This is a series of messages sent by someone attempting to break into a computer to learn which computer network services the computer provides.

Related MCQs

• This is the forging of an e-mail header so that the message appears to have originated from someone or somewhere other than the actual source.
• This is an encryption/decryption key known only to the party or parties that exchange secret messages.
• This is the name for a group of programmers who are hired to expose errors or security holes in new software or to find out why a computer network's security is being broken.
• An intruder might install this on a networked computer to collect user ids and passwords from other machines on the network.
• This is a type of network security attack in which the intruder takes control of a communication between two entities and masquerades as one of them.
• This enables users of a basically unsecure public network such as the Internet to securely and privately exchange data and money through the use of a public and a private cryptographic key pair that is obtained and shared through a trusted authority.
• In which of the following exploits does an attacker insert malicious coding into a link that appears to be from a trustworthy source?
• This type of intrusion relies on the intruder's ability to trick people into breaking normal security procedures.
• This is the modification of personal information on a Web user's computer to gain unauthorized information with which to obtain access to the user's existing accounts.
• __________ is an electronic or paper log used to track computer activity.