Assignment No. 4 Semester Spring 2012 Data Communication - CS601

Assignment No. 4
Semester Spring 2012
Data Communication - CS601

Total Marks: 20

Due Date: 21-06-2012

Objective: To understand the Guided Media and Satellite Communication

Instructions:

Please read the following instructions carefully before solving & submitting assignment:

Assignment should be in your own wordings not copied from net, handouts or books.

It should be clear that your assignment will not get any credit (marks) if:

• The assignment is submitted after due date.
• The submitted assignment does not open or file is corrupt.
• The assignment is copied (from other student or copied from handouts or internet).
• Student ID is not mentioned in the assignment File or name of file is other than student ID.

For any query about the assignment, contact at cs601@vu.edu.pk

GOOD LUCK

Q. 1. Following table presents different types of frequencies with frequency ranges. You are required to re-arrange the Column B with respect to Column A                                                                   [5 Marks]

	Column A	Column B
Sr. No	Name	Frequency Range
1	VLF	300MHz to 3GHz
2	EHF	30MHz to 300MHz
3	UHF	3GHz to 30GHz
4	VHF	3 KHz to 30KHz
5	SHF	30GHz to 300GHz

Q. 2. Usually Satellite Systems are categorized according to their orbital distance as GEO, LEO and MEO. Compare these satellite systems in the following table according to their features.              [10 Marks]

	GEO	LEO	MEO
Type / Name of Orbit
Distance from Earth (aprx. in miles)
Usage /Application
Time take to complete one cycle around the earth (aprx. in hours)

Q. 3. Suppose a research institute wants to connect its main office with the testing site 2 miles away. The institution wants an economicalsolution using Fiber Optics.

Suppose you are the IT consultant of this institution, considering the above mentioned scenario, answer the following questions.                                                                                                                  [2+3=5 Marks]

a)      Which type / mode of fiber; will you choose to provide an economical solution? ( Just write name)                                                                               

b)     Why will you not choose the other type /mode?  Give Reasons.                                                   

Note:

• Assignment should be in your own wordings not exactly copied from Internet, handouts or books.

• Your answer should be “to the point”.