Q1. With reference to Cell Broadcasting Service (CBS), consider the following statements:
- Cell broadcasting can disseminate a location-targeted emergency message to a large number of mobile devices without requiring the sender to possess the individual phone numbers of recipients.
- Unlike SMS-based alerts, cell broadcasting is inherently dependent on maintaining a separate communication session with each recipient device.
- A major technical challenge in deploying CBS at the national level is ensuring interoperability across different telecom operators, radio-access equipment and generations of mobile networks.
- Cell broadcasting is particularly suited to disaster warnings because messages can be targeted to devices within a specified geographic area.
Which of the statements given above are correct?
(a) 1 and 3 only
(b) 1, 3 and 4 only
(c) 2 and 4 only
(d) 1, 2, 3 and 4
Answer: (b)
Explanation:
- Statement 1 is correct: CBS can reach devices in a geographical area without requiring individual recipient phone numbers.
- Statement 2 is incorrect: This describes the one-to-one nature of conventional messaging more closely. CBS is designed for simultaneous mass dissemination.
- Statement 3 is correct: Interoperability across operators, network equipment and different generations of mobile technology is a significant implementation challenge.
- Statement 4 is correct: Geographic targeting makes CBS particularly useful for emergency and disaster warnings.
