Which three statements about IPv6 address fd14:920b:f83d:4079::/64 are true? (Choose three)

Question:
Which three statements about IPv6 address fd14:920b:f83d:4079::/64 are true? (Choose three)

• The subnet ID is 14920bf83d
• The subnet ID is 4079
• The global ID is 14920bf83d
• The address is a link-local address
• The global ID is 4079
• The address is a unique local address

Explanation: Let’s see an example of IPv6 prefix: 2001:0A3C:5437:ABCD::/64:

In this example, the RIR has been assigned a 12-bit prefix. The ISP has been assigned a 32-bit prefix and the site is assigned a 48-bit site ID. The next 16-bit is the subnet field and it can allow 2¹⁶, or 65536 subnets. This number is redundant for largest corporations on the world!

The 64-bit left (which is not shown the above example) is the Interface ID or host part and it is much more bigger: 64 bits or 2⁶⁴ hosts per subnet!

Therefore in this question 4079 is the subnet ID. The FD14 prefix belongs to FC00::/7 which is an IPv6 Unique Local Address (The address block fc00::/7 is divided into two /8 groups which are FC00::/8 & FD00::/8)

Exam with this question: CCNA v3.0 (200-125) Study Guide – Exam Dumps