Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024
WGU D315 - PRE-ASSESSMENT: NETWORK
AND SECURITY – FOUNDATIONS EXAM
QUESTIONS AND ANSWERS
Which OSI layer is related to the function of the IP protocol suite?
a. Transport
b. Network
c. Data Link
d. Session - ANSWER✔✔-Network
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 - ANSWER✔✔-Data Link
Copyright ©Stuvia International BV 2010-2024 Page 1/75
,Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024
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
Which protocol suite performs functions of OSI layer 4?
a. IPX
b. MAC
c. CSMA/CD
d. TCP - ANSWER✔✔-TCP
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
c. CAT 3
Copyright ©Stuvia International BV 2010-2024 Page 2/75
,Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024
d. CAT 6a - ANSWER✔✔-CAT 6a
Which Internet access technology uses ordinary telephone wires for data transmission?
a. DSL
b. Cable
c. Wi-Fi
d. Hotspot - ANSWER✔✔-DSL
Which device is used to organize network cables as they run between switches and other network
devices?
a. Jack
b. Hub
c. Patch Panel
d. Router - ANSWER✔✔-Patch Panel
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
Copyright ©Stuvia International BV 2010-2024 Page 3/75
, Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024
c. Wire
d. Switch - ANSWER✔✔-Router
Which network device is used to convert between digital information from a LAN and analog signals for
transmission over a standard telephone wire?
a. Repeater
b. Modem
c. Signal Generator
d. Bit Stretcher - ANSWER✔✔-Modem
Which device could be used to send commands to the mainframe for remote execution in early
mainframe installations?
a. Distributed Screens
b. Dumb Terminals
c. Execution Displays
d. Command Receivers - ANSWER✔✔-Dumb Terminals
Which device is responsible for implementing network address translation (NAT)?
a. Modem
Copyright ©Stuvia International BV 2010-2024 Page 4/75
WGU D315 - PRE-ASSESSMENT: NETWORK
AND SECURITY – FOUNDATIONS EXAM
QUESTIONS AND ANSWERS
Which OSI layer is related to the function of the IP protocol suite?
a. Transport
b. Network
c. Data Link
d. Session - ANSWER✔✔-Network
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 - ANSWER✔✔-Data Link
Copyright ©Stuvia International BV 2010-2024 Page 1/75
,Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024
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
Which protocol suite performs functions of OSI layer 4?
a. IPX
b. MAC
c. CSMA/CD
d. TCP - ANSWER✔✔-TCP
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
c. CAT 3
Copyright ©Stuvia International BV 2010-2024 Page 2/75
,Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024
d. CAT 6a - ANSWER✔✔-CAT 6a
Which Internet access technology uses ordinary telephone wires for data transmission?
a. DSL
b. Cable
c. Wi-Fi
d. Hotspot - ANSWER✔✔-DSL
Which device is used to organize network cables as they run between switches and other network
devices?
a. Jack
b. Hub
c. Patch Panel
d. Router - ANSWER✔✔-Patch Panel
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
Copyright ©Stuvia International BV 2010-2024 Page 3/75
, Copyright © KAYLIN 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH NOVEMBER, 2024
c. Wire
d. Switch - ANSWER✔✔-Router
Which network device is used to convert between digital information from a LAN and analog signals for
transmission over a standard telephone wire?
a. Repeater
b. Modem
c. Signal Generator
d. Bit Stretcher - ANSWER✔✔-Modem
Which device could be used to send commands to the mainframe for remote execution in early
mainframe installations?
a. Distributed Screens
b. Dumb Terminals
c. Execution Displays
d. Command Receivers - ANSWER✔✔-Dumb Terminals
Which device is responsible for implementing network address translation (NAT)?
a. Modem
Copyright ©Stuvia International BV 2010-2024 Page 4/75
