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CCNA 1 v7.0 Modules 4 - 7: Ethernet Concepts Exam Questions
Verified and Provided with A+ Graded Answers Latest
Updated 2026
What is the purpose of the OSI transmitting bits across the local media*
physical layer?
Why are two strands of fiber They allow for full-duplex connectivity.*
used for a single fiber optic
connection?
Which characteristic describes the distortion of the transmitted messages
crosstalk? from signals carried in adjacent wires*
, Which procedure is used to twisting opposing circuit wire pairs together*
reduce the effect of crosstalk
in copper cables?
Match the situation with the * copper cables - horizontal cabling structure
appropriate use of network / desktop PCs in an enterprise office
media. *fiber optic - backbone cabling in an
enterprise / long-haul networks
*wireless - guest access in a coffee shop /
waiting rooms in a hospital
A network administrator is the amount of traffic that is currently
measuring the transfer of bits crossing the network / the type of traffic
across the company that is crossing the network / the latency
backbone for a mission that is created by the number of network
critical devices that the data is crossing
financial application. The
administrator notices that the
network throughput appears
lower than the bandwidth
expected. Which three
factors could influence the
differences in throughput?
What are two characteristics of It is not affected by EMI or RFI(crosstalk) / It
fiber-optic cable? is more expensive than UTP cabling is
What is a primary role of the create the signals that represent the bits in
Physical layer in transmitting each frame on to the media.
data on the network?
Explanation: The OSI physical layer provides
the means to transport the bits
that make up a frame across the network
media. This layer accepts a complete frame
from the data link layer and encodes it as a
series of signals that are
transmitted to the local media.
With the use of unshielded the magnetic field around the adjacent pairs
twisted-pair copper wire in a of wire
network, what causes crosstalk
CCNA 1 v7.0 Modules 4 - 7: Ethernet Concepts Exam Questions
Verified and Provided with A+ Graded Answers Latest
Updated 2026
What is the purpose of the OSI transmitting bits across the local media*
physical layer?
Why are two strands of fiber They allow for full-duplex connectivity.*
used for a single fiber optic
connection?
Which characteristic describes the distortion of the transmitted messages
crosstalk? from signals carried in adjacent wires*
, Which procedure is used to twisting opposing circuit wire pairs together*
reduce the effect of crosstalk
in copper cables?
Match the situation with the * copper cables - horizontal cabling structure
appropriate use of network / desktop PCs in an enterprise office
media. *fiber optic - backbone cabling in an
enterprise / long-haul networks
*wireless - guest access in a coffee shop /
waiting rooms in a hospital
A network administrator is the amount of traffic that is currently
measuring the transfer of bits crossing the network / the type of traffic
across the company that is crossing the network / the latency
backbone for a mission that is created by the number of network
critical devices that the data is crossing
financial application. The
administrator notices that the
network throughput appears
lower than the bandwidth
expected. Which three
factors could influence the
differences in throughput?
What are two characteristics of It is not affected by EMI or RFI(crosstalk) / It
fiber-optic cable? is more expensive than UTP cabling is
What is a primary role of the create the signals that represent the bits in
Physical layer in transmitting each frame on to the media.
data on the network?
Explanation: The OSI physical layer provides
the means to transport the bits
that make up a frame across the network
media. This layer accepts a complete frame
from the data link layer and encodes it as a
series of signals that are
transmitted to the local media.
With the use of unshielded the magnetic field around the adjacent pairs
twisted-pair copper wire in a of wire
network, what causes crosstalk
