When comparing IPv4 to IPv6, which of the following is an advantage of the IPv6 network addressing scheme?

Question

Options

• ALarger address space
• BShorter address space
• CHigh dependence on network routers
• DFast and unencrypted network transmissions

• A
  85% (11)
• C
  8% (1)
• D
  8% (1)

Explanation

IPv6 was designed specifically to solve IPv4's address exhaustion problem, expanding from 32-bit addresses (~4.3 billion) to 128-bit addresses (~340 undecillion), giving it a vastly larger address space - making A correct. Option B is wrong because a shorter address space would be a downside, not an advantage. Option C is wrong because IPv6 actually reduces router dependency by eliminating NAT (Network Address Translation), which IPv4 relies on heavily due to address scarcity. Option D is wrong because IPv6 supports built-in IPsec for encryption, meaning transmissions are more secure, not unencrypted - and "fast and unencrypted" describes a tradeoff, not an advantage.

Memory tip: Think "IPv6 = six times bigger" - the jump from 32-bit to 128-bit is an astronomically larger space, and that's the entire reason IPv6 was created.

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