Match the following Internet-related terminologies with their functions.
| Terminology | Function |
| A. Router | 1. Converts digital data into signals for transmission over telephone lines |
| B. Modem | 2. Directs data packets between networks |
| C. Firewall | 3. Provides Internet connectivity to end-users |
| D. ISP | 4. Secures a network by monitoring and controlling incoming/outgoing traffic |
Qusनिम्नलिखित इंटरनेट-संबंधी शब्दावली को उनके कार्यों से सुमेलित कीजिए।
A. A-1, B-2, C-3, D-4
B. A-4, B-3, C-1, D-2
C. A-3, B-4, C-2, D-1
D. A-2, B-1, C-4, D-3