If two hosts are connected by five networks, how many frames will there be when one host sends a packet to the other host?

A. 1

B. 2

C. 5

D. 6

Which of the following is a standards agency?

A. OSI

B. TCP/IP

C. ITU-T

D. All of the above

Standards layers provide services directly to _______.

A. the next-higher layer

B. the next-lower layer

C. all layers

D. only themselves

Which layer governs wires?

A. transport

B. physical

C. internet

D. none of the above