WGU D315 Network and Security Foundations Exam Guide ACTUAL QUESTIONS AND CORRECT ANSWERS

WGU D315 Network and Security
Foundations Exam Guide ACTUAL
QUESTIONS AND CORRECT ANSWERS
LAN - CORRECT ANSWERS✅✅It is a network of users that share computer resources in a
limited area.


Local Area Network - CORRECT ANSWERS✅✅A network of users that share computer
resources in a limited area.


Definition of Local Area Networks - CORRECT ANSWERS✅✅In terms of protocol and
the topology used for accessing the network.


Protocol - CORRECT ANSWERS✅✅A set of rules established for users to exchange
information.


Topology - CORRECT ANSWERS✅✅The network architecture used to interconnect the
networking equipment.


Common topologies for LANs - CORRECT ANSWERS✅✅Ring, Bus, and Star.



Token Ring topology - CORRECT ANSWERS✅✅Uses a token that is placed in the data
channel and circulates around the ring.


Deterministic network - CORRECT 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 - CORRECT ANSWERS✅✅1. If an error changes
the token pattern, it can cause the token to stop circulating.

,Troubleshooting disadvantage of Token Ring - CORRECT 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 - CORRECT ANSWERS✅✅Connect each
computer or device on the network to a central token ring hub.


Token ring hub - CORRECT ANSWERS✅✅A device that manages the passing of the token
instead of relying on individual computers to pass it.


Improvement by token ring hub - CORRECT ANSWERS✅✅It improves the reliability of
the network.


Bus topology - CORRECT ANSWERS✅✅Topology whereas the computers share the
media or coaxial cable for data transmission.


ThinNet - CORRECT ANSWERS✅✅The coaxial cable that is looped through each
networking device to transmit data in a bus topology.


Bus topology data visibility - CORRECT ANSWERS✅✅In this topology, all devices on the
network can see each other's data traffic.


Bus topology transmission - CORRECT 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 - CORRECT 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 - CORRECT ANSWERS✅✅Bus topology.



Most common topology in today's LANs - CORRECT ANSWERS✅✅Star topology.

, Twisted-pair cables topology - CORRECT ANSWERS✅✅Topology that uses twisted-pair
cables with modular plugs to connect computers and other networking devices.


Star topology - CORRECT ANSWERS✅✅Topology whereas each device is connected to a
switch or hub.


Hub - CORRECT ANSWERS✅✅Transmits data to all the devices connected in the star
network.


Hub - CORRECT ANSWERS✅✅Also called a multiport repeater.



Hub - CORRECT ANSWERS✅✅Not meant for large networks, but are still used in some
smaller, slower speed LANs.


Broadcast - CORRECT ANSWERS✅✅A transmission from a hub in a star network to all
the devices in the network connected to the hub.


Switch - CORRECT ANSWERS✅✅Stores the hardware or physical address for each device
connected to its ports in a star network.


Switch - CORRECT ANSWERS✅✅Sends data transmissions directly to the port of the
destination device on the network.


Port - CORRECT ANSWERS✅✅The physical input/output interfaces to the networking
hardware.


Port - CORRECT ANSWERS✅✅Where the cables physically connect to each other or a
central switch or hub.


Star - CORRECT ANSWERS✅✅Only the intended destination device on this network will
see the data traffic.