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That diagnosis is supported by a different symptom: A monitoring rule declares the operation failed because it expects only HTTP200 after POST. Here the recorded observation is: an operator marks device discovery successful based only on HTTP200 despite no matching device record. The applicable cause is: hTTP success indicates the request completed, not that a specific desired record exists.

That diagnosis is supported by a different symptom: Repeated DELETE attempts occur because the client demands a JSON body on every success. Here the recorded observation is: an operator marks device discovery successful based only on HTTP200 despite no matching device record. The applicable cause is: hTTP success indicates the request completed, not that a specific desired record exists.

That diagnosis is supported by a different symptom: The client repeatedly reauthenticates but still cannot invoke a privileged API. Here the recorded observation is: an operator marks device discovery successful based only on HTTP200 despite no matching device record. The applicable cause is: hTTP success indicates the request completed, not that a specific desired record exists.

That control reduces a separate risk: The identity is authenticated but lacks required authorization, rather than merely needing a new token. For the described design, the recurring risk arises from: hTTP success indicates the request completed, not that a specific desired record exists. The specific required safeguard is: add schema and resource-presence assertions to REST inventory automation.

This test measures a different behavior: GET the returned resource to confirm its settings were stored. It does not establish the target outcome. For the documented fault, the direct acceptance test is: validate the response list contains a matching identifier from a known-inventory test.

The needed correction is to inspect both the success status and the actual payload fields before deciding the requested device exists.

Differentiate authentication failure (401) from an authenticated-but-forbidden permission decision (403) would not interpret HTTP201 Created and verify the returned location/id identifies the created resource.

Call the documented Catalyst Center REST API with scoped authentication and correct resource paths would not interpret HTTP201 Created and verify the returned location/id identifies the created resource.

Inspecting both the success status and the actual payload fields would not interpret HTTP201 Created and verify the returned location/id identifies the created resource.

This test measures a different behavior: Validate the response list contains a matching identifier from a known-inventory test. It does not establish the target outcome. For the documented fault, the direct acceptance test is: gET the returned resource to confirm its settings were stored.

This test measures a different behavior: Inspect authenticated device inventory response and reconcile a known device identifier. It does not establish the target outcome. For the documented fault, the direct acceptance test is: gET the returned resource to confirm its settings were stored.

This test measures a different behavior: Test the same endpoint with missing and underprivileged credentials and compare statuses. It does not establish the target outcome. For the documented fault, the direct acceptance test is: gET the returned resource to confirm its settings were stored.

That diagnosis is supported by a different symptom: The client repeatedly reauthenticates but still cannot invoke a privileged API. Here the recorded observation is: a monitoring rule declares the operation failed because it expects only HTTP200 after POST. The applicable cause is: hTTP201 is a valid successful resource-creation status, distinct from an error.

That diagnosis is supported by a different symptom: A script fails after a UI redesign because it scraped page text rather than a stable API contract. Here the recorded observation is: a monitoring rule declares the operation failed because it expects only HTTP200 after POST. The applicable cause is: hTTP201 is a valid successful resource-creation status, distinct from an error.

That diagnosis is supported by a different symptom: An operator marks device discovery successful based only on HTTP200 despite no matching device record. Here the recorded observation is: a monitoring rule declares the operation failed because it expects only HTTP200 after POST. The applicable cause is: hTTP201 is a valid successful resource-creation status, distinct from an error.

That control reduces a separate risk: HTTP success indicates the request completed, not that a specific desired record exists. For the described design, the recurring risk arises from: hTTP201 is a valid successful resource-creation status, distinct from an error. The specific required safeguard is: handle documented 2xx response codes appropriately per method and endpoint.

That control reduces a separate risk: The client mistakes a valid empty 204 response for an unsuccessful operation. For the described design, the recurring risk arises from: hTTP201 is a valid successful resource-creation status, distinct from an error. The specific required safeguard is: handle documented 2xx response codes appropriately per method and endpoint.

That control reduces a separate risk: The identity is authenticated but lacks required authorization, rather than merely needing a new token. For the described design, the recurring risk arises from: hTTP201 is a valid successful resource-creation status, distinct from an error. The specific required safeguard is: handle documented 2xx response codes appropriately per method and endpoint.

Differentiate authentication failure (401) from an authenticated-but-forbidden permission decision (403) would not address the need for treat HTTP204 No Content as a successful bodyless response when the API documents it.

Inspecting both the success status and the actual payload fields would not address the need for treat HTTP204 No Content as a successful bodyless response when the API documents it.

Limiting concurrent API requests and using response-aware retry/backoff rather than blind rapid retries would not address the need for treat HTTP204 No Content as a successful bodyless response when the API documents it.

This test measures a different behavior: Validate the response list contains a matching identifier from a known-inventory test. It does not establish the target outcome. For the documented fault, the direct acceptance test is: gET the resource after deletion and verify the tag is absent.

This test measures a different behavior: Test the same endpoint with missing and underprivileged credentials and compare statuses. It does not establish the target outcome. For the documented fault, the direct acceptance test is: gET the resource after deletion and verify the tag is absent.

This test measures a different behavior: Load-test one safe endpoint and inspect controller error/rate-limiting responses. It does not establish the target outcome. For the documented fault, the direct acceptance test is: gET the resource after deletion and verify the tag is absent.

That diagnosis is supported by a different symptom: An operator marks device discovery successful based only on HTTP200 despite no matching device record. Here the recorded observation is: repeated DELETE attempts occur because the client demands a JSON body on every success. The applicable cause is: the client mistakes a valid empty 204 response for an unsuccessful operation.

That diagnosis is supported by a different symptom: The controller answers HTTP429 to repeated bursts while the client keeps hammering it. Here the recorded observation is: repeated DELETE attempts occur because the client demands a JSON body on every success. The applicable cause is: the client mistakes a valid empty 204 response for an unsuccessful operation.

That diagnosis is supported by a different symptom: The client repeatedly reauthenticates but still cannot invoke a privileged API. Here the recorded observation is: repeated DELETE attempts occur because the client demands a JSON body on every success. The applicable cause is: the client mistakes a valid empty 204 response for an unsuccessful operation.

That control reduces a separate risk: The identity is authenticated but lacks required authorization, rather than merely needing a new token. For the described design, the recurring risk arises from: the client mistakes a valid empty 204 response for an unsuccessful operation. The specific required safeguard is: handle status-dependent response bodies rather than calling JSON decoding unconditionally.

That control reduces a separate risk: Client concurrency/rate handling exceeds permitted API processing limits. For the described design, the recurring risk arises from: the client mistakes a valid empty 204 response for an unsuccessful operation. The specific required safeguard is: handle status-dependent response bodies rather than calling JSON decoding unconditionally.

That control reduces a separate risk: HTTP success indicates the request completed, not that a specific desired record exists. For the described design, the recurring risk arises from: the client mistakes a valid empty 204 response for an unsuccessful operation. The specific required safeguard is: handle status-dependent response bodies rather than calling JSON decoding unconditionally.

Treat HTTP204 No Content as a successful bodyless response when the API documents it would not address the need for differentiate authentication failure (401) from an authenticated-but-forbidden permission decision (403).

Interpreting HTTP201 Created and verifying the returned location/id identifies the created resource would not address the need for differentiate authentication failure (401) from an authenticated-but-forbidden permission decision (403).

Implementing the supported API token lifecycle including expiry detection and authorized token refresh would not address the need for differentiate authentication failure (401) from an authenticated-but-forbidden permission decision (403).