Answer:
First Normal Form
Explanation:
The correct answer is - First Normal Form
Reason -
Given that,
A-B,C
C-F
D-E
Here the key is AD
The two partial Functional dependencies are -
A-B,C
D-E
So,
They are not in Second Normal Form, but they are in First Normal Form.
helped sailors determine direction at sea- Compass
gave sailors a better way to steer their ships- Rudder
allowed sailors to use the positions of the sun and stars for navigation- Astrolabe
used by sailors to defend their ships against pirates- Gunpowder
Explanation:
Answer: Unable to follow normal shutdown process creates a bad sector on the harddrive and too much of this crashes the disk .
D is the correct answer, I hope this helps you