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This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Wireless & Mobile Communications Questions & Answers United States Digital Cellular (IS-54 and IS-136) knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following speech coder is used in USDC? |
| A. | Vector Sum Excited Linear Predictive coder |
| B. | Formant Vocoder |
| C. | Multipulse Excited Linear Predictive coder |
| D. | Residual Excited Linear Predictive coder |
| Answer» B. Formant Vocoder | |
| 2. |
Which of the following channel in USDC is used to send important control or specialized traffic data between the base station and mobile units? |
| A. | DTC |
| B. | CVDCC |
| C. | SACCH |
| D. | FACCH |
| Answer» E. | |
| 3. |
Which of the following channel in USDC provides a signalling channel? |
| A. | DTC |
| B. | CVDCC |
| C. | SACCH |
| D. | FACCH |
| Answer» D. FACCH | |
| 4. |
USDC has ___________ as many control channels as AMPS. |
| A. | Same |
| B. | Three times |
| C. | Twice |
| D. | Four times |
| Answer» D. Four times | |
| 5. |
Because of the compatibility with AMPS, USDC is also known as ___________ |
| A. | SADC |
| B. | PADC |
| C. | D-AMPS |
| D. | K-AMPS |
| Answer» D. K-AMPS | |
| 6. |
USDC is also known as ___________ |
| A. | SADC |
| B. | NADC |
| C. | PADC |
| D. | N-AMPS |
| Answer» C. PADC | |
| 7. |
The dual mode USDC/AMPS system was standardized as ____________ |
| A. | IS-54 |
| B. | IS-136 |
| C. | PSTN |
| D. | GSM |
| Answer» B. IS-136 | |