Answer:
Correct Answer:
D) is a formal method of communication, i.e., legally it needs to be approved by an administrator, such as a principal during routines that families normally engage in.
Explanation:
In an established school system, there is need to have an established form of communication between the students and the parents of those students. This could be achieved through a traveling notebook. Before its usage, there is need for it to be approved by the school management in-order to monitor that it was used for its main purpose rather than being abused.
Answer:
National service provider (NSP)
Regional service provider (RSP)
Internet service provider (ISP)
Explanation:
National service providers (NSP) are companies that own the internet backbone infrastructure which other second party internet service providers can link to. Examples of NSPs are Orange, Sprint, AT&T etc.
It typically provides fibre optic cables and core routers which the ISPs link to in order to provide internet exchange for the customers.
Regional service provider (RSP) are basically ISPs operating within a region. Unlike ISPs, they cover only defined regions. Examples are New England's NEARNet which provides internet access for residents of New England and the San Francisco Bay area BARNet for San Francisco Bay resident.
Internet service provider (ISP) are the direct link to the customers. Many NSPs also act as ISPs by using routers that can transfer network from the backbone network exchange to the receiving equipment of the end users such as mobile phones, computers etc. Examples of ISPs are AT&T, Comcast and Verizon.