Question

a.Which of the following an external threat to a computer or a computer network ?
(a) Crackers (b) Trojan Horse (c) Adware (d) All of these

Answer 1

Answer:

(d) all of these ....is correct answer

Explanation:

Answer 2

All of these (option d) is the correct answer.

Computer viruses, Trojan horses, worms, and spyware are examples of malicious threats. It's code or software that's specifically designed to harm, steal, disrupt, or inflict some other "horrible" or unlawful conduct on data, hosts, or networks.