Network Communication Quiz

In addition to the cable length, what two factors could interfere with the communication carried over UTP cables? (Choose two.)

• signal modulation technique

• size of the network

• crosstalk

• electromagnetic interference

• bandwidth

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

• the collision caused by two nodes trying to use the media simultaneously

• the reflection of the electrical wave back from the far end of the cable

• the use of braided wire to shield the adjacent wire pairs

• the magnetic field around the adjacent pairs of wire

Match the situation with the appropriate use of network media.

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

• determine the path packets take through the network

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

• provide physical addressing to the devices

• control data access to the media

Refer to the graphic. What type of cabling is shown?

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What are two characteristics of fiber-optic cable? (Choose two.)

• It combines the technique of cancellation, shielding, and twisting to protect data.

• Each pair of cables is wrapped in metallic foil.

• It is more expensive than UTP cabling is.

• It is not affected by EMI or RFI.

• It typically contains 4 pairs of fiber-optic wires.

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

• data

• error detection

• logical address

• physical address

Which statement describes an extended star topology?

• 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.

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

Which media communication type does not require media arbitration in the data link layer?

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Which statement describes a characteristic of the frame header fields of the data link layer?

• Ethernet frame header fields contain Layer 3 source and destination addresses.

• They all include the flow control and logical connection fields.

• They include information on user applications.

• They vary depending on protocols.