12.1.3 Check Your Understanding – IPv4 Issues Answers

1. What is the most important motivating factor for moving to IPv6?

  • better performance with IPv6
  • IPv6 addresses that are easier to work with
  • better security with IPv6
  • depletion of IPv4 addresses

Explanation: The main driver or most important factor for IPv6 is the depletion of the IPv4 address space.

2. True or False: 4 out of 5 RIRs no longer have enough IPv4 addresses to allocate to customers on a regular basis.

  • True
  • False

Explanation: The correct answer is True. Four of the five RIRs, ARIN, APNIC, LACNIC, and RIPENCC have exhausted their IPv4 address pools. Only AfriNIC has remaining IPv4 address space to allocate to customers.

3. Which of the following techniques use native IPv6 connectivity?

  • dual stack
  • tunneling
  • translation
  • all of the above

Explanation: Only dual stack uses native IPv6 connectivity.

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