1. Which statement best describes the role of the Serving GPRS Support Node (SGSN)?

• It converts GPRS packets into PDP format.

• It authenticates users and stores location information.

• It provides IP addresses for mobile devices.

• It controls the power of the mobile station.

1. What is the main difference between the Class A and Class C modes of GPRS operation?

• Class A mode supports both packet-switched and circuit-switched services simultaneously, while Class C only supports circuit-switched.

• Class A mode supports packet-switched services only, while Class C supports both packet-switched and circuit-switched services.

• Class A mode allows simultaneous operation of GPRS and GSM services, while Class C supports packet-switched data only.

• Class A mode supports multiple data flows, while Class C supports a single data flow.

1. Which GPRS interface is responsible for connecting the Gateway GPRS Support Node (GGSN) to external packet data networks?

• Gb interface

• Gi interface

• Gc interface

• Gr interface

What happens when a mobile station initiates the GPRS Attach procedure?

• The SGSN assigns an IMSI to the mobile station.

• The mobile station requests an IP address for data services.

• The HLR authenticates the mobile station and registers it in the SGSN.

• The GGSN converts the subscriber’s profile to a GSM format.

Which of the following components of GPRS architecture is responsible for routing and mobility management?

• GGSN

• SGSN

• MSC

• BSS

What is the primary function of the Gateway GPRS Support Node (GGSN) in the GPRS network?

• It forwards packet-switched data to the SGSN.

• It performs user authentication and stores profiles.

• It converts GPRS packets into a packet data protocol (PDP) format.

• It manages radio channel allocation for mobile stations.

Which component is responsible for packet segmentation and reassembly in the GPRS architecture?

• Base Transceiver Station (BTS)

• Base Station Controller (BSC)

• Packet Control Unit (PCU)

• Home Location Register (HLR)

In the GPRS architecture, which node is responsible for detecting and registering a new mobile station (MS) in its area?

• GGSN

• SGSN

• HLR

• VLR

Which of the following statements best explains the difference between circuit-switched and packet-switched technologies in GSM and GPRS, respectively?

• Circuit-switched is billed based on data transferred, while packet-switched is based on connection duration.

• Circuit-switched technology establishes a dedicated connection, while packet-switched technology uses bandwidth more efficiently by sending data in packets.

• Circuit-switched technology is used for internet access, while packet-switched technology is used only for voice communication.

• Circuit-switched technology allows for simultaneous data and voice transfer, while packet-switched does not.

Which GPRS interface is used to query the IMEI information from the Equipment Identity Register (EIR)?

• Gp interface

• Gf interface

• Gn interface

• Gi interface