350-501 Security and Services Practice Question
An SP is implementing DDoS mitigation using BGP FlowSpec. Which three types of actions can be specified in a FlowSpec rule? (Choose three.)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Drop (discard)
BGP FlowSpec can specify actions like traffic-rate (rate-limiting), redirect (to a next-hop or VRF), and drop (discard). Marking DSCP is not typical; sample is used for traffic analysis but not a standard action in FlowSpec.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Drop (discard)
Why this is correct
Drop is a standard action to discard traffic.
- ✗
Sample (copy to analyzer)
Why it's wrong here
Sampling is not a defined action in FlowSpec.
- ✗
Mark DSCP
Why it's wrong here
DSCP marking is not a standard FlowSpec action.
- ✓
Traffic-rate (rate-limit)
Why this is correct
Rate-limiting is a common FlowSpec action.
- ✓
Redirect to a next-hop
Why this is correct
Redirect is used to send traffic to a scrubbing center.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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