Quiz5-Network Media

Media is the physical medium through which information usually moves physically from one network device to another.

• True

• False

Unbounded medium is also known as guided medium e.g. air or free space

• True

• False

"Shielded twisted pair (STP) is suitable for environments with electrical or radio interference; however, the extra metallic shielding can make the cables quite bulky."

• True

• False

Which of the following are considered unguided medium? (multiple answers)

• Wi-Fi

• RFID

• NFC

• Ethernet cable

"Which of these medium consists of a central insulated wire which carries the signal, surrounded by a fine copper mesh and an outer insulated shield?"

• USB cable

• Coaxial cable

• Optical cable

• Cat 5e cable

Fiber optic cable has the ability to transmit signals over much longer distances than coaxial and twisted pair.

• True

• False

Signal-to-noise ratio (often abbreviated SNR or S/N) is a measure used that compares the level of a desired signal to the level of

• Background noise

• Human noise

• Equipment noise

• Amplifier noise

"For cable balance and symmetry to be well balanced, voltage and current on each conductor of the twisted pair must be equal in magnitude and opposite in phase."

• True

• False