Answer:
D
Explanation:
A zero-day vulnerability is a computer-software vulnerability that is unknown to those who would be interested in mitigating the vulnerability. Until the vulnerability is mitigated, hackers can exploit it to adversely affect computer programs, data, additional computers or a network. An exploit directed at a zero-day vulnerability is called a zero-day exploit, or zero-day attack.
Answers:
1. D
2. A
3. B
4. C
Explanation: I just did it and got a 100%
All server side errors start with 5XX
The wireless network I believe