A WebSocket client processes a high volume of events. The application's event handler is slow, and the client is falling behind, causing the message queue to grow. What is the most effective way to prevent data loss and maintain real-time processing?

Implement a separate consumer queue and process events asynchronously

Increase the WebSocket receive buffer size

Reduce the number of subscribed topics

Pause the WebSocket connection periodically to catch up

A team wants to trigger an automated workflow whenever a new AP is provisioned in Mist. They need the trigger to be immediate. Which Mist API approach should they use?

Poll the REST API every hour for changes

Use the Mist CLI to manually check for new APs

Subscribe to a WebSocket topic for device events and watch for 'provisioned' messages

Schedule a nightly REST API call to check for new APs

A developer is debugging a WebSocket client that is not correctly handling 'location_update' events. The client receives the messages but fails to extract the correct coordinates. Upon inspection, the payload has a nested structure. What is the most likely cause of the issue?

The parser is not navigating the nested JSON structure correctly

The WebSocket connection is not authenticated

The client is subscribed to the wrong topic

The server is sending data in a binary format

A WebSocket client receives a message, but the application crashes before fully processing it. The team wants to ensure no events are missed. What is the best practice for handling this scenario?

Acknowledge the message immediately upon receipt

Ignore the message and rely on the next one

Store the message in memory and process it later

Acknowledge the message only after it has been fully processed and persisted

Juniper NetworksCertified Associate, Mist AI

Domain 7Objective 2

Websocket APIs JN0-253 Practice Questions (Page 4)

Part of the Juniper Mist Cloud Operations domain, which makes up ~18% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~6–11 in this domain), expect 1–2 from this objective — we provide 28 practice questions to prepare you well beyond it. (estimate)

28questions here

6free pages

6concepts

Questions 16–20

16expert · hard
A WebSocket client processes a high volume of events. The application's event handler is slow, and the client is falling behind, causing the message queue to grow. What is the most effective way to prevent data loss and maintain real-time processing?
Select an answer first
17application · medium
A team wants to trigger an automated workflow whenever a new AP is provisioned in Mist. They need the trigger to be immediate. Which Mist API approach should they use?
Select an answer first
18foundation · easy
Which of the following is an example of a Mist Websocket data stream a client can subscribe to?
Select an answer first
19expert · hard
A developer is debugging a WebSocket client that is not correctly handling 'location_update' events. The client receives the messages but fails to extract the correct coordinates. Upon inspection, the payload has a nested structure. What is the most likely cause of the issue?
Select an answer first
20expert · hard
A WebSocket client receives a message, but the application crashes before fully processing it. The team wants to ensure no events are missed. What is the best practice for handling this scenario?
Select an answer first

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