Free Cisco CCNA 200-301 Actual Exam Questions - Question 3 Discussion

If NAT isn’t mentioned, D fits best since private IPs aren’t routable externally.

Probably D again—private IPs are designed for internal use only, so any scenario involving direct external communication like A, B, or C doesn’t really fit. D is the safest choice here.

Guessing D here too—private IPs can’t be used directly for external comms, so they’re ideal for hosts only talking inside the network. Options A, B, and C all involve some form of public or external interaction.

C/D? C sounds off because if the hosts stream data only to external resources, they’d need public IPs or NAT. D makes more sense since private IPs are specifically for internal use and won’t work directly on public interfaces or external communications. A is definitely out because firewalls’ public-facing sides need public IPs. Overall, D fits the intended purpose of private IPs best.

B tbh, private IPs aren’t meant for direct outside communication without NAT, so options B and C are tricky. D is the only one that fits naturally since it’s strictly internal communication.

Probably D. Private IPs don't work on public interfaces or for direct external communication, so using them just for internal-only host communication is the safest bet here.

Yeah, since private IPs aren't meant for internet traffic, using them on internal-only hosts (D) fits best. Options involving outside communication don't make sense without NAT. D

This feels straightforward since private IPs can't be routed on the public internet. So, D makes the most sense—hosts only communicating internally should use private IPs. Any option involving outside communication (A, B, or C) doesn't really fit because you'd need public IPs or NAT to handle that traffic properly.

D Private IPs aren’t routable on the internet, so only purely internal use fits.

D imo. Private IPs are specifically for internal networks, so using them on hosts that only communicate internally makes sense. Options involving any outside communication (A, B, C) don’t align because private IPs can’t route publicly without NAT, which the question doesn’t clarify as allowed.

B tbh, the key with private IPs is that they’re not routable on the public internet, so they’re best for internal use. That pretty much knocks out A and B since those involve public communication. Option C might seem tempting, but if the host is streaming data to external resources, it usually needs a public IP or NAT setup. D makes sense because private IPs keep traffic inside the network, which is exactly what hosts that only talk internally need.

Gotta go with D here. Private IPs are meant for internal-only communication, so hosts talking just inside the network fit perfectly.