WGU D315 Network and
Security Foundation
Exam Questions and
Complete Solutions
Graded A+
Which OSI layer is related to the IP protocol - Answer: Network 3
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
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
Cloud - where do I manage the OS Iaas or Paas? - Answer: Iaas
What do I manage on Paas (2) - Answer: Application and Data
Name the 3 CIA triades - Answer: Integrity, Availability and Confidentiality
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