WGU D315 NETWORK AND SECURITY TEST PAPER QUESTIONS AND SOLUTIONS 2026 100% CORRECT.

WGU D315 NETWORK AND SECURITY TEST
PAPER QUESTIONS AND SOLUTIONS 2026
100% CORRECT.



⫸ Which OSI layer is a router at Answer: Network (3)


⫸ TCP protocol is on what OSI layer Answer: Transport (4)


⫸ OSI layer 1 Answer: Physical Layer (Cable, Hubs, Repeaters)


⫸ OSI layer 2 Answer: Data Link Layer (Frame, Switch, PPP,
Ethernet)


⫸ OSI layer 3 Answer: Network Layer (Moves packets, IP)


⫸ OSI layer 4 Answer: Transport Layer (TCP, end to end
connection)


⫸ OSI Layer 5 Answer: Session Layer (API, Sockets, Synch and
send to port)


⫸ OSI layer 6 Answer: Presentation layer (Syntax and encryption
layer, SSL, SSH, JPEG)

, ⫸ OSI layer 7 Answer: Application layer (end user layer, http,
applications)


⫸ Network Typology point to point Answer: Two devices connect
directly


⫸ Network Typology bus Answer: All devices connect to a central
main line


⫸ Network Typology Ring Answer: All devices have two
connections and form an endless ring


⫸ Network Typology Star Answer: All devices connect to a central
point


⫸ Network Typology Tree Answer: Multiple devices connect
together (on a switch) and then the switches are connected with each
other


⫸ Network Typology Mesh Answer: All devices connect directly to
each other


⫸ Network Typology Hybrid Answer: Multiple Network Typology
within the network