Arab Open University Faculty of Computer Studies Computing and Information Technology Department T175B: Networked living: Exploring Information and Communication technologies 1 First Semester

Arab Open University Faculty of Computer Studies Computing and Information Technology Department T175B: Networked living: Exploring Information and Communication technologies
1
First Semester 2015/2016
Tutor-Marked Assignment
Cut-Off Date: 14/12/2015 Total Marks: 40
Question One (12 Marks) Given the following spreadsheet which shows the population in several countries between 2011 and 2014 inclusive as stated in http://data.worldbank.org/indicator/SP.POP.TOTL. Use the excel file provided with the TMA file and answer the following questions.
Country Name Population in 2011
Population in 2012
Population in 2013
Population in 2014 Nigeria 164,192,925 168,833,776 173,615,345 178,516,904 France 65,338,149 65,635,082 65,920,302 66,201,365 Australia 22,340,024 22,728,254 23,125,868 23,490,736 Brazil 196,935,134 198,656,019 200,361,925 202,033,670 USA 311,721,632 314,112,078 316,497,531 318,857,056 Canada 34,342,780 34,754,312 35,158,304 35,540,419 China 1,344,130,000 1,350,695,000 1,357,380,000 1,364,270,000
a) Create a column chart taking into account the following chart options. (Paste the chart in the TMA file taking into consideration that all the following points are clear in the pasted version.)
1) A column chart
2) The x-axis represents the country name. (1 Mark) 3) Series represents columns 2, 3, 4 and 5. (4 Marks)
4) Write a chart title. (1 Mark)
5) Write a title for the x-axis. (1 Mark)
6) Write a title for the y-axis. (1 Mark)
7) Legend position in bottom. (1 Mark)
Arab Open University Faculty of Computer Studies Computing and Information Technology Department T175: Networked living: Exploring Information and Communication technologies
2
b) Based on the population data provided in the above table, can you predict what will happen for the population of the mentioned several countries in the coming years? (3 Marks)
Question Two (14 Marks) Part 1 of Block 4 discussed telehealth for providing clinical health care at a distant. Teledentistry is a category of telemedicine field.
Search the web and answer the following.
a) Define Teledentistry? (2 Marks)
b) A typical store-and-forward teledentistry system consists of several devices, list three of them? (6 Marks) c) Teleconsultation through teledentistry can take place in a way such as “Store-and Forward Method”. Mention other two ways? (4 Marks)
d) List two references you have used in Teledentistry. (Wikipedia is not counted) (2 marks)
Question Three (14 Marks) Consider a main system with unknown availability. Also, consider a backup system with an availability of 96.3% is used. (Assume the backup system comes into operation immediately if the main system fails.). The combined system with availability of 93.3147%.
Answer the following questions: (14 Marks)
a) Calculate the availability value of the main system? (8 Marks)
b) Calculate the unavailability value of the main system? (2 Marks)
c) Calculate the unavailability value of the backup system in two days? (4 Marks)