Exam N10-008 topic 1 question 362 discussion

Actual exam question from CompTIA's N10-008

Question #: 362
Topic #: 1

Due to concerns around single points of failure, a company decided to add an additional WAN to the network. The company added a second MPLS vendor to the current MPLS WAN and deployed an additional WAN router at each site. Both MPLS providers use OSPF on the WAN network, and EIGRP is run internally. The first site to go live with the new WAN is successful, but when the second site is activated significant network issues occur. Which of the following is the MOST likely cause for the WAN instability?

A. A CDP neighbor has changed
B. Asymmetrical routing
C. A switching loop
D. An incorrect IP address

Show Suggested Answer

Suggested Answer: B 🗳️

by LeonardSnart at Nov. 29, 2022, 3:18 a.m.

Comments

Submit Cancel

JakeCharles

Highly Voted 11 months, 2 weeks ago

Asymmetrical routing is the most likely cause for the WAN instability. When two different routing protocols are used, like OSPF and EIGRP, it can cause asymmetrical routing, which results in traffic being routed differently in each direction. This can lead to instability in the WAN. A CDP neighbor change, a switching loop, or an incorrect IP address are not likely causes for WAN instability.

upvoted 9 times

...

PaytoPlay

Most Recent 7 months ago

Selected Answer: B

https://www.cisco.com/web/services/news/ts_newsletter/tech/chalktalk/archives/200903.html#:~:text=What%20is%20Asymmetric%20Routing%3F,it%20returns%20to%20the%20source.

upvoted 1 times

...

StellarSteve

7 months, 2 weeks ago

Selected Answer: B

B. Asymmetrical routing The most likely cause for the WAN instability in this scenario is asymmetrical routing. Asymmetrical routing occurs when traffic from one network is sent through one path to reach another network, while the return traffic is sent through a different path. This can result in dropped packets, slow performance, and other network issues.

upvoted 2 times

...

LeonardSnart

11 months, 2 weeks ago

Anthony Sequeira "Asymmetrical routing: Sometimes packets take very different paths back to you than they took toward the destination. This situation, called asymmetrical routing, is not always a bad thing, and sometimes you even engineer it to happen for some specific reason. Often, however, asymmetrical routing is not wanted and can cause issues."

upvoted 4 times

...

Exam N10-008 All Questions

View all questions & answers for the N10-008 exam