CCNA5 Chapter 4 Exam Practice

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

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

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

DIN

PS-2

RJ-11

RJ-45

It is usually cheaper than copper cabling.

It is able to be installed around sharp bends.

It is easier to terminate and install than copper cabling.

It is able to carry signals much farther than copper cabling.

The two strands allow the data to travel for longer distances without degrading.

They prevent crosstalk from causing interference on the connection.

They increase the speed at which the data can travel.

They allow for full-duplex connectivity.

application

transport

data link

physical

The logical topology is always the same as the physical topology.

Physical topologies are concerned with how a network transfers frames.

Physical topologies display the IP addressing scheme of each network.

Logical topologies refer to how a network transfers data between devices.

full duplex

half duplex

multiplex

simplex

End devices connect to a central intermediate device, which in turn connects to other central intermediate devices.

End devices are connected together by a bus and each bus connects to a central intermediate device.

Each end system is connected to its respective neighbor via an intermediate device.

All end and intermediate devices are connected in a chain to each other.

logical address

physical address

data

error detection

The transmitting node inserts start and stop bits into the frame.

The transmitting node sends a beacon to notify that a data frame is attached.

The receiving node identifies the beginning of a frame by seeing a physical address.

The transmitting node sends an out-of-band signal to the receiver about the beginning of the frame.

to verify the integrity of the received frame

to verify the physical address in the frame

to verify the logical address in the frame

to compute the checksum header for the data field in the frame