Flashcard 11 - 220-1102 Security Flashcard Set for the CompTIA A+ Core Series Exam


The correct answer is:



MAC addresses are burned into ROM chips on network interface cards. Each MAC address is unique, using a 48-bit number. There are over 280,000,000,000,000 available, worldwide. A user can modify his MAC address to appear to be a trusted host on a network to acquire access to the network. This is referred to as MAC spoofing.

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