NETWORK SECURITY FIREWALL
CONFIGURATION PRACTICE TEST 2026
◉ 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.
CONFIGURATION PRACTICE TEST 2026
◉ 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.
