3. Identify the Constraints When Consuming APIs 200-901 Practice Questions (Page 9)

Questions 41–44

1. 41foundation · easy

   How can high network latency affect API consumption?

   • AIt reduces the maximum size of the request payload.
   • BIt changes the authentication requirements of the API.
   • CIt automatically retries failed requests.
   • DIt increases the time it takes for a request to reach the API and for the response to return.
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2. 42expert · hard

   A company's automation platform uses a Cisco Webex API v1 endpoint that returns a 'roomId' field as a string. The vendor announces v2 will change 'roomId' to an integer and will deprecate v1 in 6 months. The team has many scripts that rely on the string type. What is the best strategy to manage this transition?

   • AUse a middleware to convert v2 responses to v1 format
   • BKeep using v1 until it is fully deprecated, then migrate
   • CImmediately migrate all scripts to v2 and update the data type handling
   • DPlan a phased migration to v2, updating scripts to handle the integer type, and test in parallel during the deprecation period
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4. 43application · medium

   An automation engineer writes a Python script to parse JSON responses from a Cisco SD-WAN vManage API. The script fails when the API returns a field with a null value that the script expects to be a string. What is the best practice to handle this constraint?

   • AConvert the entire response to XML to avoid null issues
   • BRequest a different API endpoint that returns the same data without nulls
   • CAssume the API will always return non-null values for that field
   • DUse a schema validation library to validate and handle null or missing fields
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5. 44application · medium

   A developer is writing a script to access a Cisco Webex API that requires OAuth2. The script currently sends the client credentials in the URL. What is the correct way to authenticate?

   • AObtain an access token via the OAuth2 token endpoint and include it in the Authorization header
   • BUse the client secret as the API key in a custom header
   • CUse basic authentication with the client ID as username and secret as password
   • DSend the client ID and secret in the query string of every request
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