Answer
Abstraction enables GPS system to facilitate the utilization of well defined interfaces while offering room to add additional levels of functionality which are complex to handle.
Explanation
GPS system applies abstraction to be able to arrange level of complexity on which a user will interact with the system. For example, it establishes a link of satellite positioned and timed systems to allow a radio receiver obtain a signal in four dimension after synchronizing the data of latitude, longitude, attitude and time.
Answer:
a: Twisted pair won't span a 400-foot distance.
Explanation:
The maximum distance that twisted pair cables can support without attenuation is 100 meters which is approximately 328 feet and the two office buildings are 400 feet apart, so it is useless to install a twisted pair cable for such a large distance. A much better option would be to install optic fiber. Though it is a bit expensive but it is the best option in this case.
Hence option (a) is the correct reason for installing an optic fiber cable rather than a twisted pair cable.
Answer:
TCP/IP
Explanation:
TCP/IP which stands for Transmission Control Protocol and Internet Protocol are network protocols which divide your message into smaller chunks or fragments known as network packets and sends them out onto the Internet. When the chunks arrive at the intended destination, TCP/IP on the receiving end reassembles the network packets into the original message.
TCP/IP are the main protocols used for sending data over the internet.
Answer:
a car salesman who demonstrates the features of a new model of car
Explanation:
Telecommuting can be defined as the process or making use of a telephone, email, or the internet to achieve your daily work. An attorney that spends most of her time researching on the computer is making use of an internet to do her work and hence telecommuting is employed. A copywriter for an advertising firm also makes use of email in the process of write copying and hence telecommuting is employed. A telemarketer uses the telephone and a product support who handles queries sent by customers also uses the internet and emails and telephones and hence they all use telecommuting. Demonstrating the feature of a new car does not use require the use of a telephone, email, or the internet.
