MCQ
1. Which one is an example of DBMS?
MS Word
MS Excel
C**
MS Access
2. In television transmission, picture signals are transmitted by.
AM
FM
PCM
PAM
3. If the vertical and horizontal components of geomagnetic field in a place is 32µT and 20µT respectively. How much is the dip?
32°
58°
51°
57°
4. একটি বেতার তরঙ্গের দৈর্ঘ্য ৩০০ মিটার। এর কম্পাঙ্ক কত?
৫ মেগাহার্টজ
১ মেগাহার্টজ
৪ মেগাহার্টজ
২ মেগাহার্টজ
5. Full form of URL is-
Uniform Resource Locator
Uniform Resource Link
Uniform Registered Link
Uniform Resource Link
6. Fiber optic cable is made of-
Glass
Copper
Plastic
None
7. SNR = ?
N 0 / S 0
S 0 / N 0
S 0 / N0
S 0/ S 0
8. How many unique signs could be specified by using ASCII-8?
128
256
512
65536
9. Which one acts as the backbone of global village?
Hardware
Software
Networks and connectivity
Data
10. If the voice channel is free in PSTN then what would be the maximum data rate supported by 3.1 kHz bandwidth of voice channel?
4000 bps
5000 bps
6000 bps
8000 bps
11. Which one transfers data at the highest speed?
UTP
STP
co-axial cable
fiber optic cable
12. Waveform shown in figure is that for-
FM
PCM
AM-DSB
AM-SSB
13. Which of the following converts the document written by HTML?
Browser
FTP
HTPP
Web
14. The intermediate frequency in a standard AM receiver is-
455 Hz
455 kHz
4.55 MHz
None of the above
15. In TV transmission the voice signal is modulated.
AM
FM
PM
FSK
16. What is the acceptance value of dividing point between the Wonderb and Jitter?
200Hz
50Hz
20Hz
10Hz
17. Non-coherently detection is not possible for-
PSK
ASK
FSK
Both (a) and (c)
18. Satellite power requirement is provided through-
Lead-acid batteries
Dry cell
Solar cells
Nickel-cadmium cells
19. The ratio of number of successful calls to the number of all call attempts is known as:
Call Back Rate (CBR)
Call Completion Rate (CCR)
Busy Hour Call Rate (BHCR)
Effective Call Rate (ECR)
20. Which kind of switching technique indicates the transfer of coded values from input to output during the same interval of time?
Space Switching
Time Switching
Combination Switching
None of the above