Answer:
The attack is known as SQI Injection attack.
Explanation:
SQI injection usually exploit some security lapse in an application software for it to be able to work. It usually attack websites and mostly known as attack vector but may equally attack any type of SQL database of a company. These attacks allow attackers to steal and use identity, tamper with existing data on a system or website of the company or allow the complete disclosure of all data on the system. SQL Injection can also destroy the data or make it otherwise unavailable. Most importantly, it can become administrators of the database server or even cause reconciliation issues for such company transactions (e.g banks) such as voiding transactions or changing balances.
The reason why this is likely to happen is that maybe the computer that you are using has disabled network discovery, preventing you to join or find the home group. And one more reason is that, your computer has not been set to home network, allowing you not to access or find the home group that you were looking for.
A string for sure, so answer B.
Answer:
As far as i know, it is Virtual Local Area Network (VLAN). You can read more about this here: https://en.wikipedia.org/wiki/VLAN