WGU D315 NETWORK AND SECURITY
ACTUAL TEST QUESTIONS WITH
COMPLETE ANSWER KEY
●● Ring Topology
Answer: Each device is connected to two aadjacent devices, one on
either side
●● Bus Topology
Answer: Network in which all devices receive all messages transmitted
by a central trunk cable
●● Mesh Topology
Answer: Network where every device is connected to every other
device, ensuring redundancy
●● Hybrid Topology
Answer: Network that combines elements of multiple topologies to meet
scalability and redundancy requirements
●● Type 1 Hypervisor
Answer: Runs directly on the physical hardware
,●● Type 2 Hypervisor
Answer: Runs on top of a host operating system, like a normal
application
●● Hypervisor
Answer: Software (or firmware) that allows multiple virtual machines
(VMs) to run on one physical machine by sharing its hardware resources
(CPU, RAM, storage, network)
●● Ping command
Answer: Tests reachability and latency. Tells you if host is reachable or
not, round-trip time, packet loss.
●● traceroute
Answer: shows the path packets take to a destination. Tells you each hop
between you and destination and where delays or failures occur.
●● ipconfig
Answer: display and manage IP configuration (Windows)
●● ifconfig
Answer: Display.manage network interfaces (Linux/macOS)
, ●● netstat
Answer: Shows network connections and ports. Used for finding
suspicious connections and troubleshooting services.
●● ARP
Answer: View/manage the ARP table.
Address Resolution Protocol
●● Dig
Answer: Advanced DNS lookup tool (linux/macOS).
Shows DNS records, which dns server responded, response time.
●● nslookup
Answer: DNS query tool (windows/linux/macOS).
Checking DNS resolution and verifying DNS records.
●● route
Answer: View or modify the routing table. Shows where traffic is sent,
default gateway and static routes.
●● Telnet
Answer: Tests connectivity to a specific port. Used to test if a port is
open and debugging services.
ACTUAL TEST QUESTIONS WITH
COMPLETE ANSWER KEY
●● Ring Topology
Answer: Each device is connected to two aadjacent devices, one on
either side
●● Bus Topology
Answer: Network in which all devices receive all messages transmitted
by a central trunk cable
●● Mesh Topology
Answer: Network where every device is connected to every other
device, ensuring redundancy
●● Hybrid Topology
Answer: Network that combines elements of multiple topologies to meet
scalability and redundancy requirements
●● Type 1 Hypervisor
Answer: Runs directly on the physical hardware
,●● Type 2 Hypervisor
Answer: Runs on top of a host operating system, like a normal
application
●● Hypervisor
Answer: Software (or firmware) that allows multiple virtual machines
(VMs) to run on one physical machine by sharing its hardware resources
(CPU, RAM, storage, network)
●● Ping command
Answer: Tests reachability and latency. Tells you if host is reachable or
not, round-trip time, packet loss.
●● traceroute
Answer: shows the path packets take to a destination. Tells you each hop
between you and destination and where delays or failures occur.
●● ipconfig
Answer: display and manage IP configuration (Windows)
●● ifconfig
Answer: Display.manage network interfaces (Linux/macOS)
, ●● netstat
Answer: Shows network connections and ports. Used for finding
suspicious connections and troubleshooting services.
●● ARP
Answer: View/manage the ARP table.
Address Resolution Protocol
●● Dig
Answer: Advanced DNS lookup tool (linux/macOS).
Shows DNS records, which dns server responded, response time.
●● nslookup
Answer: DNS query tool (windows/linux/macOS).
Checking DNS resolution and verifying DNS records.
●● route
Answer: View or modify the routing table. Shows where traffic is sent,
default gateway and static routes.
●● Telnet
Answer: Tests connectivity to a specific port. Used to test if a port is
open and debugging services.
