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300-365 · Question #144

You must use Cisco AVC on a WLC to prevent users from accessing a social media website. Which action do you configure in a rule?

The correct answer is A. drop. Cisco AVC on the WLC uses the 'drop' action to completely block application traffic, making it the correct choice for preventing access to a social media website.

Wireless Deployment

Question

You must use Cisco AVC on a WLC to prevent users from accessing a social media website. Which action do you configure in a rule?

Options

  • Adrop
  • Brate-limit
  • Cdeny
  • Dmark

How the community answered

(32 responses)
  • A
    91% (29)
  • C
    6% (2)
  • D
    3% (1)

Why each option

Cisco AVC on the WLC uses the 'drop' action to completely block application traffic, making it the correct choice for preventing access to a social media website.

AdropCorrect

The 'drop' action in a Cisco AVC policy rule instructs the WLC to silently discard all packets classified as the matched application, completely blocking user access to the social media site without sending any response back to the client - this is the only AVC action that enforces a hard block on application traffic.

Brate-limit

The 'rate-limit' action throttles bandwidth for the matched application rather than blocking it, meaning users would still reach the social media site at a reduced speed.

Cdeny

'Deny' is not a valid configurable action in Cisco AVC policy rules on the WLC - the correct term for blocking application traffic in AVC is 'drop', not 'deny'.

Dmark

The 'mark' action re-marks the DSCP or QoS tag on matched application traffic for prioritization or deprioritization purposes and does not prevent access to the application.

Concept tested: Cisco AVC policy rule action for blocking applications on WLC

Source: https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-10/config-guide/b_cg810_CONSOLIDATED/application_visibility_control.html

Topics

#AVC#application policy#traffic control#WLC

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