Which is not true about point-to-point circuits? point-to-point circuits are dedicated to the use of the two computers. point-to-point circuits are more expensive than multipoint circuits. point-to-point circuits are called dedicated circuits. point-to-point circuits reduce the amount of cable required and use the circuit more efficiently than multipoint circuits. point-to-point circuits are used when the computers generate enough traffic to fill the capacity of the communication circuit.

The fourth option is correct.

Explanation:

Point to Point Circuit seems to be a confidential information link that safely links several or even more entities for confidential information facilities.  

Point to Point Circuit is a private server data transmission infrastructure that may not reach the global domain and seems to be automatically encrypted without the requirement for information protection. Thus, It decreases the number of wire needed as well as allows quite effective use of connection over multi-point circuits.

So, the following are the reason that describes the remaining options are not relevant according to the scenario.

Since Greg wants to become an advertising and promotions manager, he needs to at least gain a (B) bachelor’s degree level of education, since generally, this educational background is expected from individuals who wishes to work in an entry-level position in the field of advertising.

One of the skills that he also needs to develop is (C) communication skills, because he would have to be able to communicate in both written and spoken to develop the advertisements according to the client’s desires.