300-435 · Question #15
Implicitly, what are three characteristics of an API call? (Choose three.)
The correct answer is C. Parameters can be passed to the calls. E. They call a single function or service. API calls are characterized by their ability to accept parameters to specify actions or data, and each call typically targets a specific function or service provided by the API.
Question
Options
- AThey can be used only on network devices.
- BThey use only UDP for communications.
- CParameters can be passed to the calls.
- DThey must use SSL/TLS.
- EThey call a single function or service.
How the community answered
(58 responses)- A2% (1)
- B3% (2)
- C88% (51)
- D7% (4)
Why each option
API calls are characterized by their ability to accept parameters to specify actions or data, and each call typically targets a specific function or service provided by the API.
APIs are widely used across various domains, including web services, operating systems, and applications, not exclusively on network devices.
While some APIs might use UDP (e.g., for real-time streaming), the vast majority of modern APIs, especially RESTful ones, rely on TCP for reliable communication, often over HTTP/HTTPS.
API calls frequently allow parameters to be passed, enabling users to customize the request, filter data, or provide input necessary for the API to perform its intended operation.
While strongly recommended and widely adopted for security, not all APIs *must* use SSL/TLS; some internal or legacy APIs might operate over plain HTTP, although this is a security risk.
An API call is generally designed to invoke a specific function or interact with a particular service endpoint, performing a discrete task rather than a broad, undefined operation.
Concept tested: Fundamental characteristics of API calls
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