WGU C172 Network And
Security Foundations
Pre-Assessment Test
Questions and Complete
Solutions Graded A+
Which OSI(Open Systems Interconnection model) layer is related to the function of the IP protocol
suite? - Answer: 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? - Answer: 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? - Answer: Transport
Which protocol suite performs functions of OSI(Open Systems Interconnection model) layer 4? - Answer:
TCP(Transmission Control Protocol)
Which type of Ethernet cable can maintain 10Gbps transmission speeds through the course of its
maximum 100-meter length? - Answer: CAT 6a
Which Internet access technology uses ordinary telephone wires for data transmission? - Answer:
DSL(Digital Subscriber Line)
Which device is used to organize network cables as they run between switches and other network
devices? - Answer: Patch panel
, Which network device is used to connect two or more network segments by performing OSI layer 3
functions like packet-forwarding? - 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? - Answer: Modem
Which device could be used to send commands to the mainframe for remote execution in early
mainframe
installations? - Answer: Dumb terminals
Which device is responsible for implementing network address translation (NAT)? - Answer: Router
Which command produces the following output?
Non-authoritative answer:
Name: www.google.com
Address: 172.217.11.132 - Answer: nslookup
Which command should be used to manually enter the default gateway for a computer? - Answer: route
Which network diagnostic tool displays the path packets take between two endpoints? - Answer:
raceroute
Which network type is used to wire multiple PCs to a home router? - Answer: 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? - Answer: WLAN(Wireless Local Area Network)
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