In a DNS rate-limiting policy, what does the selectorName field specify?

In a DNS rate-limiting policy, what does the selectorName field specify?

• A. The DNS server to use
• B. The location
• C. The stream selector to apply
• D. The time window

Answer: (C)

In DNS rate limiting, traffic is grouped into streams using a stream selector, and the policy applies to the traffic that falls into that stream. The selectorName field specifies which predefined stream selector to use for this rate-limiting policy. In other words, it tells the system exactly which stream of DNS requests should be counted and limited according to the policy’s limits and time window. The other pieces—where the DNS server is chosen or where the policy is applied, and the time window itself—are configured separately. The selectorName is about selecting the traffic stream to which the rate limit should apply; once the stream is selected, the limit and time window govern how many requests are allowed within each window for that stream.

In DNS rate limiting, traffic is grouped into streams using a stream selector, and the policy applies to the traffic that falls into that stream. The selectorName field specifies which predefined stream selector to use for this rate-limiting policy. In other words, it tells the system exactly which stream of DNS requests should be counted and limited according to the policy’s limits and time window.

The other pieces—where the DNS server is chosen or where the policy is applied, and the time window itself—are configured separately. The selectorName is about selecting the traffic stream to which the rate limit should apply; once the stream is selected, the limit and time window govern how many requests are allowed within each window for that stream.