WGU D315 NETWORK AND SECURITY FOUNDATIONS PRE-ASSESSMENT QUEST… EXAM
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
WGU D315 Network and
Security Foundations Pre-
Assessment Questions &
Answers 2026-2027 | Latest
Verified Answers Exam Ready With Rationales
205 QUESTIONS
DOCUMENT OVERVIEW
This document provides 205 verified questions with correct answers related to network and security
foundations, ensuring comprehensive coverage of key concepts. It serves as a valuable resource for
students preparing for certification exams in networking and security. By utilizing these questions,
learners can effectively study, review material, and reinforce their understanding of critical topics in the
field.
CONTENTS
• OSI Model • Ethernet and Cabling
• Internet Technologies • Network Devices
• Network Topologies • Cloud Computing
• Cybersecurity Attacks • Data Protection and Privacy
• Network Security Measures • Encryption and Security Protocols
• Network Troubleshooting • Access Control and Authentication
• Malware and Threats
Page 1
, E XA M Q U EST I O N S
Q1 QUESTION 1 OF 205
Which OSI layer is related to the function of the IP protocol suite?
a. Transport
b. Network
c. Data Link
d. Session
CORRECT ANSWER
Network
Q2 QUESTION 2 OF 205
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
d. Data Link
CORRECT ANSWER
Data Link
Q3 QUESTION 3 OF 205
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
CORRECT ANSWER
Transport
Page 2
, Q4 QUESTION 4 OF 205
Which protocol suite performs functions of OSI layer 4?
a. IPX
b. MAC
c. CSMA/CD
d. TCP
CORRECT ANSWER
TCP
Q5 QUESTION 5 OF 205
Which OSI layer ensures error-free packets?
a. Application
b. Transport
c. Session
d. Presentation
CORRECT ANSWER
Transport
Q6 QUESTION 6 OF 205
An unauthorized third-party has gained access to a company network.
How can they be prevented from deleting data?
a. Access controls
b. Physical controls
c. Biometrics
d. Man trap
CORRECT ANSWER
a. Access controls
Q7 QUESTION 7 OF 205
Which type of wireless security protocol is the most secure?
a. WPA2 + AES
b. WEP
c. WPA + TKIP
d. TKIP + AES
Page 3
, CORRECT ANSWER
a. WPA2 + AES
Q8 QUESTION 8 OF 205
What layer of the OSI model does a router operate?
Layer 6 (Presentation)
Layer 2 (Data Link)
Layer 1 (Physical)
Layer 3 (Network)
Layer 7 (Application)
CORRECT ANSWER
Layer 3 (Network)
Q9 QUESTION 9 OF 205
IP addressing is used on which layer of the OSI model to route source and destination IP traffic?
Layer 3
Layer 4
Layer 7
Layer 5
Layer 2
CORRECT ANSWER
Layer 3
Q10 QUESTION 10 OF 205
If a windows administrator is on a windows computer and needs to get the IP Address of the computer
they are working on what tool should the admin use.
ifconfig
ipconfig
netstat
ftp
CORRECT ANSWER
ipconfig
Page 4
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
WGU D315 Network and
Security Foundations Pre-
Assessment Questions &
Answers 2026-2027 | Latest
Verified Answers Exam Ready With Rationales
205 QUESTIONS
DOCUMENT OVERVIEW
This document provides 205 verified questions with correct answers related to network and security
foundations, ensuring comprehensive coverage of key concepts. It serves as a valuable resource for
students preparing for certification exams in networking and security. By utilizing these questions,
learners can effectively study, review material, and reinforce their understanding of critical topics in the
field.
CONTENTS
• OSI Model • Ethernet and Cabling
• Internet Technologies • Network Devices
• Network Topologies • Cloud Computing
• Cybersecurity Attacks • Data Protection and Privacy
• Network Security Measures • Encryption and Security Protocols
• Network Troubleshooting • Access Control and Authentication
• Malware and Threats
Page 1
, E XA M Q U EST I O N S
Q1 QUESTION 1 OF 205
Which OSI layer is related to the function of the IP protocol suite?
a. Transport
b. Network
c. Data Link
d. Session
CORRECT ANSWER
Network
Q2 QUESTION 2 OF 205
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
d. Data Link
CORRECT ANSWER
Data Link
Q3 QUESTION 3 OF 205
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
CORRECT ANSWER
Transport
Page 2
, Q4 QUESTION 4 OF 205
Which protocol suite performs functions of OSI layer 4?
a. IPX
b. MAC
c. CSMA/CD
d. TCP
CORRECT ANSWER
TCP
Q5 QUESTION 5 OF 205
Which OSI layer ensures error-free packets?
a. Application
b. Transport
c. Session
d. Presentation
CORRECT ANSWER
Transport
Q6 QUESTION 6 OF 205
An unauthorized third-party has gained access to a company network.
How can they be prevented from deleting data?
a. Access controls
b. Physical controls
c. Biometrics
d. Man trap
CORRECT ANSWER
a. Access controls
Q7 QUESTION 7 OF 205
Which type of wireless security protocol is the most secure?
a. WPA2 + AES
b. WEP
c. WPA + TKIP
d. TKIP + AES
Page 3
, CORRECT ANSWER
a. WPA2 + AES
Q8 QUESTION 8 OF 205
What layer of the OSI model does a router operate?
Layer 6 (Presentation)
Layer 2 (Data Link)
Layer 1 (Physical)
Layer 3 (Network)
Layer 7 (Application)
CORRECT ANSWER
Layer 3 (Network)
Q9 QUESTION 9 OF 205
IP addressing is used on which layer of the OSI model to route source and destination IP traffic?
Layer 3
Layer 4
Layer 7
Layer 5
Layer 2
CORRECT ANSWER
Layer 3
Q10 QUESTION 10 OF 205
If a windows administrator is on a windows computer and needs to get the IP Address of the computer
they are working on what tool should the admin use.
ifconfig
ipconfig
netstat
ftp
CORRECT ANSWER
ipconfig
Page 4
