Which of the following is a attack type that is used to poison a network or computer to the point
where the system is turned into unusable state?
A.
Mail bombing
B.
Pharming
C.
Protocol spoofing
D.
Denial of service (DOS)
Explanation:
Denial of service (DOS) attack is an attack that is used to poison a network or computer to the point
where the system is turned into a unusable state.by sending a large number of unwanted e-mails. The aim of this type of attack is to completely fill
the recipient’s hard disk with immense, useless files, causing at best irritation, and at worst total
computer failure. E-mail filtering and properly configuring email relay functionality on mail servers
can be helpful for protection against this type of attack.
Web site. Pharming can be conducted either by changing the hosts files on a victim’s computer or by
exploitation of a vulnerability in DNS server software. DNS servers are computers responsible for
resolving Internet names into their IP addresses. Incorrect entries in a computer’s hosts files are a
popular target for malware.
performance in situations where an currently working protocol is inadequate. In a computer security
context, it refers to several forms of falsification of technically unrelated data.
d