IT TEST Ethernet

Which is a multicast MAC address?

01-00-5E-00-00-03

When the store-and-forward method of switching is in use, what part of the Ethernet frame is used to perform an error check?

CRC in the trailer

What is the auto-MDIX feature?

It enables a device to automatically configure an interface to use a straight-through or a crossover cable.

During the encapsulation process, what occurs at the data link layer for a PC connected to an Ethernet network?

The physical address is added.

What type of communication rule would best describe CSMA/CD?

access method

What OSI physical layer term describes the capacity at which a medium can carry data?

bandwidth

What is a primary role of the Physical layer in transmitting data on the network?

create the signals that represent the bits in each frame on to the media

What is contained in the trailer of a data-link frame?

error detection

Which switching method has the lowest level of latency?

fast-forward

What does the term "attenuation" mean in data communication?

loss of signal strength as distance increases

A Layer 2 switch is used to switch incoming frames from a 1000BASE-T port to a port connected to a 100Base-T network. Which method of memory buffering would work best for this task?

shared memory buffering

Which switching method uses the CRC value in a frame?

store-and-forward

With the use of unshielded twisted-pair copper wire in a network, what causes crosstalk within the cable pairs?

the magnetic field around the adjacent pairs of wire

What is the purpose of the FCS field in a frame?

to determine if errors occurred in the transmission and reception

What is the function of the CRC value that is found in the FCS field of a frame?

to verify the integrity of the received frame