The sequence diagram given in Figure 1 for the Weather Information System takes place when an external system requests the summarized data from the weather station.
The increasing order of lifeline for the objects in the system are:
(A)
Sat comms → Weather station → Comms link → Weather data
(B)
Sat comms → Comms link → Weather station → Weather data
(C)
Weather data → Comms link → Weather station → Sat Comms
(D)
Weather data → Weather station → Comms link → Sat Comms
Answer: (D)
Explanation:
Marks to all.
In final answer key UGC cancelled this question and marks awarded to all appeared candidate.
Quiz of this Question
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