G063 - Satellite Communications questions

1. / Some offices belong to a company with sites worldwide. Data is shared between these sites.
Describe how satellite communications can provide data services for the company. / [6]
Explain two advantages of satellite communication to the company. / [2]
2515 June 2002 Q3
2. / An international satellite broadcasting company offers a range of services only available for users of digital television.
Describe two services offered to a user by digital TV networks. / [4]
2515 June 2003 Q1
3. / A satellite navigation system communicates with a database using a mobile telephone.
Describe the differences between a land based cellular system and one using low Earth orbit satellites. / [6]
2515 June 2004 Q5
4. / (a) / Describe how messages are transmitted and received using satellites. / [3]
(b) / Explain the advantages and disadvantages of using satellites for communication purposes. / [4]
2515 June 2005 Q4
5. / International communications often use satellites.
(a) / Describe how satellites are used in making and receiving international telephone calls. / [4]
An international manufacturing company has branches and employees throughout the world.
(b) / Explain the advantages and disadvantages to the company in using satellites as a means of voice communication between branches and employees. / [6]
(c) / Identify two other uses of satellite communication which may be used by the company. / [2]
2515 January 2006 Q3
6. / (a) / A Global Positioning System (GPS) is one application of satellite technology.
Describe three other applications of satellite technology / [6]
(b) / Describe the disadvantages of satellites. / [6]
2515 June 2007 Q3
7. / Satellite navigation systems have become common in cars.
Explain two limitations of satellite navigation systems and how improvements in technology are overcoming them. / [6]
2515 January 2008 Q1
8. / A satellite broadcasts programmes from a number of different televisions companies.
(a) / Describe one advantage to the customer of using satellite television as opposed to cable television. / [2]
(b) / Describe one disadvantage to the customer of using satellite television as opposed to cable television. / [2]
(c) / One of the television companies broadcasts live sporting events.
Describe the process of delivering the live event from the sports venue to a customer’s television set. / [4]
2515 June 2008 Q3
9. / A taxi company has installed a satellite tracking system into all of its vehicles.
(a) / Describe two advantages to the taxi company of tracking its vehicles in this way. / [4]
(b) / The vehicles have also been equipped with satellite navigation systems.
Explain two reasons why the taxi company has done this. / [4]
(c) / Describe how the drivers will be given feedback by the satellite navigation system’s interface. / [4]
2515 June 2009 Q1
10. / All members of a Mountain Rescue Team are volunteers, living across a wide area including some remote locations.
The Mountain Rescue Team’s emergency vehicles are to have a satellite tracking system installed in them.
(a) / Describe two advantages of tracking its vehicles in this way. / [4]
The vehicles have also been equipped with satellite navigation systems.
(b) / Explain why the Mountain Rescue Team has done this. / [4]
(c) / Describe how the drivers of the emergency vehicle will be given feedback by the satellite navigation system’s interface. / [6]
G063 June 2011 Q10
11. / Describe how satellites are used in GPS. / [4]
G063 January 2013 Q11
12. / Satellite communications are used in the transmission of television programmes.
Explain two advantages of using satellites for this purpose. / [4]
G063 June 2015 Q4