CCNA 1 v7.0 Modules 4 - 7: Ethernet
Concepts Exam Question & Answers
(Latest 2025 )
What is the purpose of the OSI physical layer? -
CORRECT ANSWERS ✅transmitting bits across
the local media*
Why are two strands of fiber used for a single fiber
optic connection? - CORRECT ANSWERS
✅They allow for full-duplex connectivity.*
Which characteristic describes crosstalk? -
CORRECT ANSWERS ✅the distortion of the
transmitted messages from signals carried in
adjacent wires*
Which procedure is used to reduce the effect of
crosstalk in copper cables? - CORRECT ANSWERS
✅twisting opposing circuit wire pairs together*
Match the situation with the appropriate use of
network media. - CORRECT ANSWERS ✅*
copper cables - horizontal cabling structure /
desktop PCs in an enterprise office
, CCNA 1 v7.0 Modules 4 - 7: Ethernet
Concepts Exam Question & Answers
(Latest 2025 )
*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 measuring the transfer
of bits across the company backbone for a mission
critical financial application. The administrator
notices that the network throughput appears lower
than the bandwidth expected. Which three factors
could influence the differences in throughput? -
CORRECT ANSWERS ✅the amount of traffic
that is currently crossing the network / the type of
traffic that is crossing the network / the latency
that is created by the number of network devices
that the data is crossing
What are two characteristics of fiber-optic cable? -
CORRECT ANSWERS ✅It is not affected by EMI
or RFI(crosstalk) / It is more expensive than UTP
cabling is
Concepts Exam Question & Answers
(Latest 2025 )
What is the purpose of the OSI physical layer? -
CORRECT ANSWERS ✅transmitting bits across
the local media*
Why are two strands of fiber used for a single fiber
optic connection? - CORRECT ANSWERS
✅They allow for full-duplex connectivity.*
Which characteristic describes crosstalk? -
CORRECT ANSWERS ✅the distortion of the
transmitted messages from signals carried in
adjacent wires*
Which procedure is used to reduce the effect of
crosstalk in copper cables? - CORRECT ANSWERS
✅twisting opposing circuit wire pairs together*
Match the situation with the appropriate use of
network media. - CORRECT ANSWERS ✅*
copper cables - horizontal cabling structure /
desktop PCs in an enterprise office
, CCNA 1 v7.0 Modules 4 - 7: Ethernet
Concepts Exam Question & Answers
(Latest 2025 )
*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 measuring the transfer
of bits across the company backbone for a mission
critical financial application. The administrator
notices that the network throughput appears lower
than the bandwidth expected. Which three factors
could influence the differences in throughput? -
CORRECT ANSWERS ✅the amount of traffic
that is currently crossing the network / the type of
traffic that is crossing the network / the latency
that is created by the number of network devices
that the data is crossing
What are two characteristics of fiber-optic cable? -
CORRECT ANSWERS ✅It is not affected by EMI
or RFI(crosstalk) / It is more expensive than UTP
cabling is
