Router, Forwards data between networks, Switch, Connects devices within a LAN, Firewall, Filters allowed and blocked traffic, IP address, Identifies a device on network, MAC address, Hardware identifier for network interface, DNS, Translates names into IP addresses, VPN, Encrypts connection over public internet, Malware, Software designed to harm systems, Phishing, Tricks users into revealing information, Encryption, Converts data into unreadable form.

Network and Security Basics

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