine. A classmate who writes "2 of 2 on" has composed a print this book never ran. The purpose sentence explains why the control matters. It does not report what Leo saw. He does not add a results row the chapter never showed.

11.2 Worked example

Lesson table; scroll horizontally to read all columns →

What someone cites What the file holds Decision
Two staff laptops The opening inventory Keep two
Stolen-laptop purpose Chapter 3 Keep the purpose
"Checks two laptops" The worked example Keep the check
"Both were on." No on/off line Refuse

Synthetic case. Neither laptop gains a name or a serial number.

Errors and limits

Saying the purpose aloud does not create an on/off line, and a missing line is not a failure.

Apply

Worked answers

EX057. No on/off result is printed. The library still has two staff laptops. Disk encryption still means a stolen machine should not expose its files. Do not invent a serial number.