WGU C172 EXAM STUDY GUIDE EXAMS SET COMPLETE QUESTIONS AND ANSWERS 2026 VIEW AHEAD EXAM.

WGU C172 EXAM STUDY GUIDE EXAMS
SET COMPLETE QUESTIONS AND
ANSWERS 2026 VIEW AHEAD EXAM.


⩥ Data Link Layer. Answer: ARP, PPP, HDLC, and LLC are some of
the protocols used by this layer.


⩥ Data Link Layer. Answer: The layer that is the "language" of the
network.


⩥ Network Layer. Answer: Provides routing decisions. NAT, PAT


⩥ Data Link Layer. Answer: The "switching" layer.


⩥ Network Layer. Answer: IP, IPX, IPSec, RIP, IPv4, IPv6, ICMP


⩥ Data Link Layer. Answer: Frames


⩥ Transport Layer. Answer: The layer that transports segments of data
across the network


⩥ Data Link Layer. Answer: The layer that sees the MAC addresses
of the source and destination of network traffic.

, ⩥ Application Layer. Answer: Network applications are a physical
component/function of this layer.


⩥ Data Link Layer. Answer: NIC FUNCTIONS at this layer. Bits pass
over physical layer between devices on a LAN (collision domain).


⩥ Network Layer. Answer: Router and Layer 3 switches.


⩥ Presentation Layer. Answer: Secure Socket Layer is a protocol at
this layer.


⩥ Application Layer. Answer: The layer a user can see.


⩥ Network Layer. Answer: The layer that can see the IP addresses of
the source and destination of network traffic.


⩥ Session Layer. Answer: The layer that handles communication
management (start, stop, restart)


⩥ Data Link Layer. Answer: ARP, PPP, HDLC, LLC
Communication at MAC-address level - forwards packets on Layer 2
devices, like a bridge.


⩥ Physical Layer. Answer: Bits