One of the reasons Facebook is losing popularity is due to excessive commercialization, where users were shown full-page ads for movies or musical artists, as well as banner ads that appeared at the top of most pages

Which of the following is the major issue with a ping scan?

a. It is easy to detect. b. It will not identify open ports. c. Many firewalls block ICMP packets so the scan might not be successful. d. The scan produces many false negatives and false positives.

Which of the following is not true about bool values and how they're output with the output stream?

a. The old style of representing true/false values used -1 to indicate false and 1 to indicate true. b. A bool value outputs as 0 or 1 by default. c. Stream manipulator boolalpha sets the output stream to display bool values as the strings "true" and "false". d. Both boolalpha and noboolalpha are “sticky” settings.