For the physical implementation of networks, we have three types of physical media: metallic cables, optical fiber, and wireless networks, which us...

For the physical implementation of networks, we have three types of physical media: metallic cables, optical fiber, and wireless networks, which use radio frequency signals for signal transmission. And, with the widespread use of mobile devices, one of the transmission technologies that is present in all local networks is wireless networks, being the main form of connection for users to home networks and also in many corporate networks. However, for the implementation of wireless networks, it is necessary to consider the characteristics of wireless networks, as presented in the route. Thus, considering these characteristics, evaluate the following statements.

I. For the elaboration of the wireless project, it is necessary to consider the materials used in the construction of the environments where the network will be installed, as these materials will influence the coverage of the network.
II. The communication process of wireless networks is simplex because user terminals cannot send data while the Access Point is transmitting data to the terminals.
III. As the communication medium is shared, for us to have an improvement in the communication process, each client should use a different channel for communication with the Access Point.
IV. If the signals emitted by the Access Point are received by an unauthorized terminal, this terminal may gain access to the network, and security mechanisms must be implemented to prevent this unauthorized access.
A) I and II.
B) II and III.
C) III and IV.
D) I and IV.
E) I, III, and IV.