WGU D315 - Network and Security Foundations EXAM--REAL
ACTUAL EXAM -LATEST UPDATE 2025 | COMPLETE
QUESTIONS WITH CORRECT DETAILED ANSWERS| RATED
100% CORRECT | ALREADY GRADED A+ | GUARANTEED
PASS!!
Physical layer - (answers)Layer representing the physical medium connecting
computers
Wiretapping - (answers)Attack involving tampering with physical cables to eavesdrop
Copper-based wiring - (answers)Susceptible to electronic sniffing due to
electromagnetic field
Data Link layer - (answers)Layer defining how computers connect to the network
Network layer - (answers)Enables data exchange between computers on different
networks
IP and ICMP protocols - (answers)Protocols found at the Network layer in the TCP/IP
suite
Ping attacks - (answers)Intended to disrupt communication on the network
Spoofing - (answers)Impersonating another computer's IP or MAC address
Transport layer - (answers)Layer with TCP and UDP protocols refining addressing using
port numbers
Port number - (answers)16-bit number identifying a service on a host
Session layer - (answers)Allows differentiation between connections within a service on
the same host
Presentation layer - (answers)Serves as a translation and security layer between
applications
Encoding - (answers)Process of writing data in a particular manner, such as a
standardized file format
Application layer - (answers)Defines how users connect with application services
through protocols
, Unshielded twisted pair cables (UTP cables) - (answers)Created by twisting pairs of
wires to protect and cancel out interference
RJ45 and RJ11 connectors - (answers)Most common connectors for ethernet and
phone wires, respectively
Coaxial cables - (answers)Analog cables with a metal shield to block signal interference
Fiber cables - (answers)Use glass or plastic threads to transfer data using light
Single-mode cables - (answers)Made up of one single glass or plastic fiber, carrying
higher bandwidth for longer distances
Multimode fibers - (answers)Highly effective over medium distances and generally used
within a LAN
Crossover cables - (answers)Used to connect two computing devices of the same type
directly to each other
Patch cables - (answers)Used to connect a device to a wall outlet or to wire servers in a
rack to the top-of-rack switch
ping - (answers)Basic tool for testing connectivity to other hosts using ICMP echo
requests
Traceroute/tracert - (answers)Used to trace the route an IP packet takes to a destination
Tracepath - (answers)Displays the path taken by a packet from its source to its
destination
ipconfig - (answers)Provides the user with the IP, subnet mask, and default gateway for
each network adapter
ifconfig - (answers)Used to configure the kernel network interfaces, primarily in Linux
ARP (Address Resolution Protocol) - (answers)Displays the IP to physical (MAC)
address mappings for hosts
Netstat (network statistics) - (answers)Displays information about active ports and their
state
Nslookup (name server lookup) - (answers)Displays DNS information and troubleshoots
DNS problems
ACTUAL EXAM -LATEST UPDATE 2025 | COMPLETE
QUESTIONS WITH CORRECT DETAILED ANSWERS| RATED
100% CORRECT | ALREADY GRADED A+ | GUARANTEED
PASS!!
Physical layer - (answers)Layer representing the physical medium connecting
computers
Wiretapping - (answers)Attack involving tampering with physical cables to eavesdrop
Copper-based wiring - (answers)Susceptible to electronic sniffing due to
electromagnetic field
Data Link layer - (answers)Layer defining how computers connect to the network
Network layer - (answers)Enables data exchange between computers on different
networks
IP and ICMP protocols - (answers)Protocols found at the Network layer in the TCP/IP
suite
Ping attacks - (answers)Intended to disrupt communication on the network
Spoofing - (answers)Impersonating another computer's IP or MAC address
Transport layer - (answers)Layer with TCP and UDP protocols refining addressing using
port numbers
Port number - (answers)16-bit number identifying a service on a host
Session layer - (answers)Allows differentiation between connections within a service on
the same host
Presentation layer - (answers)Serves as a translation and security layer between
applications
Encoding - (answers)Process of writing data in a particular manner, such as a
standardized file format
Application layer - (answers)Defines how users connect with application services
through protocols
, Unshielded twisted pair cables (UTP cables) - (answers)Created by twisting pairs of
wires to protect and cancel out interference
RJ45 and RJ11 connectors - (answers)Most common connectors for ethernet and
phone wires, respectively
Coaxial cables - (answers)Analog cables with a metal shield to block signal interference
Fiber cables - (answers)Use glass or plastic threads to transfer data using light
Single-mode cables - (answers)Made up of one single glass or plastic fiber, carrying
higher bandwidth for longer distances
Multimode fibers - (answers)Highly effective over medium distances and generally used
within a LAN
Crossover cables - (answers)Used to connect two computing devices of the same type
directly to each other
Patch cables - (answers)Used to connect a device to a wall outlet or to wire servers in a
rack to the top-of-rack switch
ping - (answers)Basic tool for testing connectivity to other hosts using ICMP echo
requests
Traceroute/tracert - (answers)Used to trace the route an IP packet takes to a destination
Tracepath - (answers)Displays the path taken by a packet from its source to its
destination
ipconfig - (answers)Provides the user with the IP, subnet mask, and default gateway for
each network adapter
ifconfig - (answers)Used to configure the kernel network interfaces, primarily in Linux
ARP (Address Resolution Protocol) - (answers)Displays the IP to physical (MAC)
address mappings for hosts
Netstat (network statistics) - (answers)Displays information about active ports and their
state
Nslookup (name server lookup) - (answers)Displays DNS information and troubleshoots
DNS problems
