Which of the following descriptions of policy routing matching rules is incorrect?

Question

Options

• AWhen configuring multiple policy routing rules, the policy routing list is arranged in the order of
• BIf multiple values can be configured in a matching condition, and there is an "OR" relationship
• CEach policy route contains only one matching condition
• DThere is a default policy route default in the system by default. The default policy route is at the

• A
  9% (4)
• B
  14% (6)
• C
  75% (33)
• D
  2% (1)

Explanation

Option C is the incorrect statement because a single policy route can contain multiple matching conditions simultaneously (e.g., source IP address AND destination IP address AND protocol type AND port number), all of which must be satisfied together - an "AND" relationship within a rule.

• Option A is correct: when multiple policy routing rules exist, they are evaluated in a defined sequence (typically by priority or rule ID order), and the first match wins.
• Option B is correct: when a single matching condition allows multiple values (e.g., a list of source IP addresses), those values share an "OR" relationship - traffic matching any of those values satisfies that condition.
• Option D is correct: most routing systems include a built-in default policy route that sits at the lowest priority and acts as a catch-all for traffic that matches no other rule.

Memory tip: Think of a policy route like a filter with multiple layers - you can require a packet to match on source, destination, and protocol all at once. The word "only one" in option C is the red flag; real-world policy routing would be far too limited if each route could check just a single field.

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