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. |
AN_AM_SIGNAL_IS_REPRESENTED_BY_X(T)_=_(30_+_2SIN(700‚ÂÀ√¨‚ÀÖ√ËT))_COS(2‚ÂÀ√¨‚ÀÖ√ËT_X_10¬¨¬®‚ÄÖ√¢¬ßT)V._CARRIER_POWER_OF_THE_WAVE_IS___________?$# |
| A. | 555W |
| B. | 675W |
| C. | 450W |
| D. | 310W |
| Answer» D. 310W | |
| 2. |
What is its sideband power in an AM signal is represented by x(t) = (30 + 2Sin(700πt)) Cos(2πt x 10²t)V.$# |
| A. | 4W |
| B. | 1W |
| C. | 3W |
| D. | 2W |
| Answer» C. 3W | |
| 3. |
An AM signal is represented by x(t) = (30 + 2Sin(700πt)) Cos(2πt x 10²t)V. Find the total power of amplitude modulated wave?$# |
| A. | 453W |
| B. | 675W |
| C. | 789W |
| D. | 451W |
| Answer» E. | |
| 4. |
An AM signal is represented by x(t) = (30 + 2Sin(700πt)) Cos(2πt x 10²t)V. What is the modulation index?# |
| A. | 0.7 |
| B. | 0.066 |
| C. | 0.341 |
| D. | 0.916 |
| Answer» C. 0.341 | |
| 5. |
What is the effect of too many collisions in any network? |
| A. | network slows down |
| B. | network crashes |
| C. | cable overheats |
| D. | data gets lost |
| Answer» B. network crashes | |
| 6. |
Which network never experienced a collision? |
| A. | CSMA |
| B. | Token-passing |
| C. | LAN |
| D. | All networks have collision at some point |
| Answer» C. LAN | |
| 7. |
What we called each computer in a network? |
| A. | node |
| B. | circuit |
| C. | hub |
| D. | switch |
| Answer» B. circuit | |
| 8. |
CSMA stands for _________ |
| A. | Carrier Sense Multiple Access |
| B. | Client Sense Multiple Access |
| C. | Carrier Server Multiple Access |
| D. | Client Server Multiple Access |
| Answer» B. Client Sense Multiple Access | |
| 9. |
Mostly LANs are based on Ethernet. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
What is the full form of SDLC? |
| A. | Synchronous Data Link Character |
| B. | Synchronous Data Line Control |
| C. | Synchronous Data Line Character |
| D. | Synchronous Data Link Control |
| Answer» E. | |
| 11. |
Calculate power in each sideband, if power of carrier wave is 176W and there is 60% modulation in amplitude modulated signal? |
| A. | 13.36W |
| B. | 52W |
| C. | 67W |
| D. | 15.84W |
| Answer» E. | |