Free Cisco 400-007 Actual Exam Questions - Question 7 Discussion
ASN Which multicast address range should be used?
Yeah, B fits best since GLOP's about 233.x.x.x for ASN uniqueness. B
Option B makes the most sense since GLOP addressing is specifically designed to map 16-bit ASNs into the 233.0.0.0/16 multicast block, ensuring uniqueness. The other options fall outside this designated range and don’t align with how GLOP IPs are structured. Even if 32-bit ASN support isn’t clear, B is the only choice that matches the official GLOP allocation criteria.
D imo, the GLOP range is definitely tied to 233.0.0.0/16 for mapping ASNs, so options A, C, and D don't fit since they’re in totally different multicast ranges. The key is uniqueness within the ASN space, and that’s why 233.x.x.x (Option B) is used. The others either don’t relate to ASNs or aren’t actual multicast blocks assigned for GLOP. So even without worrying about ASN size details, B stands out as the only legit GLOP block here.
B/D? The GLOP range is definitely in the 233.x.x.x block, so B fits. D is too low and not part of the GLOP scheme, so it’s probably safe to rule out D.
B. The key is that GLOP addressing uses the 233.0.0.0/16 range, which is reserved for this exact purpose—mapping ASNs to multicast addresses. The other options are either outside that range or don’t align with the official GLOP IP allocation. So, B fits the unique ASN mapping requirement perfectly.
It’s A because GLOP uses the 233.0.0.0/16 range—that's the only one close to the assigned GLOP block for unique multicast addresses within ASNs. Other options don’t fit the standard GLOP addressing scheme.
Option B makes sense since GLOP is tied to the 233.0.0.0/16 range for uniqueness.
The GLOP range is definitely multicast-specific and based on a 16-bit ASN embedded in the 233.0.0.0/16 block, which matches option B despite the typo. None of the others align with that concept.
B imo, only that range is ASN-based for GLOP addresses.
B Despite the typos, 233.0.0.0 to 233.255.255.255 is the correct GLOP range since it’s tied to ASNs. The other options don’t match the known multicast GLOP allocation.
B makes the most sense given the ASN-based allocation despite the typos.
B but the typo’s annoying; 233.x.x.x fits the GLOP scheme best.
B, it’s the only one referencing the 233.x.x.x block tied to ASNs.
It’s definitely B since GLOP addressing uses the 233.0.0.0/16 block to create unique multicast addresses based on the ASN. The other options either have wrong ranges or don’t match the known GLOP IP block. The typos in B are annoying but the intended range fits perfectly with the GLOP standard.
Isn’t the range supposed to be within 233.0.0.0 to 233.255.255.255 for GLOP addressing? Option B looks like it but the typo is confusing. Anyone else?