Which of the following attacks is MOST likely the cause when a user attempts to go to a website and notices the URL has changed? (A) DLL injection (B) DDoS attack (C) DNS poisoning (D) ARP poisoning

Answer: C) DNS poisoning

Explanation: DNS poisoning or DNS cache poisoning is the type of attacking tendency towards the URL of the computer. These attempt to attack the URL using the spam mails and the user usually end up clicking on the URL provided by the attacker which invokes attack in the computer.

This mechanism takes place in the emails as well as the selected websites which can be accessed by the users easily. These attacks once enter the system seems like the real thing and become prone to many risks.