2 1.C 22。 B 23。 A 24. A handful of 25. C 26。 A handful of 27. B 28。 B 29。 B 30。 B 3 1。 A handful of 32. D 33。 C 34。 B 35。 C 36。 D 37。 C 38。 D 39。 B 40。 D

Three. 1. Error 2. Right three. A good encryption algorithm can only get the key through exhaustive methods, so as long as the key is long enough, it will be very safe. So yes. 4. Right

Dude, I'm not a computer major. However, I am a network security enthusiast and know a lot about Trojan virus. Although encryption and decryption are also possible, they are unprofessional and many professional terms are unclear. But the answer above is 80% yes. I want to send the correct answer when I choose the best answer. thank you