 
			 
			MCQOPTIONS
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				This section includes 20 Mcqs, each offering curated multiple-choice questions to sharpen your Telecom knowledge and support exam preparation. Choose a topic below to get started.
| 1. | Possible data rates in a Half Rate TCH channel are _____ ? | 
| A. | 3.6kbps | 
| B. | 6kbps | 
| C. | 3.6, 6kbps | 
| D. | None | 
| Answer» D. None | |
| 2. | What is the speech rate before coding in a Half Rate TCH channel? | 
| A. | 11.4kbps | 
| B. | 22.8kbps | 
| C. | 5.6kbps | 
| D. | 11.2kbps | 
| Answer» D. 11.2kbps | |
| 3. | What is the total bitrate after channel coding in a Half Rate TCH channel? | 
| A. | 11.4kbps | 
| B. | 22.8kbps | 
| C. | 34.2kbps | 
| D. | None | 
| Answer» B. 22.8kbps | |
| 4. | What are the data rates of services available in ISDN and other services that can be transmitted in a TCH channel? | 
| A. | 2.4kbps | 
| B. | 4.8kbps | 
| C. | 9.6kbps | 
| D. | All | 
| Answer» E. | |
| 5. | What is TRUE about a Full Rate TCH channel? | 
| A. | It carries a speech of 13kbps before encoding | 
| B. | It carries a total of 22.8kbs information after channel coding | 
| C. | Data rates supported are 3.6, 6 and 12 kbps respectively. | 
| D. | All | 
| Answer» E. | |
| 6. | What is the other type of information that a TCH channel contain or carry? | 
| A. | Signalling to forward a call | 
| B. | Short Message Service signalling | 
| C. | Both A and B | 
| D. | None | 
| Answer» D. None | |
| 7. | Choose a Channel that carries Signalling information? | 
| A. | Broadcast Control channel | 
| B. | Common control channel | 
| C. | Dedicated control channel | 
| D. | All | 
| Answer» E. | |
| 8. | The type of information transferred in Traffic Channel (TCH) is ____ ? | 
| A. | Voice | 
| B. | Data | 
| C. | Both Voice and Data | 
| D. | Signalling | 
| Answer» D. Signalling | |
| 9. | Majority of the GSM Channels work on ______ interface? | 
| A. | Abis interface | 
| B. | A interface | 
| C. | Um interface | 
| D. | M interface | 
| Answer» D. M interface | |
| 10. | BCCH (Broadcast Control Channel) frequency is also called _________? | 
| A. | Engine | 
| B. | Driver | 
| C. | Pilot | 
| D. | None | 
| Answer» D. None | |
| 11. | Broadcasting is a concept of transferring information from _______ to _______? | 
| A. | One to one | 
| B. | Many to one | 
| C. | One to many | 
| D. | Many to many | 
| Answer» D. Many to many | |
| 12. | What are the types of Logical channels in a GSM Structure or Architecture? | 
| A. | Traffic channels | 
| B. | Broadcasting channels | 
| C. | Common control channels, Dedicated control channels | 
| D. | All | 
| Answer» E. | |
| 13. | What is the duration of a GSM TDMA Frame? | 
| A. | 4.614ms | 
| B. | 5.614ms | 
| C. | 6.614ms | 
| D. | None | 
| Answer» B. 5.614ms | |
| 14. | What is the name of a single transmission burst that lasts for only 0.577ms in a GSM TDMA frame? | 
| A. | Frame | 
| B. | Channel (or Physical channel) | 
| C. | Link | 
| D. | None of the above | 
| Answer» C. Link | |
| 15. | In a GSM-1800 Band, what is the duplex spacing between downlink and uplink channels? | 
| A. | 75MHz | 
| B. | 85MHz | 
| C. | 95MHz | 
| D. | None | 
| Answer» E. | |
| 16. | In a GSM-900 Band, what is the duplex spacing between uplink and downlink channels? | 
| A. | 25MHz | 
| B. | 35MHz | 
| C. | 45MHz | 
| D. | None | 
| Answer» D. None | |
| 17. | Each Carrier frequency is divided or shared among _______ number of channels. | 
| A. | 4 | 
| B. | 6 | 
| C. | 8 | 
| D. | 10 | 
| Answer» D. 10 | |
| 18. | In GSM-1800 band, the total number of Carrier Frequencies are ? | 
| A. | 124 | 
| B. | 248 | 
| C. | 374 | 
| D. | 448 | 
| Answer» D. 448 | |
| 19. | What is the spacing between each carrier frequency to avoid interference and crosstalk? | 
| A. | 100KHz | 
| B. | 200KHz | 
| C. | 128KHz | 
| D. | 256KHz | 
| Answer» C. 128KHz | |
| 20. | What is the total number of Carrier Frequencies that can be formed in a 25MHz band width of either Uplink or Downlink of GSM? | 
| A. | 128 | 
| B. | 126 | 
| C. | 124 | 
| D. | None | 
| Answer» D. None | |