Adopting IPv6 over IPv4

Moving from IPv4 to IPv6

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The network administrator has been asked to give reasons for moving from IPv4 to IPv6. What are two valid reasons for adopting IPv6 over IPv4? (Choose two.)



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A. B. C. D. E. F.


IPv6 does not use broadcasts, and autoconfiguration is a feature of IPV6 that allows for hosts to automatically obtain an IPv6 address.

IPv6 is the latest version of the Internet Protocol (IP) and was developed to address the limitations of IPv4. IPv6 provides a larger address space, improved security, and better support for mobile devices and the Internet of Things (IoT) devices. Here are two valid reasons for adopting IPv6 over IPv4:

  1. Larger Address Space: One of the biggest limitations of IPv4 is the limited number of unique IP addresses available. IPv4 addresses are 32 bits long, which means there are only about 4 billion unique addresses. With the proliferation of internet-connected devices, the demand for IP addresses has far outstripped the supply. IPv6 addresses are 128 bits long, which provides a much larger address space (about 3.4 × 10^38 addresses). This means that IPv6 can provide unique addresses to every device on the internet, as well as to individual network interfaces on a device.

  2. Autoconfiguration: IPv6 provides support for stateless address autoconfiguration (SLAAC), which simplifies the process of assigning IP addresses to devices. With SLAAC, devices can automatically configure their IPv6 addresses based on information provided by the network. This eliminates the need for DHCP servers, which simplifies network configuration and reduces administrative overhead.

In contrast to the two valid reasons above, the other options are not relevant or incorrect:

  • A: IPv6 still has a form of broadcast, but it's called multicast.
  • B and C: IPv6 allows changes to both the source and destination address in the header, but this is not a valid reason to move from IPv4 to IPv6.
  • D: Telnet access is a protocol for remotely accessing network devices and does require a password.
  • F: Network Address Translation (NAT) is a technique used in IPv4 to allow multiple devices to share a single public IP address. NAT is still possible in IPv6, but it's not a driving factor for IPv6 adoption.