In how many of the following rows is the given information correctly matched?
|
List Type |
Description |
Function |
|
1. White List |
Authorised IMEI numbers |
Permitted to access cellular networks |
|
2. Grey List |
Authorised IMEI numbers under observation |
Tracked for suspicious activity |
|
3. Black List |
Unauthorised IMEI numbers |
Blocked from accessing any network |
|
4. Watch List |
Devices with cloned or tampered IMEI |
Blocked immediately and permanently |
1
Only three
2
Only two
3
All four
4
Only one