MCQOPTIONS
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MCQOPTIONS
This section includes 21 Mcqs, each offering curated multiple-choice questions to sharpen your Computer Fundamentals knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In this technique, there is a link between subscriber and network and a local loop. |
| A. | SSDL |
| B. | DSDL |
| C. | ASDL |
| D. | TSDL |
| Answer» D. TSDL | |
| 2. |
A system in which two channels are dedicated to transfer data. |
| A. | TV |
| B. | Cable |
| C. | Modem |
| D. | Cable modem |
| Answer» E. | |
| 3. |
A technique that allocates time slots dynamically. |
| A. | TDM |
| B. | WDM |
| C. | Dynamic TDM |
| D. | Statistical TDM |
| Answer» E. | |
| 4. |
IN_THIS_TECHNIQUE,_THERE_IS_A_LINK_BETWEEN_SUBSCRIBER_AND_NETWORK_AND_A_LOCAL_LOOP.?$ |
| A. | SSDL |
| B. | DSDL |
| C. | ASDL |
| D. | TSDL |
| Answer» D. TSDL | |
| 5. |
IN_TDM,_SLOTS_ARE_FURTHER_DIVIDED_INTO__________?$ |
| A. | Seconds |
| B. | Frames |
| C. | Packets |
| D. | None of the mentioned |
| Answer» C. Packets | |
| 6. |
A_SYSTEM_IN_WHICH_TWO_CHANNELS_ARE_DEDICATED_TO_TRANSFER_DATA.?$ |
| A. | TV |
| B. | Cable |
| C. | Modem |
| D. | Cable modem |
| Answer» E. | |
| 7. |
In TDM, the transmission rate of the multiplexed path is usually _______ the sum of the transmission rates of the signal sources? |
| A. | Greater than |
| B. | Lesser than |
| C. | Equal to |
| D. | Equal to or greater than |
| Answer» B. Lesser than | |
| 8. |
A technique that allocates time slots dynamically? |
| A. | TDM |
| B. | WDM |
| C. | Dynamic TDM |
| D. | Statistical TDM |
| Answer» E. | |
| 9. |
Multiplexing can provide _________ |
| A. | Efficiency |
| B. | Privacy |
| C. | Anti jamming |
| D. | Both Efficiency & Privacy |
| Answer» E. | |
| 10. |
Many time slots are wasted in __________ |
| A. | TDM |
| B. | Synchronous TDM |
| C. | Asynchronous TDM |
| D. | FDM |
| Answer» C. Asynchronous TDM | |
| 11. |
The state when dedicated signals are idle are called __________ |
| A. | Death period |
| B. | Poison period |
| C. | Silent period |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 12. |
For voice, each channel contains a ___ word of digitized data. |
| A. | 2 |
| B. | 1 |
| C. | 0 |
| D. | 4 |
| Answer» C. 0 | |
| 13. |
If link transmits 4000frames per second, and each slot has 8 bits, the transmission rate of circuit this TDM is _________ |
| A. | 32kbps |
| B. | 500bps |
| C. | 500kbps |
| D. | None of the mentioned |
| Answer» B. 500bps | |
| 14. |
A technique that can be a solution to the problem of synchronizing data sources. |
| A. | framing |
| B. | data link control |
| C. | full link control |
| D. | pulse stuffing |
| Answer» E. | |
| 15. |
If there are n signal sources of same data rate than TDM link has _______ slots. |
| A. | n |
| B. | n/2 |
| C. | n*2 |
| D. | 2<sup>n</sup> |
| Answer» B. n/2 | |
| 16. |
Controlling the frequency is referred as _________ |
| A. | frequency modulation |
| B. | hertz modulation |
| C. | amplitude modulation |
| D. | phase modulation |
| Answer» B. hertz modulation | |
| 17. |
Which multiplexing technique transmits digital signals? |
| A. | FDM |
| B. | TDM |
| C. | WDM |
| D. | FDM & WDM |
| Answer» C. WDM | |
| 18. |
In this type of multiplexing time slots are preassigned to sources and fixed. |
| A. | TDM |
| B. | Synchronous TDM |
| C. | Asynchronous TDM |
| D. | FDM |
| Answer» C. Asynchronous TDM | |
| 19. |
Multiplexing is used in _______ |
| A. | Packet switching |
| B. | Circuit switching |
| C. | Data switching |
| D. | Packet & Circuit switching |
| Answer» C. Data switching | |
| 20. |
In TDM, the samples occupy adjacent time slots. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 21. |
WDM stands for? |
| A. | Wave division multiplexing |
| B. | Wavelength division multiplexing |
| C. | Wavelength dependent multiplexing |
| D. | Wave dependent multiplexing |
| Answer» C. Wavelength dependent multiplexing | |