WGU D315 2026 DATA MANAGEMENT
PRINCIPLES REVIEW MANUAL
◉Which OSI layer is organizing the bits over the physical layer
between devices in the same collision domain?. Answer: Data Link 2
- They are in the same Frame
◉Which OSI layer is a Switch at?. Answer: Data Link 2
◉Which OSI layer is a WAP (Wireless Access Point) at?. Answer:
Data Link 2
◉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
PRINCIPLES REVIEW MANUAL
◉Which OSI layer is organizing the bits over the physical layer
between devices in the same collision domain?. Answer: Data Link 2
- They are in the same Frame
◉Which OSI layer is a Switch at?. Answer: Data Link 2
◉Which OSI layer is a WAP (Wireless Access Point) at?. Answer:
Data Link 2
◉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