Previous Year Question
The full form of SIM is
A.
Subscriber’s Identity Module
B.
Subscriber’s Identity Machine
C.
Self Identity Machine
D.
Self Identity Module
Correct Answer: A
Detailed Solution
A SIM is used to securely store information related to the identification and authentication of a subscriber/user on a mobile telecommunication network.
It can securely store a unique telecommunication identifier related to the subscriber and the keys required for authentication.
A SIM is not limited to a traditional removable card; modern telecommunications also use other form factors such as e-SIM and iSIM.