WGU C172 Network And Security Foundations
Pre-Assessment Network and Security -
Foundations - C172 - Most Import Materials for
Final Objective Assessment Test |(Q&A) 2026
UPDATE
Which OSI(Open Systems Interconnection model) layer is related to the function of
the IP protocol suite?
Network
Which OSI(Open Systems Interconnection model) layer is responsible for organizing
how bits are passed over the physical layer between devices within the same
collision domain?
Data link
Which OSI(Open Systems Interconnection model) layer would define the scope of a
protocol that makes sure packets of data are received correctly and resends them if
they are not?
Transport
Which protocol suite performs functions of OSI(Open Systems Interconnection
model) layer 4?
TCP(Transmission Control Protocol)
Which type of Ethernet cable can maintain 10Gbps transmission speeds through the
course of its maximum 100-meter length?
CAT 6a
Which Internet access technology uses ordinary telephone wires for data
transmission?
DSL(Digital Subscriber Line)
,Which device is used to organize network cables as they run between switches and
other network devices?
Patch panel
Which network device is used to connect two or more network segments by
performing OSI layer 3 functions like packet-forwarding?
Router
Which network device is used to convert between digital information from a LAN and
analog signals for
transmission over a standard telephone wire?
Modem
Which device could be used to send commands to the mainframe for remote
execution in early mainframe
installations?
Dumb terminals
Which device is responsible for implementing network address translation (NAT)?
Router
Which command produces the following output?
Non-authoritative answer:
Name: www.google.com
Address: 172.217.11.132
nslookup
Which command should be used to manually enter the default gateway for a
computer?
route
Which network diagnostic tool displays the path packets take between two
endpoints?
raceroute
Which network type is used to wire multiple PCs to a home router?
LAN(Local Area Network)
, An office's infrastructure connects network devices and printers through a central
access point without the use of cabling.
Which network type does this office use?
WLAN(Wireless Local Area Network)
What type of medium is commonly used within a 1000 Mbps Ethernet network?
CAT5e
Which network topology is shown in the following diagram?
Full mesh
Which networking standard uses UTP(Unshielded Twisted Pair) cable and
CSMA/CD(Carrier-sense multiple access with collision detection) to manage
connected devices' access to the wire?
Ethernet
Which network topology is being implemented when each node connects to exactly
two other nodes,
forming a single continuous pathway for signals through each node?
Ring
In which physical LAN topology are nodes connected to each other with a backbone
cable that loops
around and ends at the same point it started?
Ring
Which OSI(Open Systems Interconnection) layer ensures error-free packets?
Transport
Which topology uses a switch or hub to connect to all devices in the same network?
Star
Which cloud service provides hardware, operating systems, and web servers but not
end-user
applications?
PaaS (Platform-as-a-service)
Pre-Assessment Network and Security -
Foundations - C172 - Most Import Materials for
Final Objective Assessment Test |(Q&A) 2026
UPDATE
Which OSI(Open Systems Interconnection model) layer is related to the function of
the IP protocol suite?
Network
Which OSI(Open Systems Interconnection model) layer is responsible for organizing
how bits are passed over the physical layer between devices within the same
collision domain?
Data link
Which OSI(Open Systems Interconnection model) layer would define the scope of a
protocol that makes sure packets of data are received correctly and resends them if
they are not?
Transport
Which protocol suite performs functions of OSI(Open Systems Interconnection
model) layer 4?
TCP(Transmission Control Protocol)
Which type of Ethernet cable can maintain 10Gbps transmission speeds through the
course of its maximum 100-meter length?
CAT 6a
Which Internet access technology uses ordinary telephone wires for data
transmission?
DSL(Digital Subscriber Line)
,Which device is used to organize network cables as they run between switches and
other network devices?
Patch panel
Which network device is used to connect two or more network segments by
performing OSI layer 3 functions like packet-forwarding?
Router
Which network device is used to convert between digital information from a LAN and
analog signals for
transmission over a standard telephone wire?
Modem
Which device could be used to send commands to the mainframe for remote
execution in early mainframe
installations?
Dumb terminals
Which device is responsible for implementing network address translation (NAT)?
Router
Which command produces the following output?
Non-authoritative answer:
Name: www.google.com
Address: 172.217.11.132
nslookup
Which command should be used to manually enter the default gateway for a
computer?
route
Which network diagnostic tool displays the path packets take between two
endpoints?
raceroute
Which network type is used to wire multiple PCs to a home router?
LAN(Local Area Network)
, An office's infrastructure connects network devices and printers through a central
access point without the use of cabling.
Which network type does this office use?
WLAN(Wireless Local Area Network)
What type of medium is commonly used within a 1000 Mbps Ethernet network?
CAT5e
Which network topology is shown in the following diagram?
Full mesh
Which networking standard uses UTP(Unshielded Twisted Pair) cable and
CSMA/CD(Carrier-sense multiple access with collision detection) to manage
connected devices' access to the wire?
Ethernet
Which network topology is being implemented when each node connects to exactly
two other nodes,
forming a single continuous pathway for signals through each node?
Ring
In which physical LAN topology are nodes connected to each other with a backbone
cable that loops
around and ends at the same point it started?
Ring
Which OSI(Open Systems Interconnection) layer ensures error-free packets?
Transport
Which topology uses a switch or hub to connect to all devices in the same network?
Star
Which cloud service provides hardware, operating systems, and web servers but not
end-user
applications?
PaaS (Platform-as-a-service)
