Module 4 Check Understanding Flashcards
True or false? The physical layer is only concerned with wired network connections.
False.
True or false? When a frame is encoded by the physical layer, all bits are sent over the media at the same time.
False.
The physical layer of the receiving device passes bits up to which higher level layer?
data link
What PDU is received by the physical layer for encoding and transmission?
frame
Which media uses patterns of microwaves to represent bits?
Wireless
which media uses patterns of lights to represent bits?
fiber-optic
which media uses electrical pulses to represent bits?
copper
Name for capacity of a medium to carry data?
bandwidth.
name for the measure of the transfer of bits across the media?
throughput.
Which cable attaches antennas to wireless devices? Can also be bundled with fiber-optic cabling for two-way data transmission.
coaxial.
Which cable counters EMI And RFI using shielding techniques and special connectors?
STP
Which cable terminates with BNC, N type and F type connectors?
coaxial.
which fiber optic cable types can help data travel app. 500 meters?
multimode
Which fiber optic cable types use light emitting diodes (LEDs) as a data light source transmitter.
multimode
Which fiber optic cable types use lasers in a single stream as a data light source transmitter?
single-mode
