CMO Data Collection & Monitoring 2

Question 1

Which sampling strategy collects data at irregular intervals based on triggered events rather than fixed time schedules?

Accepted Answer

Event-driven sampling

Answer

Event-driven sampling captures data when specific conditions or triggers occur, making it efficient for monitoring infrequent but important events.

Question 2

A mobile data collection app loses network connectivity during a field survey. What is the recommended handling approach?

Accepted Answer

Store data locally and sync when connectivity is restored

Answer

Offline-first design stores data locally on-device and queues it for synchronization once network connectivity is re-established.

Question 3

In Mobilyze monitoring dashboards, what does a 'stale data' alert typically indicate?

Accepted Answer

No new data has been received within the expected reporting window

Answer

A stale data alert fires when a data source has not reported within its configured freshness threshold, signaling a potential collection interruption.

Question 4

Which data validation technique flags a record when a numeric sensor reading exceeds three standard deviations from the historical mean?

Accepted Answer

Statistical outlier detection

Answer

Statistical outlier detection uses measures like standard deviation to identify values that are anomalous compared to established historical patterns.

Question 5

A field operator notices that GPS coordinates recorded during data collection show a consistent 50-meter offset from known locations. This is most likely caused by:

Accepted Answer

GPS datum mismatch between device and base map

Answer

A systematic spatial offset usually results from a coordinate reference system (datum) mismatch between the recording device and the reference layer.

(CMO) Certified Mobilyze Operator Practice Test

(CMO) Certified Mobilyze Operator Practice Test

CMO Data Collection & Monitoring 2