WGU D430 / C836 Fundamentals of Information Security-
High-Yield Exam Review Questions and A+ Level pass rate
solutions; Latest 2025/2026
What is network security? - correct answer Network security is the practice of securing
a computer network from unauthorized access, misuse, modification, or disruption.
What are the three primary goals of network security? - correct answer The three
primary goals of network security are confidentiality, integrity, and availability.
What is a firewall? - correct answer Answer: A firewall is a security device that monitors
and controls incoming and outgoing network traffic based on predetermined security
rules.
What is a VPN? - correct answer A VPN (Virtual Private Network) is a secure,
encrypted connection between two or more devices over a public network such as the
Internet.
What is a key in encryption? - correct answer key in encryption is a secret value used
to encrypt and decrypt data.
What is symmetric encryption? - correct answer Symmetric encryption is a type of
encryption where the same key is used for both encryption and decryption.
What is asymmetric encryption? - correct answer Asymmetric encryption is a type of
encryption where a different key is used for encryption and decryption.
What is a digital certificate? - correct answer A digital certificate is an electronic
document that verifies the identity of a person, organization, or device.
What is SSL/TLS? - correct answer SSL/TLS (Secure Sockets Layer/Transport Layer
Security) is a protocol for establishing secure communication over the Internet.
, What is a man-in-the-middle attack? - correct answer A man-in-the-middle attack is an
attack where an attacker intercepts communication between two parties and can
eavesdrop, modify, or impersonate the communication.
What is a denial-of-service (DoS) attack? - correct answer : A denial-of-service (DoS)
attack is an attack where an attacker floods a network or server with traffic to make it
unavailable to legitimate users.
What is a distributed denial-of-service (DDoS) attack? - correct answer A distributed
denial-of-service (DDoS) attack is a type of DoS attack where the attacker uses multiple
computers to flood a network or server with traffic.
What is a phishing attack? - correct answer A phishing attack is an attack where an
attacker sends an email or message that appears to be from a legitimate source, in
order to trick the recipient into revealing sensitive information
What is a DMZ? - correct answer A DMZ (demilitarized zone) is a separate network
segment that is isolated from the main network and is used to host publicly accessible
services, such as web servers.
What is a honeypot? - correct answer A honeypot is a security mechanism that
simulates a vulnerable system or network in order to attract and monitor
What is operating system security? - correct answer Operating system security is the
process of protecting the operating system from various types of threats, including
unauthorized access, viruses, malware, and other malicious activities.
What are the different types of operating system security measures? - correct answer
The different types of operating system security measures include access control,
authentication, authorization, encryption, and network security.
What is authentication? - correct answer Authentication is the process of verifying the
identity of a user or system.
High-Yield Exam Review Questions and A+ Level pass rate
solutions; Latest 2025/2026
What is network security? - correct answer Network security is the practice of securing
a computer network from unauthorized access, misuse, modification, or disruption.
What are the three primary goals of network security? - correct answer The three
primary goals of network security are confidentiality, integrity, and availability.
What is a firewall? - correct answer Answer: A firewall is a security device that monitors
and controls incoming and outgoing network traffic based on predetermined security
rules.
What is a VPN? - correct answer A VPN (Virtual Private Network) is a secure,
encrypted connection between two or more devices over a public network such as the
Internet.
What is a key in encryption? - correct answer key in encryption is a secret value used
to encrypt and decrypt data.
What is symmetric encryption? - correct answer Symmetric encryption is a type of
encryption where the same key is used for both encryption and decryption.
What is asymmetric encryption? - correct answer Asymmetric encryption is a type of
encryption where a different key is used for encryption and decryption.
What is a digital certificate? - correct answer A digital certificate is an electronic
document that verifies the identity of a person, organization, or device.
What is SSL/TLS? - correct answer SSL/TLS (Secure Sockets Layer/Transport Layer
Security) is a protocol for establishing secure communication over the Internet.
, What is a man-in-the-middle attack? - correct answer A man-in-the-middle attack is an
attack where an attacker intercepts communication between two parties and can
eavesdrop, modify, or impersonate the communication.
What is a denial-of-service (DoS) attack? - correct answer : A denial-of-service (DoS)
attack is an attack where an attacker floods a network or server with traffic to make it
unavailable to legitimate users.
What is a distributed denial-of-service (DDoS) attack? - correct answer A distributed
denial-of-service (DDoS) attack is a type of DoS attack where the attacker uses multiple
computers to flood a network or server with traffic.
What is a phishing attack? - correct answer A phishing attack is an attack where an
attacker sends an email or message that appears to be from a legitimate source, in
order to trick the recipient into revealing sensitive information
What is a DMZ? - correct answer A DMZ (demilitarized zone) is a separate network
segment that is isolated from the main network and is used to host publicly accessible
services, such as web servers.
What is a honeypot? - correct answer A honeypot is a security mechanism that
simulates a vulnerable system or network in order to attract and monitor
What is operating system security? - correct answer Operating system security is the
process of protecting the operating system from various types of threats, including
unauthorized access, viruses, malware, and other malicious activities.
What are the different types of operating system security measures? - correct answer
The different types of operating system security measures include access control,
authentication, authorization, encryption, and network security.
What is authentication? - correct answer Authentication is the process of verifying the
identity of a user or system.
