WGU C172 NETWORK AND SECURITY (LATEST 2025 /
2026 UPDATE) NETWORK AND SECURITY | QUESTIONS
& ANSWERS | GRADE A | 100% CORRECT
Terms in this set (91)
All devices share a single cable; one
break can bring down the network. Rare
Bus Topology (Network today.
Topologies)
Ring Topology (Network Devices form a circle; each passes data
to the next. One failure can break the
Topologies)
ring.
Star Topology (Network All devices connect to a central
switch/hub. Most common topology
Topologies)
today.
Mesh Topology (Network Every device connects to every other.
Offers high redundancy and fault
Topologies)
tolerance.
Client-Server Model Clients request services and servers provide them.
(Network Architecture) Centralized (e.g., web server).
Each device acts as both client and
server. Common in file sharing apps.
Peer-to-Peer Model
(Network Architecture)
1
, Centralized Architecture
One central system controls access, resources, and processing.
(Network Architecture)
Decentralized Tasks and data are distributed. Offers fault tolerance and
Architecture (Network redundancy.
Architecture)
ping (Network Tests network connectivity using ICMP (Internet Control
Commands) Message Protocol) Echo Requests.
traceroute (Network Displays the path a packet takes to its destination.
Commands)
ipconfig (Network Displays IP configuration (Windows).
Commands)
ifconfig (Network Displays IP configuration (Linux/macOS).
Commands)
netstat (Network Shows active TCP (Transmission Control Protocol) / UDP (User
Commands) Datagram Protocol) connections.
nmap (Network Scans networks for hosts, services, and open ports.
Commands)
arp -a (Address Resolution Find MAC address from an IP address
Protocol)
(Network Commands)
Type 1 Hypervisor VM runs directly on hardware without an OS. Used in enterprise
(Virtualization) (e.g., ESXi).
Type 2 Hypervisor VM runs on top of a host OS. Used for personal or test
(Virtualization) environments (e.g., VirtualBox).
2
2026 UPDATE) NETWORK AND SECURITY | QUESTIONS
& ANSWERS | GRADE A | 100% CORRECT
Terms in this set (91)
All devices share a single cable; one
break can bring down the network. Rare
Bus Topology (Network today.
Topologies)
Ring Topology (Network Devices form a circle; each passes data
to the next. One failure can break the
Topologies)
ring.
Star Topology (Network All devices connect to a central
switch/hub. Most common topology
Topologies)
today.
Mesh Topology (Network Every device connects to every other.
Offers high redundancy and fault
Topologies)
tolerance.
Client-Server Model Clients request services and servers provide them.
(Network Architecture) Centralized (e.g., web server).
Each device acts as both client and
server. Common in file sharing apps.
Peer-to-Peer Model
(Network Architecture)
1
, Centralized Architecture
One central system controls access, resources, and processing.
(Network Architecture)
Decentralized Tasks and data are distributed. Offers fault tolerance and
Architecture (Network redundancy.
Architecture)
ping (Network Tests network connectivity using ICMP (Internet Control
Commands) Message Protocol) Echo Requests.
traceroute (Network Displays the path a packet takes to its destination.
Commands)
ipconfig (Network Displays IP configuration (Windows).
Commands)
ifconfig (Network Displays IP configuration (Linux/macOS).
Commands)
netstat (Network Shows active TCP (Transmission Control Protocol) / UDP (User
Commands) Datagram Protocol) connections.
nmap (Network Scans networks for hosts, services, and open ports.
Commands)
arp -a (Address Resolution Find MAC address from an IP address
Protocol)
(Network Commands)
Type 1 Hypervisor VM runs directly on hardware without an OS. Used in enterprise
(Virtualization) (e.g., ESXi).
Type 2 Hypervisor VM runs on top of a host OS. Used for personal or test
(Virtualization) environments (e.g., VirtualBox).
2
