WGU D315 NETWORK AND SECURITY FOUNDATION
Updated Question and Answer | 100% Correct
Solutions | Grade A+
• 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 -✓✓ Data Link
• 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 -✓✓ Transport
• Which protocol suite performs functions of OSI layer 4?
a. IPX
b. MAC
c. CSMA/CD
d. TCP -✓✓ 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
d. CAT 6a -✓✓ CAT 6a
• Which Internet access technology uses ordinary telephone wires for data
transmission?
a. DSL
b. Cable
c. Wi-Fi
d. Hotspot -✓✓ 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 -✓✓ 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
c. Wire
d. Switch -✓✓ 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 -✓✓ 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 -✓✓ Dumb Terminals
• Which device is responsible for implementing network address translation (NAT)?
a. Modem
b. Router
c. NIC
d. Switch -✓✓ Router
• Which command produces the following output?
Non-authoritative answer:
Name: www.google.com
Address: 172.217.11.132
a. dig
b. nslookup
,d. whois
d. nmap -✓✓ nslookup
• Which command should be used to manually enter the default gateway for a
computer?
a. route
b. ipconfig
c. arp
d. netstat -✓✓ route
• Which network diagnostic tool displays the path packets take between two endpoints?
a. ifconfig
b. traceroute
c. ftp
d. nslookup -✓✓ traceroute
• Which network type is used to wire multiple PCs to a home router?
a. LAN
b. PAN
c. MAN
d. WAN -✓✓ LAN
• 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?
a. WLAN
b. WAN
c. CAN
d. SAN -✓✓ WLAN
• What type of medium is commonly used within a 1000 Mbps Ethernet network?
a. CAT 5
b. CAT5e
c. Coax
d. Wireless -✓✓ CAT5e
• Which network topology is shown in the following diagram?
a. Full mesh
b. Star
c. Bus
, d. Ring -✓✓ Full Mesh
• 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?
a. Star
b. Full Mesh
c. Ring
d. Bus -✓✓ 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?
a. Ring
b. Bus
c. Star
d. Tree -✓✓ Ring
• Which OSI layer ensures error-free packets?
a. Application
b. Transport
c. Session
d. Presentation -✓✓ Transport
• Which topology uses a switch or hub to connect to all devices in the same network?
a. Mesh
b. Ring
c. Star
d. Bus -✓✓ Star
• Which cloud service provides hardware, operating systems, and web servers but not
end-user applications?
a. IaaS
b. PaaS
c. SaaS
d. RaaS -✓✓ PaaS
• Which cloud model provides an exclusive cloud computing service environment that is
shared between two or more organizations?
a. Public
b. Private
c. Community
Updated Question and Answer | 100% Correct
Solutions | Grade A+
• 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 -✓✓ Data Link
• 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 -✓✓ Transport
• Which protocol suite performs functions of OSI layer 4?
a. IPX
b. MAC
c. CSMA/CD
d. TCP -✓✓ 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
d. CAT 6a -✓✓ CAT 6a
• Which Internet access technology uses ordinary telephone wires for data
transmission?
a. DSL
b. Cable
c. Wi-Fi
d. Hotspot -✓✓ 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 -✓✓ 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
c. Wire
d. Switch -✓✓ 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 -✓✓ 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 -✓✓ Dumb Terminals
• Which device is responsible for implementing network address translation (NAT)?
a. Modem
b. Router
c. NIC
d. Switch -✓✓ Router
• Which command produces the following output?
Non-authoritative answer:
Name: www.google.com
Address: 172.217.11.132
a. dig
b. nslookup
,d. whois
d. nmap -✓✓ nslookup
• Which command should be used to manually enter the default gateway for a
computer?
a. route
b. ipconfig
c. arp
d. netstat -✓✓ route
• Which network diagnostic tool displays the path packets take between two endpoints?
a. ifconfig
b. traceroute
c. ftp
d. nslookup -✓✓ traceroute
• Which network type is used to wire multiple PCs to a home router?
a. LAN
b. PAN
c. MAN
d. WAN -✓✓ LAN
• 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?
a. WLAN
b. WAN
c. CAN
d. SAN -✓✓ WLAN
• What type of medium is commonly used within a 1000 Mbps Ethernet network?
a. CAT 5
b. CAT5e
c. Coax
d. Wireless -✓✓ CAT5e
• Which network topology is shown in the following diagram?
a. Full mesh
b. Star
c. Bus
, d. Ring -✓✓ Full Mesh
• 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?
a. Star
b. Full Mesh
c. Ring
d. Bus -✓✓ 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?
a. Ring
b. Bus
c. Star
d. Tree -✓✓ Ring
• Which OSI layer ensures error-free packets?
a. Application
b. Transport
c. Session
d. Presentation -✓✓ Transport
• Which topology uses a switch or hub to connect to all devices in the same network?
a. Mesh
b. Ring
c. Star
d. Bus -✓✓ Star
• Which cloud service provides hardware, operating systems, and web servers but not
end-user applications?
a. IaaS
b. PaaS
c. SaaS
d. RaaS -✓✓ PaaS
• Which cloud model provides an exclusive cloud computing service environment that is
shared between two or more organizations?
a. Public
b. Private
c. Community
