Computer networks do which of the following?

a. Allow computer hosts to communicate data between each other

b. Provide a user interface to control computer hosts

c. Provide a user interface to control networking devices

d. Operate solar power stations

Networking devices do which of the following?

c. Control and optimize communication between host devices

a. Provide an operating system for the Internet

b. Allow users to use more than one computer at once

d. Allow users to use more than one user interface at once

b. Sends frames it receives on all ports, except on the port where the frame is received

a. Modifies the MAC address of a data-link frame to allow transmission over longer distances

c. Amplifies the electrical signal to allow transmission over longer distances

d. Sends frames it receives only on the port that corresponds to the destination MAC address of the data-link frame

d. Sends frames it receives only on the port that corresponds to the destination MAC address of the data-link frame

a. Modifies the MAC address of a data-link frame to allow transmission over longer distances

b. Sends frames it receives on all ports, except on the port where the frame is received

c. Amplifies the electrical signal to allow transmission over longer distances

c. A network architecture blueprint that network and computer device manufacturers implement

a. A cabling standard that phone and networking companies implement

b. A computer host architecture blueprint that computer device manufacturers implement

d. A network device architecture blueprint that network device manufacturers implement

a. By encapsulating data at each layer and by defining clear interfaces between each layer

b. By allowing network and computer device manufacturers to implement proprietary layers

c. By allowing communication between computer hosts over a network

d. By optimizing the network route between computer hosts