Answer:
A
Explanation:
A hacker searching for open ports denotes vulnerability of computer (to hacking).
Cheers
Answer:
Hertz are commonly expressed in multiples: kilohertz (103 Hz, kHz), megahertz (106 Hz, MHz), gigahertz (109 Hz, GHz), terahertz (1012 Hz, THz), petahertz (1015 Hz, PHz), exahertz (1018 Hz, EHz), and zettahertz (1021 Hz, ZHz).
The Rudolph Rule states that simple ways you can make information stand out and guide or satisfy your audience to important details and highlight important information in your presentation
so i conclude option D is correct for above statement
hope it helps