Tài liệu Đề thi trắc nghiệm kỹ thuật viễn thông - Đề số 4 doc

1. 
a) Stored Program Control
b) Switching Processor Control
c) Switched and Program Circuit
d) 

2. 
a) 
b) 
c) 2 dây 4 dây
d) 

3. 
a) 
b) 
c) 
d) 

4. --
a) 
b) 
c) 
d) 


5. 1.
a) 2.048Kbit/s
b) 8Mbit/s
c) 8,448Kbit/s
d) 8,448Mbit/s

6. 2.
a) 2.048Kbit/s
b) 8Mbit/s
c) 8,448Kbit/s
d) 8,448Mbit/s


7. 3.
a) 2.048Kbit/s
b) 34,368 Mbps
c) 8,448Kbit/s
d) 8,448Mbit/s


8. 4.
a) 2,048 Mbps
b) 8Mbps
c) 139,264 Mbps
d) 8,448Mbps




9. 5.
a) 2,048 Mbps
b) 564.992 Mbps
c) 139,264 Mbps
d) 8,448 Mbps

10. 2.
a) Xen bit
b) Xen byte
c) Xen word
d) Xen frame

11. 
PDH?
a) 2
b) 3
c) 4
d) 5

12. 1?
a) TS0
b) TS16
c) TS31
d) 

13. 1.
a) 256
b) 125
c) 2.048
d) 8.000

14. 1.
a) 256
b) 125
c) 1544
d) 193

15. 1 2.048Kbit/s 
?
a) TS0
b) TS1
c) TS16
d) TS31

16. ?
a) FDM
b) TDM
c) WDM
d) 



17. 1.
a) 250 microgiây
b) 125 microgiây
c) 2,048 microgiây
d) 

18. ?
a) Audio
b) Image
c) Video
d) TV

19. 30 voice channel timeslot trong khung E1 (PCM-30).
a) 250ms
b) 125ms
c) 125µs
d) 4,9µs

20. 1?
a) 1
b) 4
c) 16
d) 64

21. Cho 1 (PCM-30).
a) 250ms
b) 125ms
c) 125µs
d) 0,49µs


22. 1?
a) 30
b) 32
c) 480
d) 1920

23. E1 
?
a) 24
b) 30
c) 31

d) 32

24. 2?
a) 30
b) 120
c) 480
d) 1920

25. 3?
a) 30
b) 120
c) 480
d) 1920

26. 4?
a) 30
b) 120
c) 480
d) 1920

27. 5?
a) 120
b) 480
c) 1920
d) 7680

28. 1?
a) HDB3
b) AMI
c) HDB3 và AMI

d) CMI

29. 2?
a) HDB3
b) AMI
c) HDB3 và AMI
d) CMI

30. 3?
a) HDB3
b) AMI
c) HDB3 và AMI
d) CMI

31. 4?
a) HDB3
b) AMI
c) HDB3 và AMI
d) CMI

32. 5?
a) HDB3
b) AMI
c) HDB3 và AMI
d) CMI

33. 
a) Châu Âu
b) 
c) 

d) 

34. 
a) Châu Âu
b) 
c) 
d) 

35. 
a) Châu Âu
b) 
c) 
d) 

36. ?
a) 
b) 
c) 
d) 