WGU C172 NETWORK AND SECURITY FOUNDATIONS PA & OA QUESTIONS & ANS… 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 C172 Network and
Security Foundations PA &
OA Questions & Answers
2026-2027 | Complete Exam
Prep
Verified Answers Exam Ready With Rationales
233 QUESTIONS
DOCUMENT OVERVIEW
This document contains 233 verified questions with correct answers provided, focusing on network and
security foundations. It offers a comprehensive overview of essential concepts in networking, making it
suitable for study, review, and certification preparation. Students can utilize this resource to reinforce their
understanding and ensure mastery of critical networking principles.
CONTENTS
• Local Area Networks • Network Topologies
• OSI Model Overview • OSI Model Layers
• Network Troubleshooting • Network Protocols
• Packet Structure • Wireless Networking
• Network Security • Network Cables
• IP Addressing • Wireless Standards
• Broadband Connections • Network Devices
• Home Network Planning
Page 1
, E XA M Q U EST I O N S
Q1 QUESTION 1 OF 233
It is a network of users that share computer resources in a limited area.
CORRECT ANSWER
LAN
Q2 QUESTION 2 OF 233
Local Area Network
CORRECT ANSWER
LAN
Q3 QUESTION 3 OF 233
How are Local Area Networks defined?
CORRECT ANSWER
In terms of protocol and the topology used for accessing the network.
Q4 QUESTION 4 OF 233
A set of rules established for users to exchange information
CORRECT ANSWER
Protocol
Q5 QUESTION 5 OF 233
What are the most common topologies for LANs?
CORRECT ANSWER
Ring, Bus, and Star
Page 2
, Q6 QUESTION 6 OF 233
What are the disadvantages of the Token Ring system?
CORRECT ANSWER
1. If an error changes the token pattern, it can cause the token to stop circulating.
Q7 QUESTION 7 OF 233
What is a disadvantage of the Token Ring system from the troubleshooting and maintenance?
CORRECT ANSWER
The token ring path must be temporarily broken or interrupted if a computer or any device on the network is to be
removed or added to the network.
Q8 QUESTION 8 OF 233
What is a solution to the troubleshooting and maintenance disadvantages of the Token Ring system?
CORRECT ANSWER
Connect each computer or device on the network to a central token ring hub.
Q9 QUESTION 9 OF 233
Topology whereas the computers share the media or coaxial cable for data transmission.
CORRECT ANSWER
Bus topology
Q10 QUESTION 10 OF 233
What are the disadvantages of a bus topology?
CORRECT ANSWER
"1. Data can be corrupted if ore than one device on the network transmits at the same time and will have to be
resubmitted.
2. The use of the shared coaxial cable prevents data transmission from being very bandwidth-efficient."
Q11 QUESTION 11 OF 233
What is the most common topology used in today's LANs?
Page 3
, CORRECT ANSWER
Star topology
Q12 QUESTION 12 OF 233
What is an advantage of the star topology from the troubleshooting and maintenance?
CORRECT ANSWER
A device can be removed or added without disrupting other devices on the network
Q13 QUESTION 13 OF 233
Network File system (NFS) and Structured Query Language (SQL) are examples of which osi model layer?
CORRECT ANSWER
sessioN
Q14 QUESTION 14 OF 233
A field used to bring the total number of bytes up to the minimum of 46 if the data field is less than 46 bytes
CORRECT ANSWER
The pad of the Ethernet packet frame
Q15 QUESTION 15 OF 233
Uses Internet Control Message Protocol (ICMP) echo request and replies to test that a device on the network
is reachable
CORRECT ANSWER
the ping command
Q16 QUESTION 16 OF 233
A mac address does not provide what?
CORRECT ANSWER
the network location, what LAN, or in which building, city, or country the network resides
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 C172 Network and
Security Foundations PA &
OA Questions & Answers
2026-2027 | Complete Exam
Prep
Verified Answers Exam Ready With Rationales
233 QUESTIONS
DOCUMENT OVERVIEW
This document contains 233 verified questions with correct answers provided, focusing on network and
security foundations. It offers a comprehensive overview of essential concepts in networking, making it
suitable for study, review, and certification preparation. Students can utilize this resource to reinforce their
understanding and ensure mastery of critical networking principles.
CONTENTS
• Local Area Networks • Network Topologies
• OSI Model Overview • OSI Model Layers
• Network Troubleshooting • Network Protocols
• Packet Structure • Wireless Networking
• Network Security • Network Cables
• IP Addressing • Wireless Standards
• Broadband Connections • Network Devices
• Home Network Planning
Page 1
, E XA M Q U EST I O N S
Q1 QUESTION 1 OF 233
It is a network of users that share computer resources in a limited area.
CORRECT ANSWER
LAN
Q2 QUESTION 2 OF 233
Local Area Network
CORRECT ANSWER
LAN
Q3 QUESTION 3 OF 233
How are Local Area Networks defined?
CORRECT ANSWER
In terms of protocol and the topology used for accessing the network.
Q4 QUESTION 4 OF 233
A set of rules established for users to exchange information
CORRECT ANSWER
Protocol
Q5 QUESTION 5 OF 233
What are the most common topologies for LANs?
CORRECT ANSWER
Ring, Bus, and Star
Page 2
, Q6 QUESTION 6 OF 233
What are the disadvantages of the Token Ring system?
CORRECT ANSWER
1. If an error changes the token pattern, it can cause the token to stop circulating.
Q7 QUESTION 7 OF 233
What is a disadvantage of the Token Ring system from the troubleshooting and maintenance?
CORRECT ANSWER
The token ring path must be temporarily broken or interrupted if a computer or any device on the network is to be
removed or added to the network.
Q8 QUESTION 8 OF 233
What is a solution to the troubleshooting and maintenance disadvantages of the Token Ring system?
CORRECT ANSWER
Connect each computer or device on the network to a central token ring hub.
Q9 QUESTION 9 OF 233
Topology whereas the computers share the media or coaxial cable for data transmission.
CORRECT ANSWER
Bus topology
Q10 QUESTION 10 OF 233
What are the disadvantages of a bus topology?
CORRECT ANSWER
"1. Data can be corrupted if ore than one device on the network transmits at the same time and will have to be
resubmitted.
2. The use of the shared coaxial cable prevents data transmission from being very bandwidth-efficient."
Q11 QUESTION 11 OF 233
What is the most common topology used in today's LANs?
Page 3
, CORRECT ANSWER
Star topology
Q12 QUESTION 12 OF 233
What is an advantage of the star topology from the troubleshooting and maintenance?
CORRECT ANSWER
A device can be removed or added without disrupting other devices on the network
Q13 QUESTION 13 OF 233
Network File system (NFS) and Structured Query Language (SQL) are examples of which osi model layer?
CORRECT ANSWER
sessioN
Q14 QUESTION 14 OF 233
A field used to bring the total number of bytes up to the minimum of 46 if the data field is less than 46 bytes
CORRECT ANSWER
The pad of the Ethernet packet frame
Q15 QUESTION 15 OF 233
Uses Internet Control Message Protocol (ICMP) echo request and replies to test that a device on the network
is reachable
CORRECT ANSWER
the ping command
Q16 QUESTION 16 OF 233
A mac address does not provide what?
CORRECT ANSWER
the network location, what LAN, or in which building, city, or country the network resides
Page 4
