WGU C172 NETWORK AND SECURITY
FOUNDATIONS EXAM STUDY SHEET 2026 TEST
PAPER
◉ Nmap (Network Mapper) Answer: * Scans networks to find hosts
and open ports
* Helps determine what is deployed on a network
* Not native to either Linux or Windows but can be used with both
◉ Tcpdump Answer: * Displays packets that are being transmitted
over the network system
* Is a form of protocol analyzer
* Shows the contents of network packets in human-readable form
◉ Telnet/SSH Answer: * Allows a user to manage accounts and
devices remotely
* Can be encrypted to secure data from eavesdropping
,* Can be encrypted, as well
◉ IP addresses to MAC addresses (Q/A) Answer: What does the
address resolution protocol (ARP) cache map?
◉ Secure shell (SSH) (Q/A) Answer: Which protocol provides
remote access over encrypted connections?
◉ Modem, Hub, Repeater Answer: Which Network device(s)
operates at layer 1 of the OSI model?
◉ Switch, Bridge, and Modem (Q/A) Answer: Which Network
device(s) operates at layer 2 of the OSI model?
◉ Router and Switch (Q/A) Answer: Which Network device(s)
operates at layer 3 of the OSI model?
◉ Session (Q/A) Answer: Which layer of the OSI model establishes,
manages, and terminates connections?
◉ Data Link (Q/A) Answer: Which layer of the OSI model does a
bridge use to make decisions about forwarding data packets?
, ◉ Network (Q/A) Answer: Which transmission control
protocol/internet protocol (TCP/IP) layer performs addressing and
routing?
◉ Personal Area Network (PAN) Answer: A network that is centered
around a person and their devices..
◉ Local Area Network (LAN) Answer: A network that consists of
computers connected within a limited area. Use Ethernet, Wi-Fi, or
both to connect the network devices.e
◉ Wireless Local Area Network (WLAN) Answer: A LAN with
wireless connectivity
◉ Storage Area Network (SAN) Answer: A network that allows
access to storage devices specifically instead of the more general
networking that can be used for any purpose.
◉ Campus Area Network (CAN) Answer: A network that provides
networking of multiple LANs across a limited area, like a university
campus or a group of buildings owned by a company
◉ Metropolitan Area Network (MAN) Answer: A network that
provides networking across a larger area, such as a whole city or the
FOUNDATIONS EXAM STUDY SHEET 2026 TEST
PAPER
◉ Nmap (Network Mapper) Answer: * Scans networks to find hosts
and open ports
* Helps determine what is deployed on a network
* Not native to either Linux or Windows but can be used with both
◉ Tcpdump Answer: * Displays packets that are being transmitted
over the network system
* Is a form of protocol analyzer
* Shows the contents of network packets in human-readable form
◉ Telnet/SSH Answer: * Allows a user to manage accounts and
devices remotely
* Can be encrypted to secure data from eavesdropping
,* Can be encrypted, as well
◉ IP addresses to MAC addresses (Q/A) Answer: What does the
address resolution protocol (ARP) cache map?
◉ Secure shell (SSH) (Q/A) Answer: Which protocol provides
remote access over encrypted connections?
◉ Modem, Hub, Repeater Answer: Which Network device(s)
operates at layer 1 of the OSI model?
◉ Switch, Bridge, and Modem (Q/A) Answer: Which Network
device(s) operates at layer 2 of the OSI model?
◉ Router and Switch (Q/A) Answer: Which Network device(s)
operates at layer 3 of the OSI model?
◉ Session (Q/A) Answer: Which layer of the OSI model establishes,
manages, and terminates connections?
◉ Data Link (Q/A) Answer: Which layer of the OSI model does a
bridge use to make decisions about forwarding data packets?
, ◉ Network (Q/A) Answer: Which transmission control
protocol/internet protocol (TCP/IP) layer performs addressing and
routing?
◉ Personal Area Network (PAN) Answer: A network that is centered
around a person and their devices..
◉ Local Area Network (LAN) Answer: A network that consists of
computers connected within a limited area. Use Ethernet, Wi-Fi, or
both to connect the network devices.e
◉ Wireless Local Area Network (WLAN) Answer: A LAN with
wireless connectivity
◉ Storage Area Network (SAN) Answer: A network that allows
access to storage devices specifically instead of the more general
networking that can be used for any purpose.
◉ Campus Area Network (CAN) Answer: A network that provides
networking of multiple LANs across a limited area, like a university
campus or a group of buildings owned by a company
◉ Metropolitan Area Network (MAN) Answer: A network that
provides networking across a larger area, such as a whole city or the
