What are two reasons for the physical layer protocols to use frame encoding techniques? (Choose two.)
to reduce the number of collisions on the media
to distinguish data bits from control bits
to provide better media error correction
to identify where the frame starts and ends
to increase the media throughput
What is indicated by the term throughput?
the guaranteed data transfer rate offered by an ISP
the capacity of a particular medium to carry data
the measure of the usable data transferred across the media
the measure of the bits transferred across the media over a given period of time
the time it takes for a message to get from sender to receiver
A network administrator notices that some newly installed Ethernet cabling is carrying corrupt and distorted signals. The new cabling was installed in the ceiling close to fluorescent lights and electrical equipment. Which two factors may interfere with the copper cabling and result in signal distortion and data corruption? (Choose two.)
extended length of cabling
What characteristic describes crosstalk?
the distortion of the network signal from fluorescent lighting
the distortion of the transmitted messages from signals carried in adjacent wires
the weakening of the network signal over long cable lengths
the loss of wireless signal over excessive distance from the access point
What technique is used with UTP cable to help protect against signal interference from crosstalk?
twisting the wires together into pairs
wrapping a foil shield around the wire pairs
encasing the cables within a flexible plastic sheath
terminating the cable with special grounded connectors
Refer to the exhibit. The PC is connected to the console port of the switch. All the other connections are made through FastEthernet links. Which types of UTP cables can be used to connect the devices?