What is a denial of service attack?
A. A denial of service attack occurs when the perpetrator sends hundreds of messages from randomly generated false addresses, overloading an Internet service provider’s e-mail server.
B. A denial of service attack occurs when an e-mail message is sent through a re-mailer, who removes the message headers making the message anonymous, then resends the message to selected addresses.
C. A denial of service attack occurs when a cracker enters a system through an idle modem, captures the PC attached to the modem, and then gains access to the network to which it is connected.
D. A denial of service attack occurs when the perpetrator e-mails the same message to everyone on one or more Usenet newsgroups LISTSERV lists.
Answer:A
What is a denial of service attack?
A. A denial of service attack occurs when the perpetrator sends hundreds of messages from randomly generated false addresses, overloading an Internet service provider’s e-mail server. B. A denial of service attack occurs when an e-mail message is sent through a re-mailer, who removes the message headers making the message anonymous, then resends the message to selected addresses. C. A denial of service attack occurs when a cracker enters a system through an idle modem, captures the PC attached to the modem, and then gains access to the network to which it is connected. D. A denial of service attack occurs when the perpetrator e-mails the same message to everyone on one or more Usenet newsgroups LISTSERV lists.