WGU D413 PA Task Guide | Questions with Correct
Answers | Latest Update 2026 | Exam Prep | Graded A+
1. What is the primary purpose of a DHCP lease expiration?
To keep the domain name system database updated
To avoid vulnerability by hijacking an Internet Protocol (IP) address
To allow IP addresses to become available for new clients within a
specified address pool
To prevent signal attenuation in networks
2. When using a campus network, a college student consistently notices slow-
moving connectivity in the afternoon but not in the morning. What causes this
problem?
Power use on the campus is greater in the afternoon.
Network security measures are bolstered in the afternoon.
There is greater network congestion in the afternoon.
IP addresses are reassigned each day in the afternoon.
3. Describe how encryption keys contribute to the security of wireless
networks.
Encryption keys authenticate users by verifying their identities before
granting access.
Encryption keys detect unauthorized access attempts by monitoring
network traffic.
Encryption keys manage bandwidth allocation among different
devices.
, Encryption keys secure data by encoding the contents of network
packets, making them unreadable to unauthorized users.
4. In a scenario where a company wants to provide internet access to guests
without compromising its internal network security, which network
configuration would be most effective?
Using a hub to connect guest devices directly to the corporate
network.
Adding a Power over Ethernet (PoE) switch to enhance guest access.
Installing a network management appliance without any additional
security measures.
Implementing a firewall between the guest wireless access point
and the corporate network.
5. If a network is experiencing significant signal attenuation, which cabling
solution would be most effective in improving performance?
Replace the existing cables with fiber optic cables.
Change the internet-router cable to Cat 7a.
Add a Cat 5e cable to the connection.
Switch the Cat 6a cable and the Cat 5e cable.
6. A network technician is setting up a new branch for a company. The users at
the new branch will need to access resources securely as if they were at the
main location. Which of the following networking concepts would BEST
accomplish this?
Virtual network segmentation
Site-to-site VPN
Logical VLANs
, Out-of-band access
Physical network segmentation
7. If the number of collision domains in a network increases, what is the
expected impact on network traffic and performance?
Network traffic will decrease, but performance will remain the same.
Network traffic will remain unchanged, but performance will improve.
Network traffic may decrease and performance may improve due to
reduced collisions.
Network traffic will increase and performance will worsen due to
more collisions.
8. Bluetooth is another name for the wireless networking standard.
Coaxial
Wi-Fi
802.15
802.11
Database of
9. What is the role of the RADIUS server in WPA-Enterprise?
To negotiate an encryption key with the client
To act as the authenticator
To encrypt the data transmitted between the client and the AP
To authenticate the client
, 10. What is the maximum cable length for standard Ethernet cables to ensure
proper connectivity?
50 meters
100 meters
150 meters
200 meters
11. Analog cable TV carries dozens of channels over a single cable using
frequency division multiplexing
time division multiplexing
amplitude modulation
frequency modulation
12. The number of cycles that occur in one second of time is known as the?
rate of propagation
alternation rate
hertz
frequency
13. A device used to extend the range of a network by restoring signals to
maximum strength and retransmitting them is termed a
Switch
Repeater
Wireless Access Point (WAP)
Hub
Answers | Latest Update 2026 | Exam Prep | Graded A+
1. What is the primary purpose of a DHCP lease expiration?
To keep the domain name system database updated
To avoid vulnerability by hijacking an Internet Protocol (IP) address
To allow IP addresses to become available for new clients within a
specified address pool
To prevent signal attenuation in networks
2. When using a campus network, a college student consistently notices slow-
moving connectivity in the afternoon but not in the morning. What causes this
problem?
Power use on the campus is greater in the afternoon.
Network security measures are bolstered in the afternoon.
There is greater network congestion in the afternoon.
IP addresses are reassigned each day in the afternoon.
3. Describe how encryption keys contribute to the security of wireless
networks.
Encryption keys authenticate users by verifying their identities before
granting access.
Encryption keys detect unauthorized access attempts by monitoring
network traffic.
Encryption keys manage bandwidth allocation among different
devices.
, Encryption keys secure data by encoding the contents of network
packets, making them unreadable to unauthorized users.
4. In a scenario where a company wants to provide internet access to guests
without compromising its internal network security, which network
configuration would be most effective?
Using a hub to connect guest devices directly to the corporate
network.
Adding a Power over Ethernet (PoE) switch to enhance guest access.
Installing a network management appliance without any additional
security measures.
Implementing a firewall between the guest wireless access point
and the corporate network.
5. If a network is experiencing significant signal attenuation, which cabling
solution would be most effective in improving performance?
Replace the existing cables with fiber optic cables.
Change the internet-router cable to Cat 7a.
Add a Cat 5e cable to the connection.
Switch the Cat 6a cable and the Cat 5e cable.
6. A network technician is setting up a new branch for a company. The users at
the new branch will need to access resources securely as if they were at the
main location. Which of the following networking concepts would BEST
accomplish this?
Virtual network segmentation
Site-to-site VPN
Logical VLANs
, Out-of-band access
Physical network segmentation
7. If the number of collision domains in a network increases, what is the
expected impact on network traffic and performance?
Network traffic will decrease, but performance will remain the same.
Network traffic will remain unchanged, but performance will improve.
Network traffic may decrease and performance may improve due to
reduced collisions.
Network traffic will increase and performance will worsen due to
more collisions.
8. Bluetooth is another name for the wireless networking standard.
Coaxial
Wi-Fi
802.15
802.11
Database of
9. What is the role of the RADIUS server in WPA-Enterprise?
To negotiate an encryption key with the client
To act as the authenticator
To encrypt the data transmitted between the client and the AP
To authenticate the client
, 10. What is the maximum cable length for standard Ethernet cables to ensure
proper connectivity?
50 meters
100 meters
150 meters
200 meters
11. Analog cable TV carries dozens of channels over a single cable using
frequency division multiplexing
time division multiplexing
amplitude modulation
frequency modulation
12. The number of cycles that occur in one second of time is known as the?
rate of propagation
alternation rate
hertz
frequency
13. A device used to extend the range of a network by restoring signals to
maximum strength and retransmitting them is termed a
Switch
Repeater
Wireless Access Point (WAP)
Hub
