Nokia 4A0-100 Question Answer
Which of the following is IANA responsible for?
The allocation of enterprise IP address space.
The allocation of residential IP address space.
The allocation of global IP address space.
The allocation of North American IP address space.
TheInternet Assigned Numbers Authority (IANA)is responsible for managing theglobal IP address pool, along with:
Allocating blocks ofIP addresses to Regional Internet Registries (RIRs)such as ARIN (North America), RIPE NCC (Europe), APNIC (Asia-Pacific), etc.
Managingautonomous system numbers (ASNs).
OverseeingDNS root zonesand protocol parameters.
IANAdoes not assign IPs directly to enterprises or individuals— those tasks are delegated toRIRs and ISPs.
Option A & B:Enterprises and residential allocations are handled by ISPs or RIRs.
Option D:North American IPs are managed byARIN, not IANA.
Option C is correct– IANA manages theglobal IP address allocationhierarchy.
TESTED 02 Aug 2025
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