MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Analog Communications knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the use of ARQ? |
| A. | correct bit errors |
| B. | works with a simplex channel |
| C. | better transmission efficiency |
| D. | can only be used in unidirectional channel |
| Answer» B. works with a simplex channel | |
| 2. |
What is the full form of LATA? |
| A. | Local Access Telephone Area |
| B. | Local Area Telephone Access |
| C. | Local Access and Transport Area |
| D. | Local Area Transport Access |
| Answer» D. Local Area Transport Access | |
| 3. |
WHAT_IS_THE_USE_OF_ARQ??$ |
| A. | correct bit errors |
| B. | works with a simplex channel |
| C. | better transmission efficiency |
| D. | can only be used in unidirectional channel |
| Answer» B. works with a simplex channel | |
| 4. |
Which statement is true about HDLC? |
| A. | it is not a bit-oriented protocol |
| B. | it is a bit-oriented protocol |
| C. | it is identical to SDLC |
| D. | it is non-identical to SDLC |
| Answer» C. it is identical to SDLC | |
| 5. |
The output of a battery eliminator is closed to ________ |
| A. | 70V DC |
| B. | 70V AC |
| C. | 6V AC |
| D. | 6V DC |
| Answer» E. | |
| 6. |
In frequency modulation, there is a large increase in noise and hence decrease in the signal to noise ratio. |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
Why synchronous transmission is more preferred? |
| A. | it has no start and stop bits |
| B. | it is cheaper than asynchronous |
| C. | it is easier to implement |
| D. | less complex |
| Answer» B. it is cheaper than asynchronous | |
| 8. |
The transmitter and receiver are frame-by-frame synchronized using the data bits in asynchronous transmission. |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
Who invented the five-level teletype code? |
| A. | Teletype company |
| B. | Morkum company |
| C. | Western Union |
| D. | Emile Baudot |
| Answer» E. | |
| 10. |
If we see practically, parallel data transmission is sent ________ |
| A. | over long distances only |
| B. | over short distances only |
| C. | usually over a coaxial cable |
| D. | over a single channel |
| Answer» C. usually over a coaxial cable | |
| 11. |
What is the full form of DTMF? |
| A. | Dual-Tone Multi frequency |
| B. | Dual Telephony Multiple Frequency |
| C. | Dual-Tone Minimum Frequency |
| D. | Digital Tone Minimum Frequency |
| Answer» B. Dual Telephony Multiple Frequency | |