A mobile device is registered in the network. Which cellular network element stores the mobile device's registration information?0.5 MarksMSCVLRHLR APBTS

The correct answer is HLR (Home Location Register).

Explanation:

The Home Location Register (HLR) is a crucial component in mobile cellular networks that is responsible for storing subscriber information, including the user's service plan, current location, and mobile device registration details. When a mobile device connects to the network, it sends a registration request that is logged in the HLR, which serves multiple purposes:

1. Subscriber Data Storage: It contains detailed information about each subscriber, such as their mobile number, the services they are subscribed to, and any special features relevant to their account.

2. Location Tracking: The HLR also tracks the current location of the mobile device by identifying which Mobile Switching Center (MSC) is serving the subscriber at any given time. This is essential for routing calls and messages accurately.

3. Inter-Network Communication: The HLR facilitates communication between different network elements, ensuring that services can be seamlessly provided as the user moves between different geographical areas or networks.

In contrast:

• MSC (Mobile Switching Center) is responsible for managing call routing and handovers but does not store user subscription details.
• VLR (Visitor Location Register) temporarily holds information about mobile subscribers currently within its jurisdiction, while their more permanent data resides in the HLR.
• APBTS is not a standard network element widely recognized in mobile communications.

The HLR's ability to maintain an updated record of user information is essential for network integrity and functionality.