Exam 300-820 topic 1 question 180 discussion

Actual exam question from Cisco's 300-820

Question #: 180
Topic #: 1

Refer to the exhibit. After hardening the Cisco Expressway, an engineer noticed this error in the logs HTTP error 429 "Too Many Requests,” and users report that authentication is not possible on more than two devices. What must the engineer increase to correct the issue?

A. maximum authorizations per period
B. credentials refresh interval
C. rate control period
D. credentials cleanup interval

Show Suggested Answer

Suggested Answer: A 🗳️

by xilosapo at April 4, 2025, 4:40 p.m.

Comments

Submit Cancel

collaboratorgator

1 month, 2 weeks ago

Selected Answer: A

The Expressway can limit the number of times that any user's credentials can be used, in a given configurable period, to authorize the user for collaboration services. This feature is designed to thwart inadvertent or real denial of service attacks, which can originate from multiple client devices authorizing the same user, or from clients that reauthorize more often than necessary. Each time a client supplies credentials to authorize the user, the Expressway checks whether this attempt would exceed the Maximum authorizations per period within the previous number of seconds specified by the Rate control period. If the attempt would exceed the chosen maximum, then the Expressway rejects the attempt and issues the HTTP error 429 “Too Many Requests”. https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/expressway/config_guide/X12-7/exwy_b_mra-deployment/exwy_m_mra-maintenance.pdf

upvoted 1 times

...