WGU: Network & Security Foundations
(C-172) Study Set with Verified Solutions
Router ✔️✔️Networking device used to connect two or more networks (ex: your LAN
and the Internet)
Access point ✔️✔️Used to interconnect wireless devices and provide a connection to
the wired LAN
Broadband modem (gateway) ✔️✔️Device used to provide highspeed data access via
your cable connection or via a telephone company's DSL connection (combines a
modem and a router into one box)
Cable modem ✔️✔️Device used to make a broadband network connection from your
home network to the ISP using your cable connection. Requires a splitter to separate
the cable TV from the home network.
DSL modem ✔️✔️Device used to make a broadband network connection from your
home network to the ISP using the phone line
Wireless-N ✔️✔️Best data transfer rates for a wireless home network, cost to switch
is minimal, and is a suitable alternative to a wired network
,SSID (Service set identifier) ✔️✔️Name used to identify your wireless network, and is
used by your access point or wireless router to establish an association - basically a
password that enables the client to join the wireless network
WEP (Wired equivalent privacy) ✔️✔️Data encryption for home network. Concerns
that this is not a strong enough encryption to secure a wireless network. But does
provide some basic security
WPA (Wi-Fi Protected Access) ✔️✔️data encryption for home network. Improved
wireless security, supports user authentication provided by 802.1x and replaces WEP
as the primary way for securing wireless transfers.
WPA2 ✔️✔️Data encryption for home network that uses a stronger encryption than
WPA and is also backward compatible with adapters using WPA. Enhances security of
WPA by incorporating authentication of the user (password requirement)
Wi-Fi protected setup ✔️✔️WPS - simplifies configuration process, enabling the user
to set up a WPA PSK without having to enter a long string of symbols, random
numbers, or letters **Susceptible to brute force attacks
SSID broadcast ✔️✔️Should be turned off - hackers can use this info to possibly gain
access to your network.
, Hotspots ✔️✔️Make it easy to gain wireless access but hackers can also be on the
same network, so it's important to have encryption turned on
MAC address filtering ✔️✔️Should be enabled so that only wireless devices that have
specific MAC addresses will be allowed to access the network
Network Address Translation ✔️✔️NAT - The outsider sees only the router IP address
because the IP addresses of the internal networking devices are not provided on the
Internet.
Firewall protection ✔️✔️Turn this on to prevent unauthorized access to your network -
Stateful Packet Inspection (SPI) is an example
Virtual private network ✔️✔️VPN - should be established when transferring sensitive
information (protects your LAN's data from being observed by outsiders). Data is
protected from an attacker.
Overloading ✔️✔️Where NAT translates the home network's private IP addresses to a
single public IP address
Port Address Translation ✔️✔️PAT - a port number is tracked with the client
computer's private address when translating to a public address
(C-172) Study Set with Verified Solutions
Router ✔️✔️Networking device used to connect two or more networks (ex: your LAN
and the Internet)
Access point ✔️✔️Used to interconnect wireless devices and provide a connection to
the wired LAN
Broadband modem (gateway) ✔️✔️Device used to provide highspeed data access via
your cable connection or via a telephone company's DSL connection (combines a
modem and a router into one box)
Cable modem ✔️✔️Device used to make a broadband network connection from your
home network to the ISP using your cable connection. Requires a splitter to separate
the cable TV from the home network.
DSL modem ✔️✔️Device used to make a broadband network connection from your
home network to the ISP using the phone line
Wireless-N ✔️✔️Best data transfer rates for a wireless home network, cost to switch
is minimal, and is a suitable alternative to a wired network
,SSID (Service set identifier) ✔️✔️Name used to identify your wireless network, and is
used by your access point or wireless router to establish an association - basically a
password that enables the client to join the wireless network
WEP (Wired equivalent privacy) ✔️✔️Data encryption for home network. Concerns
that this is not a strong enough encryption to secure a wireless network. But does
provide some basic security
WPA (Wi-Fi Protected Access) ✔️✔️data encryption for home network. Improved
wireless security, supports user authentication provided by 802.1x and replaces WEP
as the primary way for securing wireless transfers.
WPA2 ✔️✔️Data encryption for home network that uses a stronger encryption than
WPA and is also backward compatible with adapters using WPA. Enhances security of
WPA by incorporating authentication of the user (password requirement)
Wi-Fi protected setup ✔️✔️WPS - simplifies configuration process, enabling the user
to set up a WPA PSK without having to enter a long string of symbols, random
numbers, or letters **Susceptible to brute force attacks
SSID broadcast ✔️✔️Should be turned off - hackers can use this info to possibly gain
access to your network.
, Hotspots ✔️✔️Make it easy to gain wireless access but hackers can also be on the
same network, so it's important to have encryption turned on
MAC address filtering ✔️✔️Should be enabled so that only wireless devices that have
specific MAC addresses will be allowed to access the network
Network Address Translation ✔️✔️NAT - The outsider sees only the router IP address
because the IP addresses of the internal networking devices are not provided on the
Internet.
Firewall protection ✔️✔️Turn this on to prevent unauthorized access to your network -
Stateful Packet Inspection (SPI) is an example
Virtual private network ✔️✔️VPN - should be established when transferring sensitive
information (protects your LAN's data from being observed by outsiders). Data is
protected from an attacker.
Overloading ✔️✔️Where NAT translates the home network's private IP addresses to a
single public IP address
Port Address Translation ✔️✔️PAT - a port number is tracked with the client
computer's private address when translating to a public address
