Which two WAN architecture options help a business scalability and reliability for the network? (Choose two.)
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A. B. C. D. E.AC
The two WAN architecture options that help a business in terms of scalability and reliability for the network are dual-homed branches and dynamic routing.
Dual-homed branches: Dual-homed branches architecture provides a backup link to ensure the business continuity if one link fails. This means that if one link fails, the network traffic is automatically diverted to the secondary link, ensuring minimal disruption in business operations. This architecture provides high reliability, as it provides redundant paths and links to ensure continuous connectivity, thus ensuring scalability.
Dynamic routing: Dynamic routing is a routing mechanism where routing protocols are used to automatically find the best path to the destination network. This enables routers to select the most efficient path to the destination based on the current network topology. Dynamic routing enables the network to be more scalable, as it can adapt to changes in the network topology, such as the addition of new links, without requiring manual intervention.
Asynchronous routing, single-homed branches, and static routing are not the correct answers because:
Asynchronous routing: Asynchronous routing is a type of routing where packets are sent through the network on different paths, which may result in packets arriving out of order. This can result in significant delays in packet delivery and can adversely affect network performance and reliability.
Single-homed branches: Single-homed branches architecture connects branch sites to the network using a single link. This architecture provides no redundancy, and if the link fails, the branch site will lose connectivity to the network. This means that single-homed branches architecture does not provide high reliability.
Static routing: Static routing is a routing mechanism where network administrators manually configure routing paths to destination networks. This is not a scalable solution, as it requires manual intervention to change routing paths in response to changes in the network topology.