H13-821_V3.0 · Question #257
The process of microservice engine CSE registration discovery is described as follows: (1) When the microservice starts, it will register the instance information to CSE, including the basic…
The correct answer is A. True. Option A is correct because the description accurately reflects how CSE (Cloud Service Engine) handles microservice registration and discovery: instances register their metadata on startup, consuming services query and locally cache that instance information, and the cache is…
Question
The process of microservice engine CSE registration discovery is described as follows:
(1) When the microservice starts, it will register the instance information to CSE, including the basic information of the instance, such as application name, microservice name, instance address, etc. (2) When the microservice needs to call the business data of other microservices, it will query the instance information from the configuration center and cache the local information into the instance. The cache will be updated through mechanisms such as event notification and real-time query (3) Realize point-to-point calls between microservices through real-time cached address information. When there are multiple instances of microservices, different access strategies can be configured
Options
- ATrue
- BFalse
How the community answered
(46 responses)- A74% (34)
- B26% (12)
Explanation
Option A is correct because the description accurately reflects how CSE (Cloud Service Engine) handles microservice registration and discovery: instances register their metadata on startup, consuming services query and locally cache that instance information, and the cache is kept fresh through event notifications and periodic queries, enabling direct point-to-point communication with configurable load balancing strategies when multiple instances exist.
Option B is incorrect because the description is not false - it is a technically accurate summary of the standard CSE service registration and discovery lifecycle, covering registration, caching, cache invalidation, and inter-service calling patterns.
Memory tip: Think of CSE registration discovery in three phases - Register (instance announces itself), Resolve (consumer fetches and caches addresses), and Route (direct calls using cached data, with strategies for multiple instances). This "3 R" sequence maps directly to the three steps described in the question.
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