Exam: 200-301: Cisco Certified Network Associate (CCNA) 1 Likes
Which two WAN architecture options help a business scalability and (CCNA 200-301)
Which two WAN architecture options help a business scalability and reliability for the network?
(Choose two)
A. asychronous routing
B. single-homed branches
C. dual-homed branches
D. static routing
E. dynamic routing
Solution
Correct answer: C. dual-homed branches and E. dynamic routing.
Here's the explanation:
C. Dual-homed branches:
Dual-homed branches connect to the WAN through two separate links or providers. This provides redundancy and failover capabilities, improving the reliability of the network. If one link goes down, the other can take over, ensuring continued connectivity.
E. Dynamic routing:
Dynamic routing protocols, such as OSPF or EIGRP, automatically adapt to changes in the network topology. They can dynamically update routing tables and find the best paths, allowing the network to scale more easily as new sites or branches are added. This improves the overall scalability of the WAN.
The other options are not the best choices for improving both scalability and reliability:
A. Asynchronous routing is not a common WAN architecture option.
B. Single-homed branches have only a single connection to the WAN, reducing reliability.
D. Static routing requires manual configuration changes, limiting scalability.
So in summary, the two WAN architecture options that best help with scalability and reliability are dual-homed branches and dynamic routing.
Category: Network Fundamentals