Network segmentation involves dividing a network into smaller segments to enhance security and manageability. VLANs are a common method for logical segmentation. Firewalls and encryption provide protection but are not segmentation techniques.
Firewalls enforce security policies by controlling access to and from a network based on predetermined rules. They help prevent unauthorized access and protect against threats.
A DoS attack aims to overwhelm a system or network with excessive traffic, rendering it unavailable to legitimate users. Phishing, MITM, and SQL Injection are different types of cyberattacks.
SSH (Secure Shell) provides encrypted remote access to network devices, ensuring secure communication. Telnet is unsecured, while FTP and HTTP serve different purposes (file transfer and web access).
A VPN (Virtual Private Network) creates a secure tunnel for transmitting data over public or untrusted networks, protecting user privacy and sensitive information from potential threats.