Which two WAN architecture options help a business scalability and reliability for the network? (Choose two.)
Which two WAN architecture options help a business scalability and reliability for the network? (Choose two.)
Dual-homed branches involve connecting each branch office to two different routers or network connections, which provides redundancy in case of a network failure, thereby increasing reliability and availability. Dynamic routing protocols enable routers to automatically adjust to changes in the network by exchanging information about network topology changes, allowing for improved scalability and reliability as the network can dynamically find the most efficient paths and adjust to topology changes automatically.
Should be C and E for me. Dynanic routing serves scalability as compared to static routing.
Agree here too e provides and defines scalability in this scenario.
A. Asynchronous routing is not a standard term in networking. It might be a confusion with asynchronous transfer mode (ATM) or other concepts, but it does not directly relate to WAN architecture options that improve scalability and reliability.
C and E for me too..who the hell come up with those questions
However, I guess in the real exam, A and C will count for correct..
C&E are correct C. Dual-homed branches: This architecture involves connecting each branch office to two different routers or switches, allowing for redundancy in case of a network failure. This design ensures that if one of the network connections fails, the other can take over without any disruption, providing high availability and improved network reliability. E. Dynamic routing: Dynamic routing is a type of routing protocol that allows routers to dynamically exchange information about network topology changes. This capability enables routers to adapt to network changes automatically and select the most efficient path for data transmission. Dynamic routing ensures network scalability, as new routers or network segments can be added without manual intervention, and it also improves network reliability by automatically rerouting traffic in the event of a network outage.
The two WAN architecture options that help a business scalability and reliability for the network are: C. Dual-homed branches: Dual-homing involves connecting each branch office to two or more different WAN links, such as two different service providers, in order to provide redundancy and increase reliability. This architecture option enables the business to maintain network connectivity even if one of the WAN links fails. In addition, it can also provide better performance and scalability by balancing traffic across the multiple links. E. Dynamic routing: Dynamic routing protocols enable routers to dynamically exchange information about the network topology and find the best path for data to travel. This allows for faster convergence in case of network changes and improves network scalability by automatically adjusting to changes in the network. Dynamic routing protocols also increase network reliability by providing redundancy and failover mechanisms.
A is not correct A. asynchronous routing isn't a standard term related to WAN architecture. You might be thinking of "asymmetric routing," where packets between two points might take different paths for the outbound and return traffic. While this can happen in complex networks, it's not specifically a method for improving scalability and reliability.
I am guessing this answer; but I do not think dynamic routing is not an architecture
Question: Which two WAN architecture options help a business scalability and reliability for the network? Keyword: Reliability Here is some reading to consider for Asynchronous routing Issues to Consider with Asymmetric Routing Asymmetric routing is not a problem by itself, but will cause problems when Network Address Translation (NAT) or firewalls are used in the routed path. For example, in firewalls, state information is built when the packets flow from a higher security domain to a lower security domain. The firewall will be an exit point from one security domain to the other. If the return path passes through another firewall, the packet will not be allowed to traverse the firewall from the lower to higher security domain because the firewall in the return path will not have any state information. The state information exists in the first firewall. Ref: https://www.cisco.com/web/services/news/ts_newsletter/tech/chalktalk/archives/200903.html
Based on scalability you need dynamic not static its too much work. Dual-homed is necessery for relaibilty. So C&E sounds more accurate for these rules.
According to Google
Asynchronous routing is not *reliable* according to the keyword of the questions here. The wording almost got me too. Comparing the definitions with each other can provide more clarity. @HMaw posted the def. above.
I prefer A and C
why is anyone chosing 'A" changing the answer from asychronous to asymmetric? Asynchronous Routing Protocols: Also known as distance vector routing protocols. Exchange routing information periodically at set intervals, regardless of whether there are changes in the network topology. Use simple metrics like hop count to determine the best path to a destination. Examples include RIPv1, RIPv2, IGRP, and EIGRP (which has characteristics of both distance vector and link-state protocols). Dynamic Routing Protocols: Also known as link-state routing protocols. Exchange routing information immediately or in response to changes in the network topology. Use more complex metrics (e.g., bandwidth, delay, cost) and detailed network topology information to calculate optimal paths. Typically have faster convergence times and better scalability than asynchronous protocols. Examples include OSPF, IS-IS (Intermediate System-to-Intermediate System), and BGP.
https://networklessons.com/cisco/ccna-routing-switching-icnd2-200-105/singledual-homed-and-multi-homed-designs
C&E are correct
I think A&C is correct. But "Asynchrnous routing" is the wrong term. I think they mean something like Asynchronous Transfer mode. So you can split your traffic via 2 lines, maybe Frame Relay and Internet.
C and E
I think A and C are corresc answers. In WAN architecture with dual-homed branches it is not problem and it can even increased network capacity and improved load balancing
Should be A and C