WGU D315 - PRE-ASSESSMENT: NETWORK AND SECURITY –
FOUNDATIONS 2024-2025 latest update//already GRADED A+
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
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
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
What layers of the OSI model would you troubleshoot if you want to see if an IP packet is being sent
to a device?
Layer 6 and Layer 7
Layer 5 and Layer 1
Layer 2 and Layer 3
Layer 5 and Layer 6
Layer 1 only - answer-Layer 2 and Layer 3
Put the OSI layers in the correct order starting with Layer 7 and going down.
1 Physical
2 Data Link
3 Network
,4 Transport
5 Session
6 Presentation
7 Application - answer-Application, Presentation, Session, Transport, Network, Data Link, Physical
If a network admin sees an IP address only connecting after production hours, what tool should the
admin use to start investigating who the IP address belongs to?
ifconfig
nmap
ssh
nslookup
Telnet - answer-nslookup
Feedback: This would provide information about the IP configuration such as IP address, this
information is known.
What layer of the OSI model does a switch operate?
Layer 2 (TCP Layer)
Layer 2 (Node Layer)
Layer 2 (Physical Layer)
Layer 2 (Data Transfer)
Layer 2 (Data-Link) - answer-Layer 2 (Data-Link)
Although a NIC card is found in a router, switch and computer, the basic operation is to simply
transmit a signal therefore; which layer(s) does a NIC card assigned on the OSI model?
Layer 2 and 3
Layer 1
Layer 6
Layer 1, 2 and 3 - answer-Layer 1
, The best example of a WAN would be ________________________________________
a. A small office with a Switch and Router.
b. A house equipped with a home router.
c. A company that has a network deployed in 9 countries on 3 continents
d. A local police department that has a private high speed connection to all precincts across the city
e. A University Campus that uses a VPN to connect the new research building. - answer-c. A
company that has a network deployed in 9 countries on 3 continents
A router is a Layer 3 device.
True
False - answer-True
What is the best example of a type 1 hypervisor?
a. A network admin uses a system management software to install a hypervisor on the users
computers in the accounting department so they can run legacy software.
b. A datacenter copies a database from a server on a schedule
c. A network admin purchases a server to run a web sever, database server and virtual firewall
d. A datacenter uses ESX to provide an application as a SaaS product for subscribers - answer-d. A
datacenter uses ESX to provide an application as a SaaS product for subscribers
Choose the best option that represents IaaS, PaaS and SaaS.
a. IaaS is the networks servers, storage and underlying virtual infrastructure sold as a service, PaaS is
the platform where the operating system level applications can be run, applications can be
developed, databases can be hosted without having to manage the underlying infrastructure, SaaS is
the end product or application where the client uses the application but is not responsible for the
development, maintenance or hosting of an application.
b. SaaS is the networks servers, storage and underlying virtual infrastructure sold as a service, IaaS is
the platform where the operating system level applications can be run, applications can be
developed, databases can be hosted without having to manage the underlying infrastructure, PaaS is
the end product or application where the client uses the application but is not responsible for the
development, maintena - answer-a. IaaS is the networks servers, storage and underlying virtual
infrastructure sold as a service, PaaS is the platform where the operating system level applications
FOUNDATIONS 2024-2025 latest update//already GRADED A+
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
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
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
What layers of the OSI model would you troubleshoot if you want to see if an IP packet is being sent
to a device?
Layer 6 and Layer 7
Layer 5 and Layer 1
Layer 2 and Layer 3
Layer 5 and Layer 6
Layer 1 only - answer-Layer 2 and Layer 3
Put the OSI layers in the correct order starting with Layer 7 and going down.
1 Physical
2 Data Link
3 Network
,4 Transport
5 Session
6 Presentation
7 Application - answer-Application, Presentation, Session, Transport, Network, Data Link, Physical
If a network admin sees an IP address only connecting after production hours, what tool should the
admin use to start investigating who the IP address belongs to?
ifconfig
nmap
ssh
nslookup
Telnet - answer-nslookup
Feedback: This would provide information about the IP configuration such as IP address, this
information is known.
What layer of the OSI model does a switch operate?
Layer 2 (TCP Layer)
Layer 2 (Node Layer)
Layer 2 (Physical Layer)
Layer 2 (Data Transfer)
Layer 2 (Data-Link) - answer-Layer 2 (Data-Link)
Although a NIC card is found in a router, switch and computer, the basic operation is to simply
transmit a signal therefore; which layer(s) does a NIC card assigned on the OSI model?
Layer 2 and 3
Layer 1
Layer 6
Layer 1, 2 and 3 - answer-Layer 1
, The best example of a WAN would be ________________________________________
a. A small office with a Switch and Router.
b. A house equipped with a home router.
c. A company that has a network deployed in 9 countries on 3 continents
d. A local police department that has a private high speed connection to all precincts across the city
e. A University Campus that uses a VPN to connect the new research building. - answer-c. A
company that has a network deployed in 9 countries on 3 continents
A router is a Layer 3 device.
True
False - answer-True
What is the best example of a type 1 hypervisor?
a. A network admin uses a system management software to install a hypervisor on the users
computers in the accounting department so they can run legacy software.
b. A datacenter copies a database from a server on a schedule
c. A network admin purchases a server to run a web sever, database server and virtual firewall
d. A datacenter uses ESX to provide an application as a SaaS product for subscribers - answer-d. A
datacenter uses ESX to provide an application as a SaaS product for subscribers
Choose the best option that represents IaaS, PaaS and SaaS.
a. IaaS is the networks servers, storage and underlying virtual infrastructure sold as a service, PaaS is
the platform where the operating system level applications can be run, applications can be
developed, databases can be hosted without having to manage the underlying infrastructure, SaaS is
the end product or application where the client uses the application but is not responsible for the
development, maintenance or hosting of an application.
b. SaaS is the networks servers, storage and underlying virtual infrastructure sold as a service, IaaS is
the platform where the operating system level applications can be run, applications can be
developed, databases can be hosted without having to manage the underlying infrastructure, PaaS is
the end product or application where the client uses the application but is not responsible for the
development, maintena - answer-a. IaaS is the networks servers, storage and underlying virtual
infrastructure sold as a service, PaaS is the platform where the operating system level applications
