CompTIA Sec+ Chap. 4 Exam Questions
and Answers (Latest Update 2026)
Network Intrusion Detection System (NIDS) -
correct answer ✅Uses passive hardware sensors to monitor traffic
on a specific segment of the network.
Network Intrusion Prevention System (NIPS) -
correct answer ✅Monitors suspicious network and system traffic
and reacts in real time to block it.
Virtual Private Network (VPN) -
correct answer ✅A private network that is configured by tunneling
through a public network, such as the Internet.
VPN Concentrator -
correct answer ✅A single device that incorporates advanced
encryption and authentication methods in order to handle a large
number of VPN tunnels.
Demilitarized Zone (DMZ) -
correct answer ✅A small section of a private network that is
located between two firewalls and made available for public access.
, CompTIA Sec+ Chap. 4 Exam Questions
and Answers (Latest Update 2026)
Virtual Local Area Network (VLAN) -
correct answer ✅A point-to-point logical network that is created
by grouping selected hosts together, regardless of their physical
location.
Network Address Translation (NAT) -
correct answer ✅A simple form of Internet security that conceals
internal addressing schemes from the public Internet.
Open Systems Interconnection (OSI) Model -
correct answer ✅A way to abstract how a network is structured
based on how it communicates with other elements in the network,
similar to the TCP/IP model.
Physical Layer (1) -
correct answer ✅Defines connections between devices and
physical transmission media.
Data Link Layer (2) -
correct answer ✅provides a link between two directly connected
nodes, as well as detecting and fixing errors in the physical layer.
and Answers (Latest Update 2026)
Network Intrusion Detection System (NIDS) -
correct answer ✅Uses passive hardware sensors to monitor traffic
on a specific segment of the network.
Network Intrusion Prevention System (NIPS) -
correct answer ✅Monitors suspicious network and system traffic
and reacts in real time to block it.
Virtual Private Network (VPN) -
correct answer ✅A private network that is configured by tunneling
through a public network, such as the Internet.
VPN Concentrator -
correct answer ✅A single device that incorporates advanced
encryption and authentication methods in order to handle a large
number of VPN tunnels.
Demilitarized Zone (DMZ) -
correct answer ✅A small section of a private network that is
located between two firewalls and made available for public access.
, CompTIA Sec+ Chap. 4 Exam Questions
and Answers (Latest Update 2026)
Virtual Local Area Network (VLAN) -
correct answer ✅A point-to-point logical network that is created
by grouping selected hosts together, regardless of their physical
location.
Network Address Translation (NAT) -
correct answer ✅A simple form of Internet security that conceals
internal addressing schemes from the public Internet.
Open Systems Interconnection (OSI) Model -
correct answer ✅A way to abstract how a network is structured
based on how it communicates with other elements in the network,
similar to the TCP/IP model.
Physical Layer (1) -
correct answer ✅Defines connections between devices and
physical transmission media.
Data Link Layer (2) -
correct answer ✅provides a link between two directly connected
nodes, as well as detecting and fixing errors in the physical layer.
