Understanding Cisco Cybersecurity Fundamentals (SECFND, legacy) — Question 70

What would be the IPv6 address of a host using SLAAC with 2345::/64 as a network prefix and MAC address of 0300.1111.2222?

Answer options

• A. 2345::100:11FF:FE11:2222
• B. 2345:0:0:0:0300:11FF:FE11:2222
• C. 2345:0:0:0:FFFE:0300:1111:2222
• D. 2345::0300:11FF:FE11:2222

Correct answer: A

Explanation

The correct answer, A, is derived from the MAC address by generating the EUI-64 format, which involves inserting 'FFFE' in the middle of the MAC address. The other options do not correctly follow the EUI-64 format or misplace components of the MAC address, leading to invalid IPv6 addresses.