Network Security Fundamentals Quiz

Network Security Fundamentals

• Hash functions are used for digital signature and to reduce the size of the signature.
• Hash functions provide pre-image resistance, second pre-image resistance, and collision resistance.
• Intrusion detection systems (IDS) are used to monitor network traffic and detect potential attacks.
• IDS can be network-based or host-based and use signature-based, anomaly-based, behavior-based, or heuristics-based detection methods.
• Virtual Private Network (VPN) is used to securely transfer data across public networks, ensuring authenticity, integrity, access control, and confidentiality.
• VPN can be LAN-to-LAN internetworking or remote access.
• IPSec is a framework used to protect IP traffic with confidentiality, integrity, and authentication.
• IPSec has two modes: transport mode and tunnel mode.
• Bastion host, screened subnet, multi-homed firewall, software firewall, and hardware firewall are different types of firewalls used for network security.
• Firewall technologies include packet filtering, circuit level gateway, application level gateway, and stateful multilayer inspection.
• DNS is vulnerable to spoofing and amplification attacks, which can lead to DNS cache poisoning and re-binding attacks.
• DNS cache poisoning and re-binding attacks can compromise network security and allow attackers to access internal networks.

Network Security Fundamentals

• Hash functions are used for digital signature and to reduce the size of the signature.
• Hash functions provide pre-image resistance, second pre-image resistance, and collision resistance.
• Intrusion detection systems (IDS) are used to monitor network traffic and detect potential attacks.
• IDS can be network-based or host-based and use signature-based, anomaly-based, behavior-based, or heuristics-based detection methods.
• Virtual Private Network (VPN) is used to securely transfer data across public networks, ensuring authenticity, integrity, access control, and confidentiality.
• VPN can be LAN-to-LAN internetworking or remote access.
• IPSec is a framework used to protect IP traffic with confidentiality, integrity, and authentication.
• IPSec has two modes: transport mode and tunnel mode.
• Bastion host, screened subnet, multi-homed firewall, software firewall, and hardware firewall are different types of firewalls used for network security.
• Firewall technologies include packet filtering, circuit level gateway, application level gateway, and stateful multilayer inspection.
• DNS is vulnerable to spoofing and amplification attacks, which can lead to DNS cache poisoning and re-binding attacks.
• DNS cache poisoning and re-binding attacks can compromise network security and allow attackers to access internal networks.