ITPEC IP April 2018 Question 32
ITPEC IP April 2018 — Question 32 of 100
IPv6 resolves the shortage of globally reachable IP addresses by expanding address size from IPv4's 32 bits to 128 bits. The vastly larger address space permits an enormous number of unique addresses and reduces dependence on address-sharing techniques used to conserve IPv4 addresses.
Answer (b)
Why not others:
- duplicate addresses still cause addressing conflicts and communication problems
- optical-fiber access works independently of whether IPv4 or IPv6 is used
- changing the IP version does not by itself guarantee higher communication speed
Key rule: IPv6's primary benefit is its greatly enlarged address space, not automatic conflict prevention or physical-link acceleration.
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