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Answers to the Quiz

1. When was the first optical fiber cable used in Macao?
a. 1983

2. Macao is the first city in Asia that initiated the all-round digitalization of the fixed network. When was the initiative realized in Macao?
a. 1991

3. What is the overall length of the optical fiber cable in Macao?
c. 276 000 meters

4. There are two sets of optical fiber cables installed in Macau to connect the mainland China. The first was launched in 1988, how about the other?
b. 1992

5. The "Sea-Me-We-3" Submarine Cable extends across the Asia, Africa and Europe and connects altogether 33 countries and regions. The overall length of the Cable is about:
b. 36 000 kilometers

6. What is the total number of mobile phone subscribers (postpaid + prepaid) in Macao by December of 2003?
a. 364 031

7. What is the mobile market penetration rate in Macao by December of 2003?
c. 80%

8. What is the date of the World Telecommunication Day?
c. 17th May

9. What is the monthly mobile licence fee charge for a postpaid mobile subscriber in 2004?
b. MOP14

10. What is the short form for Multi-media Messaging Service?
b. MMS

11. With the liberalization of the Macao mobile market, when did the new operators begin to provide services?
b. 2001

12. When did the mobile number portability service become effective?
c. December 2001

13. Generally speaking, what is the maximum quantity for Chinese characters in each SMS?
b. 70

14. Can Macao subscribers send/receive International SMS to/from overseas mobile subscribers?
a. Yes

15. In Asia, the UMTS-3G service was first launched in:
b. Japan

16. The Office for the Development of Telecommunications and Information Technology (GDTTI) is subordinate to and works under the direction of:
c. the Secretary for the Transportation and Public Works

17. What is the characteristic of the optical fiber?
c. low transmission loss, broad band and not liable to be interfered by other signals.

18. Until now, what is the frequency band used by the public-use mobile phone system in Macao?
c. 900MHz and 1800MHz

19. Which of the following cables has the narrowest bandwidth?
a. twisted pair cable

20. What does the "downlink" mean in satellite communication?
a. communication from satellite to earth station

21. The International Telecommunication Union is the specialized agency of:
a. the United Nations

22. The history of the International Telecommunication Union can be traced back to the year of:
b. 1865

23. The 98MHz and 100.7MHz belong to the frequency band of:
a. VHF

24. What is the phone number of the Office for the Development of Telecommunications and Information Technology that the public can resort to whenever having complaints?
a. 3969161

25. Which of the followings does not belong to the work field of the Office for the Development of Telecommunications and Information Technology?
a. road re-paving

26. The radioelectric equipments of the radio and television stations are under the supervision of:
c. the Office for the Development of Telecommunications and Information Technology

27. What is the Smith Chart?
a. chart to calculate the impedance in transmission lines

28. What is the Phase-locked Loop (PLL)?
c. servo electronic loop composed of a phase detector, a low-pass filter and a voltage controlled oscillator

29. What is the radio wave or hertzian wave?
c. electromagnetic wave lower than 3000GHz

30. What frequencies attenuate in the low-pass filter rapidly?
a. frequencies higher than the cutoff frequency