IBM
C2180-376 · Question #94
C2180-376 Question #94: Real Exam Question with Answer & Explanation
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Question
A bus company is implementing a solution which will display in real-time the arrival information of the next bus on the bus stop sign. Each bus is sending information about its position at regular intervals. What is the best way of implementing this solution given that there is limited bandwidth for communication? The bus stop sign:
Options
- Asubscribes to messages published by the bus
- Bqueries a central system for bus position using SOAP over HTTP
- Creplicates its own database every few minutes with a database stored on a central system
- Dsends a message with a request every few minutes to a central system in order to query
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