| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| operating system security book | 0.11 | 0.2 | 5275 | 30 | 30 |
| operating | 1.83 | 0.8 | 615 | 90 | 9 |
| system | 0.46 | 0.4 | 5968 | 61 | 6 |
| security | 1.99 | 0.6 | 6170 | 63 | 8 |
| book | 1.77 | 0.8 | 5382 | 95 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| operating system security book | 0.26 | 1 | 6556 | 62 |
