1
WGU D315 NETWORK AND SECURITY FOUNDATIONS
EXAM STUDY GUIDE LATEST COMPLETE 270
QUESTIONS AND CORRECT DETAILED ANSWERS
LAN - ..(answers)..It is a network of users that share computer resources in a
limited area.
Local Area Network - ..(answers)..A network of users that share computer
resources in a limited area.
Definition of Local Area Networks - ..(answers)..In terms of protocol and the
topology used for accessing the network.
Protocol - ..(answers)..A set of rules established for users to exchange
information.
Topology - ..(answers)..The network architecture used to interconnect the
networking equipment.
Common topologies for LANs - ..(answers)..Ring, Bus, and Star.
Token Ring topology - ..(answers)..Uses a token that is placed in the data channel
and circulates around the ring.
, 2
Deterministic network - ..(answers)..A network where each station connected to
the network ensures access for transmission of its messages at regular or fixed
time intervals.
Disadvantages of the Token Ring system - ..(answers)..1. If an error changes the
token pattern, it can cause the token to stop circulating.
Troubleshooting disadvantage of Token Ring - ..(answers)..The token ring path
must be temporarily broken or interrupted if a computer or any device on the
network is to be removed or added to the network.
Solution to Token Ring troubleshooting - ..(answers)..Connect each computer or
device on the network to a central token ring hub.
Token ring hub - ..(answers)..A device that manages the passing of the token
instead of relying on individual computers to pass it.
Improvement by token ring hub - ..(answers)..It improves the reliability of the
network.
Bus topology - ..(answers)..Topology whereas the computers share the media or
coaxial cable for data transmission.
ThinNet - ..(answers)..The coaxial cable that is looped through each networking
device to transmit data in a bus topology.
, 3
Bus topology data visibility - ..(answers)..In this topology, all devices on the
network can see each other's data traffic.
Bus topology transmission - ..(answers)..Topology whereas each computer must
wait for pauses in transmission or until the transmission from one device is
complete before initiating a new transmission onto the network.
Disadvantages of bus topology - ..(answers)..1. Data can be corrupted if more
than one device on the network transmits at the same time and will have to be
resubmitted. 2. The use of the shared coaxial cable prevents data transmission
from being very bandwidth-efficient.
Seldom used topology - ..(answers)..Bus topology.
Most common topology in today's LANs - ..(answers)..Star topology.
Twisted-pair cables topology - ..(answers)..Topology that uses twisted-pair cables
with modular plugs to connect computers and other networking devices.
Star topology - ..(answers)..Topology whereas each device is connected to a
switch or hub.
Hub - ..(answers)..Transmits data to all the devices connected in the star network.
WGU D315 NETWORK AND SECURITY FOUNDATIONS
EXAM STUDY GUIDE LATEST COMPLETE 270
QUESTIONS AND CORRECT DETAILED ANSWERS
LAN - ..(answers)..It is a network of users that share computer resources in a
limited area.
Local Area Network - ..(answers)..A network of users that share computer
resources in a limited area.
Definition of Local Area Networks - ..(answers)..In terms of protocol and the
topology used for accessing the network.
Protocol - ..(answers)..A set of rules established for users to exchange
information.
Topology - ..(answers)..The network architecture used to interconnect the
networking equipment.
Common topologies for LANs - ..(answers)..Ring, Bus, and Star.
Token Ring topology - ..(answers)..Uses a token that is placed in the data channel
and circulates around the ring.
, 2
Deterministic network - ..(answers)..A network where each station connected to
the network ensures access for transmission of its messages at regular or fixed
time intervals.
Disadvantages of the Token Ring system - ..(answers)..1. If an error changes the
token pattern, it can cause the token to stop circulating.
Troubleshooting disadvantage of Token Ring - ..(answers)..The token ring path
must be temporarily broken or interrupted if a computer or any device on the
network is to be removed or added to the network.
Solution to Token Ring troubleshooting - ..(answers)..Connect each computer or
device on the network to a central token ring hub.
Token ring hub - ..(answers)..A device that manages the passing of the token
instead of relying on individual computers to pass it.
Improvement by token ring hub - ..(answers)..It improves the reliability of the
network.
Bus topology - ..(answers)..Topology whereas the computers share the media or
coaxial cable for data transmission.
ThinNet - ..(answers)..The coaxial cable that is looped through each networking
device to transmit data in a bus topology.
, 3
Bus topology data visibility - ..(answers)..In this topology, all devices on the
network can see each other's data traffic.
Bus topology transmission - ..(answers)..Topology whereas each computer must
wait for pauses in transmission or until the transmission from one device is
complete before initiating a new transmission onto the network.
Disadvantages of bus topology - ..(answers)..1. Data can be corrupted if more
than one device on the network transmits at the same time and will have to be
resubmitted. 2. The use of the shared coaxial cable prevents data transmission
from being very bandwidth-efficient.
Seldom used topology - ..(answers)..Bus topology.
Most common topology in today's LANs - ..(answers)..Star topology.
Twisted-pair cables topology - ..(answers)..Topology that uses twisted-pair cables
with modular plugs to connect computers and other networking devices.
Star topology - ..(answers)..Topology whereas each device is connected to a
switch or hub.
Hub - ..(answers)..Transmits data to all the devices connected in the star network.
