| a. SGSN – Serving GPRS Support Node |
| b. GGSN – Gateway GPRS Support Node |
| c. IP – Internet Protocol |
| d. All of the above |
| Answer: All of the above |
| a. SGSN – Serving GPRS Support Node |
| b. GGSN – Gateway GPRS Support Node |
| c. IP – Internet Protocol |
| d. All of the above |
| Answer: All of the above |