IPv6 Benefits | CCIE Security Exam Answer | Cisco Exam 400-251

IPv6 Benefit

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Which statement describes an IPv6 benefit?



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A. B. C. D. E.


The correct answer is A. Broadcast is not available.

IPv6 provides several benefits over its predecessor, IPv4. One of these benefits is that broadcast is not available in IPv6. Instead, IPv6 uses a multicast addressing mechanism that allows packets to be sent to multiple destinations simultaneously. This improves network efficiency and reduces unnecessary traffic.

Option B, "Routing tables are more complicated," is incorrect. IPv6 routing tables are actually simpler than IPv4 routing tables because IPv6 uses a hierarchical addressing scheme that allows for more efficient aggregation of routes.

Option C, "The address pool is limited," is also incorrect. IPv6 provides a much larger address space than IPv4, with 128-bit addresses compared to 32-bit addresses in IPv4. This larger address space provides enough unique addresses for every device on the planet and beyond.

Option D, "Data encryption is not built into the packet frame," is also incorrect. While IPv6 does not provide data encryption by default, it does support encryption through the use of IPSec (Internet Protocol Security) protocols.

Option E, "Increased NAT is required," is also incorrect. NAT (Network Address Translation) is used in IPv4 to allow multiple devices to share a single public IP address. With the larger address space provided by IPv6, NAT is no longer necessary for address sharing.