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Which of the following statements is false about RADIUS and HWTACACS? 

Before configuring DDoS attack defense, you must configure different thresholds for defense against different types of attacks. Each threshold can be considered an upper limit for normal network traffic. When the rate of traffic exceeds the pre-configured threshold, the firewall considers it to be attack traffic and takes a corresponding action to defend against it.

*In the data filtering profile on the firewall, keyword group "Keyword" is invoked in the upload direction of HTTP applications, the action is block, and the keyword group is invoked in the security policy. Given this, if the regular expression "b.d" is configured in the keyword group "Keyword,” which of the following texts can be posted by internal employees on the forum?

Which of the following statements is false about Eth-Trunk?(Select All that Apply)

HWTACACS is a centralized information exchange protocol based on the client/server structure. It uses UDP for transmission and performs authentication, authorization, and accounting for users accessing the Internet through Point-to-Point Protocol (PPP) or Virtual Private Dial-up Network (VPDN) and administrative users logging in to devices.