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# Assignment No. 3 Semester: Spring 2015 Data Communication - CS601 Total Marks: 12 Due Date: 27/07/2015

Objective:

To have the understanding of Transmission Impairments

and Performance of Transmission Medium.

Please view the Assignment Submission Process document provided to you by the Virtual University for uploading assignments.

• Your assignment must be in Microsoft Word format.

(Any other format like scan images, PDF, Zip, rar, bmp etc will not be accepted)

• No assignment will be accepted through email.

Rules for Marking:

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

• The assignment is submitted after due date.
• The submitted assignment does not open or file is corrupted.
• Your assignment is copied from internet, handouts or from any other student

(Strict disciplinary action will be taken in this case).

Question No.1:

Consider a noisy channel in which the value of the signal-to-noise ratio is 2500

and the channel capacity according to Shannon Capacity formula is 33840 bps.

Find its bandwidth? Provide your answer with full calculation and correct unit.

 Calculation Bandwidth with proper Unit

Question No. 2:

Suppose a signal travels through a transmission medium and due to some

reasons its power is reduced to quarter. You are required to measures the relative strength of this signal before and after power loss. Provide your answer with full calculation and correct unit.

 Calculation Relative signal strength before and after power loss with unit

Note: Give you solution with all relevant calculations in given tables.

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10 Marks han 12 nhi  eid k bad is ki compleat solution bhejonga because main gaon main aya hwa

Eid khtm Abrar bhai ab to solution dy dyn

yes main v wapas aa gay :) bus ab assignment ko dekhta hn

1) In computer networks, bandwidth is used as a synonym for data transfer rate, the amount of data that can be carried from one point to another in a given time period (usually a second). Network bandwidth is usually expressed in bits per second (bps); modern networks typically have speeds measured in the millions of bits per second (megabits per second, or Mbps) or billions of bits per second (gigabits per second, or Gbps).

Note that bandwidth is not the only factor that affects network performance: There is also packet losslatency and jitter, all of which degrade network throughput and make a link perform like one with lower bandwidth.  A network path usually consists of a succession of links, each with its own bandwidth, so the end-to-end bandwidth is limited to the bandwidth of the lowest speed link (thebottleneck).

Different applications require different bandwidths.  An instant messaging conversation might take less than 1,000 bits per second (bps); avoice over IP (VoIP) conversation requires 56 kilobits per second (Kbps) to sound smooth and clear.  Standard definition video (480p) works at 1 megabit per second (Mbps), but HD video (720p) wants around 4 Mbps, and HDX (1080p), more than 7 Mbps.

Effective bandwidth -- the highest reliable transmission rate a path can provide -- is measured with a bandwidth test. This rate can be determined by repeatedly measuring the time required for a specific file to leave its point of origin and successfully download at its destination.

2) Bandwidth is the range of frequencies -- the difference between the highest-frequency signal component and the lowest-frequency signal component -- an electronic signal uses on a given transmission medium. Like the frequency of a signal, bandwidth is measured in hertz(cycles per second). This is the original meaning of bandwidth, although it is now used primarily in discussions about cellular networks and the spectrum of frequencies that operators license from various governments for use in mobile services.

3) In business, bandwidth is sometimes used as a synonym for capacity or ability. In this sense, bandwidth usually refers to having time or staffing available to tackle something, e.g. "We just don't have the bandwidth to take on mobile app development, we're already short-staffed on developers."

is there anyone who solve this ?

Assignment No. 3

Semester: Spring 2015

Data Communication - CS601

Total Marks: 12

Due Date: 27/07/2015

Objective:

To have the understanding of Transmission Impairments and Performance of Transmission Medium.

Please view the Assignment Submission Process document provided to you by the Virtual University for uploading assignments.

• Your assignment must be in Microsoft Word format.

(Any other format like scan images, PDF, Zip, rar, bmp etc will not be accepted)

• No assignment will be accepted through email.

Rules for Marking:

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

• The assignment is submitted after due date.
• The submitted assignment does not open or file is corrupted.
• Your assignment is copied from internet, handouts or from any other student

(Strict disciplinary action will be taken in this case).

Assignment

Question No.1:

Consider a noisy channel in which the value of the signal-to-noise ratio is 2500 and the channel capacity according to Shannon Capacity formula is 33840 bps. Find its bandwidth? Provide your answer with full calculation and correct unit.

 Calculation Bandwidth with proper Unit

Question No. 2:

Suppose a signal travels through a transmission medium and due to some reasons its power is reduced to quarter. You are required to measures the relative strength of this signal before and after power loss. Provide your answer with full calculation and correct unit.

 Calculation Relative signal strength before and after power loss with unit

Note: Give you solution with all relevant calculations in given tables.

Wish You All The Best

J

Theory of Automata (CS402)

Total marks = 20

Deadline Date = July 31, 2015

Rules for Marking

It should be clear that your assignment would not get any credit if:

• The assignment is submitted after the due date.
• The submitted assignment does not open or file is corrupt.
• Strict action will be taken if submitted solution is copied from any other student or from the internet.

1)      You should concern the recommended books to clarify your concepts as handouts are not sufficient.

2)      You are supposed to submit your assignment in .doc format. Any other formats like scan images, PDF, zip, rar and bmp etc will not be accepted.

Note:

No assignment will be accepted after the due date via email in any case (whether it is the case of load shedding or internet malfunctioning etc.). Hence refrain from uploading assignment in the last hour of deadline. It is recommended to upload solution file at least two days before its closing date.

For any query, feel free to email at:

cs402@vu.edu.pk

Q. Prove the equivalence of the given two FAs by computing (L1 Ç L2c)È (L1c Ç L2).

Note: All transition tables are required.

Best of luck!

bhai g solution plz....

Our main purpose here discussion not just Solution

We are here with you hands in hands to facilitate your learning and do not appreciate the idea of copying or replicating solutions.

Theory of Automata (CS402)

Total marks = 20

Deadline Date = July 31, 2015

Rules for Marking

It should be clear that your assignment would not get any credit if:

• The assignment is submitted after the due date.
• The submitted assignment does not open or file is corrupt.
• Strict action will be taken if submitted solution is copied from any other student or from the internet.

1)      You should concern the recommended books to clarify your concepts as handouts are not sufficient.

2)      You are supposed to submit your assignment in .doc format. Any other formats like scan images, PDF, zip, rar and bmp etc will not be accepted.

Note:

No assignment will be accepted after the due date via email in any case (whether it is the case of load shedding or internet malfunctioning etc.). Hence refrain from uploading assignment in the last hour of deadline. It is recommended to upload solution file at least two days before its closing date.

For any query, feel free to email at:

cs402@vu.edu.pk

Q. Prove the equivalence of the given two FAs by computing (L1 Ç L2c)È (L1c Ç L2).

Note: All transition tables are required.

Best of luck!

Idea solution

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