V - SAT Objective type Questions and Answers

11. What are demodulators used for?
a)      Receive the inbound carriers and extract the data packets.
b)      Send outbound carriers and data packets
c)      Extract data packets only
d)      Receive the inbound carrier only
 Ans: a

12. Meshed networks are also known as?
a)     Point to multipoint networks
b)     Point to point networks
c)     Multipoint to multipoint Networks
d)     None of the above
 Ans: b

13. Meshed networks are generally capable of up to 'what' data rate?
a)     6Mb/s
b)     4Kb/s
c)     2Mb/s
d)     100Kb/s
 Ans: c

14. Mesh network antennas are generally around?
a)     2 to 14 metres
b)     2 to 150 metres
c)     1 to 1.5 cm
d)     2 to 3.7 metres
Ans: d

15. A mesh network remote terminal consists of?
a)   A control modem
b)   A network control system to operate the network
c)   A modem bank & An ODU
d)     All of the above
 Ans: d

16. Three of the major VSAT players in today's VSAT  market?
a)     Telstra, Spaceway, Astrolink and Euro Skyway
b)     Spaceway  AT&T, Arab Air
c)     Spaceway, Astrolink and Euro Skyway
d)     Astrolink, Arab Air, Telstra
 Ans: c

17. Broadband VSAT technology to be released will support data rates of ?
a)   send 256Kb/s : receives at 3Mb/s
b)   send 512Kb/s : receives at 256Kb/s
c)   send 512Kb/s : receives at 2Mb/s
d)     send 256Kb/s : receives at 2Mb/s
 Ans: c

18. What was the original VSAT market and why?
a)     Alaska / cost
b)     North America / regulation
c)     Asia / regulation
d)     Europe / cost
 Ans: b

19. Satellites in the future will contain their own 'what' to decrease signal latency time?
a)     Power Supply
b)     Mini Hubs
c)     Switches
d)     None of the above
 Ans: c

20. New VSAT Technology will incorporate 'what' to decrease noise?
a)     Larger antennas
b)     Stronger signals
c)     Larger hubs
d)     More powerful satellites
Ans: b

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Top 50 V - SAT Objective type Questions and Answers

1. VSAT is the acronym for?
a)     Very Small Aperture Terminal
b)   Vertical Satellite Augmented Time-division
c)   Vertical Satellite Augmented Terminal
d)   Very Small Augmented Terminal
 Ans: a

2. VSATs are small stations with antenna diameters from?
a)     4 metres down to 10 cm
b)     6 meters down to 2 meters.
c)     2.4 meters down to 45 cm
d)     20 meters down to 5 mm
  Ans: c

3. VSATs mainly compete with 'what' for market share?
a)     Terrestrial landlines
b)     Telephone market
c)     Rupert Murdoch
d)     Mobile telephone markets
 Ans: a

4. VSATs can support all of the following.
a)      internet, data, LAN and voice/fax
b)      internet, data, LAN
c)      Data, TV, voice/fax
d)      All of the above
 Ans: a

5. Why are larger antenna needed in Asia, Africa and Latin America?
a)     Wild animals
b)     Green House gases
c)     Rain
d)     Larger Trees
Ans: c

6. DTE stands for?
a)     Data Terminating Equipment
b)     Data Terminal Equipment
c)     Data Transforming Equipment
d)     Disaster Teraforming  Ergonomics
 Ans: b

7. VSATs operate mainly in the?
a)     Ku band and C band frequencies
b)     C band only
c)     Ku band only
d)     Ku, C, F bands
 Ans: a

8. Name the two major VSAT Topology's
a)     Star and Triangle
b)     Mesh and Oblong
c)     Star and Mesh
d)     Waterfall and Dodecahedron
 Ans: c

9. With a star topology the VSAT Terminal transmits using?
a)     FDMA
b)     FLST
c)     CDMA
d)     TDMA
 Ans: d

10. With a star topology the Hub Terminal transmits using?
a)     TDMA
b)     TDM
c)     FDMA
d)     CDMA
 Ans: b


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