Which of the following has an incorrect definition mapping?

i.Shareware is software that is publicly available free of charge and can be used, copied, studied, modified, and redistributed without restriction.
ii. Freeware is used by vendors to market their software.
iii. Commercial software is software that is sold for or serves commercial purposes
iv. Academic software is software that is provided for academic purposes at a reduced cost. It can be open source, freeware, or commercial software.

__________________ is a method of taking over a Web user session by surreptitiously obtaining the session ID and masquerading as the authorized user.

John finds in the company logs that there has been continuous scans on the company’s UDP port 53. Which of the following services does this port map to?

Tim is told to carry out a SYN scan on some potentially vulnerable systems. What is another name for this type of scan?

Every computer system has __________ TCP and ______________ UDP ports. The first _________ are said to be well-known ports.

Joyce is a network administrator for a large financial company. She has found out that email messages that her company’s employees are sending out are not getting to their intended destination. Which of the following is the best reason that this is taking place?

Tom has been told that the DNS MX record has been changed. What does this record pertain to?

The main objective of separation of duties is to:

What security problem most likely exists if an operating system permits executable objects to be used simultaneously by multiple users without a refresh of the objects?

Larry needs to identify a technology that provides synchronous writing that typically achieves a Recovery Point Objective (RPO) of zero lost data and not asynchronous replication. Which of the following technologies can meet this need?