A Cisco Catalyst Center (formerly DNA Center) REST API sends a PUT to the /dna/intent/api/v1/network-device endpoint. A response code of 504 is received. What does the code indicate?

Question

Options

• AThe response timed out based on a configured interval
• BThe user does not have authorization to access this endpoint.
• CThe username and password are not correct
• DThe web server is not available

• A
  88% (15)
• B
  6% (1)
• C
  6% (1)

Explanation

HTTP 504 Gateway Timeout Explained

A 504 Gateway Timeout means that a server acting as a gateway or proxy did not receive a timely response from an upstream server within a configured time interval - making Option A correct. In the context of Cisco Catalyst Center, the API request was accepted but the backend could not complete the response in time.

Why the distractors are wrong:

• Option B (no authorization) is incorrect - that would be a 403 Forbidden, indicating the user is authenticated but lacks permission.
• Option C (wrong credentials) is incorrect - invalid username/password returns a 401 Unauthorized response.
• Option D (web server unavailable) is incorrect - a completely unreachable server would return a 503 Service Unavailable, not a 504.

Memory Tip: Think of HTTP 5xx codes as server-side problems. Use this pattern: 401 = "Who are you?" (authentication), 403 = "You can't do that" (authorization), 503 = "I'm down" (unavailable), and 504 = "I waited too long" (timeout). The "4" in 504 can remind you of a clock's four positions - it's all about time.

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