The network designer needs to use GLOP IP addresses in order to make them unique within their ASN Which multicast address range should be used?

• A.H233.0.0 0 to 233.255.255 255
• B.232.0.0.0 to 232 255.255.255
• C.239000 to 239255255.255
• D.224000 to 2240.0 255

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Refer to the exhibit.

Which impact of using three or more ABRs between the backbone area and area 1 is true?

• A.In a large-scale network LSA replication by all ABRs can cause serious scalability issues
• B.Multiple ABRs reduce the CPU processing on each A6R due to splitting prefix advertisement
• C.Prefixes from the non-backbone area are advertised by one ABR to the backbone
• D.In a large-scale network multiple ABRs can create microloops.

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Refer to the exhibit.

This network is running OSPF as the routing protocol. The internal networks are being advertised in OSPF London and Rome are using the direct link to reach each other although the transfer rates are better via Barcelona Which OSPF design change allows OSPF to calculate the proper costs?

• A.Change the interface bandwidth on all the links.
• B.Implement OSPF summarisation to fix the issue
• C.Filter the routes on the link between London and Rome
• D.Change the OSPF reference bandwidth to accommodate faster links.

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Company XYZ runs OSPF in their network. A design engineer decides to implement hot-potato routing architecture. How can this implementation be achieved?

• A.Redistribute the external prefixes onto OSPF and ensure that the total metric calculation includes external internal values.
• B.Enable OSPF load-balancing over unequal cost path.
• C.Enable iBGP and apply prepend to ensure all prefixes will have the same length of the AS path attribute value.
• D.Redistribute the external prefixes onto OSPF and ensure the total metric calculation includes only the ext value and the value is the same in all ASBRs.

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Which action must be taken before new VoIP systems are implemented on a network to ensure that the network is ready to handle the traffic?

• A.Evaluate bandwidth utilization and connection quality
• B.Make recommendations to limit the size of the half-open session table on routers
• C.Enable special requirements such as direct DID lines on pickup
• D.Check if anomaly detection is enabled for SIP and H.323 on Layer 3 devices

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