WGU D315 - PRE-ASSESSMENT: NETWORK AND SECURITY - FOUNDATIONS Actual Questions and Answers Latest Updated 2026 (Graded A+)

WGU D315 - PRE-ASSESSMENT: NETWORK AND
SECURITY - FOUNDATIONS Actual Questions and
Answers Latest Updated 2026 (Graded A+)




1. Which OSI layer is related to the function of the IP protocol suite?



a. Transport

b. Network

c. Data Link

d. Session

Answer: Network

2. Which OSI layer is responsible for organizing how bits are passed
over the physical layer between devices within the same collision
domain?

a. Frame

b. Connection

c. Transport
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, d. Data Link:

Answer Data Link

3. Which OSI layer would define the scope of a protocol that makes sure
packets of data are received correctly and resends them if they are
not?

a. Validation

b. Transmission

c. Transport

d. Connection:

Answer Transport

4. Which protocol suite performs functions of OSI layer 4?



a. IPX

b. MAC

c. CSMA/CD

d. TCP:

Answer TCP

5. Which type of Ethernet cable can maintain 10Gbps transmission
speeds through the course of its maximum 100-meter length?

a. CAT 5e

b. CAT 5
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, c. CAT 3

d. CAT 6a:

Answer CAT 6a




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, 6. Which Internet access technology uses ordinary telephone wires for data
transmission?

a. DSL

b. Cable

c. Wi-Fi

d. Hotspot:

Answer DSL

7. Which device is used to organize network cables as they run between switch- es
and other network devices?

a. Jack

b. Hub

c. Patch Panel

d. Router: Patch Panel

8. Which network device is used to connect two or more network segments by
performing OSI layer 3 functions like packet-forwarding?

a. Router

b. Repeater

c. Wire

d. Switch: Router
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